Cell: The Unit
of Life
CHAPTER
8
prACtiCe Questions
Cell and Cell Theory
1. Which of the following organisms are not composed of cells?
(a) Amoeba
(b) Paramecium
(c) Euglena
(d) None of these
2. Unicellular organisms are not capable of
(a) Independent existence
(c) Both (a) and (b)
(b) Performing essential functions of life
(d) None of these
3. Who was the first one to see a live cell?
(a) Robert Hook
(c) Robert Brown
(b) Leeuwenhoek
(d) None of these
4. Who was the German botanist to study the different cells forming plant tissues?
(a) Schleiden
(b) Schwann
(c) Rudolf Virchow
(d) None of these
5. In which year Matthias Schleiden examined a large number of plants and observed that all
plants are composed of different kinds of cells which form the tissues of the plant?
(a) 1638
(b) 1738
(c) 1838
(d) 1938
6. In which year Schwann studied different types of animal cells?
(a) 1839
(b) 1739
(c) 1639
(d) 1938
7. The cell has a thin outer layer which is known as ‘Plasma membrane’. Who reported this?
(a) Schleiden
(b) Schwann
(c) Virchow
(d) Robert Hooke
8. ‘Cell wall is a unique structure of plant cells’. Who concluded this?
(a) Schleiden
(b) Schwann
(c) Both (a) and (b)
(d) None of these
9. Who proposed the hypothesis that the bodies of animals and plants are composed of cells and
product of cells?
(a) Schleiden
(b) Schwann
(c) Both (a) and (b) (d) None of these
10. Who formulated the cell theory?
(a) Schleiden
(b) Schwann
(c) Both (a) and (b)
11. ‘Omnis cellula e cellula’ was given in the year _________
(a) 1756
(b) 1855
(c) 1945
(d) None of these
(d) 1839
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8.4
Cell: The Unit of Life
12. Who was the one to describe that cells divided and new cells are formed from pre-existing
cells?
(a) Schleiden
(b) Schwann
(c) Virchow
(d) All of these
13. Which of the following statement is not a part of final cell theory?
(a) Cell has a thin outer layer called plasma membrane.
(b) All living organisms are made up of cells and products of cells
(c) All cells arise from pre-existing cells.
(d) All of these
14. What is the outer covering of typical plant cell?
(a) Cell wall externally
(b) Plasma membrane externally
(c) Cell wall internally
(d) Cell wall externally, plasma membrane internally
15. Identify the A, B, C and D in the given figure.
A
(a)
(b)
(c)
(d)
B
C
D
A–WBC, B–Mesophyll cell, C–RBC, D–Columnar Epithelial cells
A–Columnar epithelial cells, B–Mesophyll cell, C–WBC, D–RBC
A–Mesophyll cell, B–WBC, C–Columnar epithelial cells, D–WBC
A–RBC, B–Columnar epithelial cells, C–Mesophyll Cell, D–WBC
16. In each cheek cell, there is a dense membrane bound structure which contains chromosome.
This structure is
(a) Endoplasmic reticulum
(b) Golgi bodies
(c) Nucleus
(d) Mitochondria
17. What does a nucleus of a typical animal cell contain?
(a) Chromosomes
(b) Genes
(c) DNA
(d) All of these
Prokaryotic and Eukaryotic Cells
18. The cell containing membrane bound nucleus can be called
(a) Eukaryotic
(b) Prokaryotic
(c) Both (a) and (b)
(d) None of these
19. Identify the figure given below.
(a) Tracheid
(b) Nerve Cell
(c) Lipid bilayer
(d) None of these
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Cell: The Unit of Life8.5
20. If volume of the cell is filled with semi-fluid matrix called cytoplasm, what kind of cell is it?
(a) Eukaryotic
(b) Prokaryotic
(c) Both (a) and (b)
(d) None of these
21. Identify the given below figure.
(a) A tracheid
(c) A parenchyma cell
(b) A vessel
(d) A sieve cell
22. What is the main arena of cellular activities in eukaryotic cells?
(a) Nucleus
(b) Cytoplasm
(c) Plasma membrane
(d) All of these
23. In an eukaryotic cell, where does the various chemical reactions occur to keep the cell in living
state?
(a) Nucleus
(b) Cytoplasm
(c) Mitochondria
(d) All of these
24. How many of the following organelles are found in prokaryotic cells?
ER, Golgi complex, Lysosome, Mitochondria, Microbodies, Vacuoles
(a) 1
(b) 3
(c) 4
(d) 0
25. Where are the ribosomes found in prokaryotic cells?
(a) Cytoplasm
(b) Mitochondria
(c) Chloroplast
(d) All of these
26. Where are ribosomes found in eukaryotic cells?
(a) Cytoplasm
(b) Mitochondria
(c) Chloroplast
(d) All of these
27. How many of the following are membrane bound organelles?
Lysosomes, Ribosomes, Mitochondria, Vacuoles
(a) 2
(b) 3
(c) 4
(d) 0
28. Which of the following organelle is exclusively found in animal cells?
(a) Mitochondria
(b) Chloroplast
(c) Vacuole
(d) Centriole
29. Which of the following is incorrect?
(a) Smallest cell → Mycoplasma
(c) Largest single cell → Ostrich’s egg
(b) Smallest cell → Bacteria
(d) None of these
30. What is the length of mycoplasm cell?
(a) 300 mm
(b) 0.3 μm
(c) 3000 cm
(d) All of these
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Cell: The Unit of Life
31. What could be the length of bacterial cell?
(a) 3 to 5 mm
(c) 3.5 cm
(b) 3 to 5 μm
(d) None of these
32. Diameter of an RBC is
(a) 7 μm
(c) 6 μm
(b) 700 mm
(d) 6000 mm
33. The longest cells in human body are
(a) Muscle cells
(c) Neurons
(b) Cardiac muscle cells
(d) None of these
34. Which of the following is incorrect matching?
(a) Round and biconcave – RBC
(b) Amoeboid – WBC
(c) Elongated – Tracheid
(d) Long and narrow - Nerve cells
35. Identify the A, B, C, D and E in this figure.
A
B
E
D
C
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(a) A–Rough endoplasmic reticulum, B–Smooth endoplasmic reticulum, C–Nuclear
envelope, D–Microtubule, E–Nucleolus
(b) A–Smooth endoplasmic reticulum, B–Rough endoplasmic reticulum, C–Microtubule,
D–Nuclear envelope, E–Nucleolus
(c) A–Nucleolus, B–Microtubule, C–Smooth endoplasmic reticulum, D–Nuclear envelope,
E–Rough endoplasmic reticulum
(d) A–Rough endoplasmic reticulum, B–Nucleolus, C–Microtubule, D–Smooth endoplasmic
reticulum, E–Microtubule
36. Which of the following cells are round and oval?
(a) RBCs
(b) WBCs
(c) Columnar cells
(d) Mesophyll cells
37. Which of the following are long and narrow cells?
(a) Nerve cells
(b) WBC
(c) Columnar epithelial cells
(d) Tracheid
38. Which of the following represent prokaryotic cell?
(a) Blue-green algae
(b) PPLO
(c) Bacteria
(d) All of these
Cell: The Unit of Life8.7
39. Identify the A, B, C, D and E in this figure.
C
A
B
D
E
(a)
A–Smooth endoplasmic reticulum, B–Centriole, C–Golgi apparatus, D–Rough
endoplasmic reticulum, E–Ribosomes
(b)
A–Centriole, B–Smooth endoplasmic reticulum, C–Golgi apparatus, D–Ribosomes,
E–Rough endoplasmic reticulum
(c)
A–Rough endoplasmic reticulum, B–Smooth endoplasmic reticulum, C–Ribosomes,
D–Centriole, E–Golgi apparatus,
(d)
A–Centriole, B–Rough endoplasmic reticulum, C–Golgi apparatus, D–Smooth
endoplasmic reticulum, E–Ribosomes
40. What is true for a prokaryotic cell?
(a) They are smaller in size
(c) Greatly vary in shape and size
(b) Multiply much rapidly than eukaryotes
(d) All of these
41. What is the size of a typical eukaryotic cell?
(a) 1-2 μm
(b) 10-20 μm
(c) 10-20 mm
(d) 1-2 mm
42. How much is the size of typical bacteria?
(a) 1-2 μm
(b) 10-20 μm
(c) 10-20 mm
(d) 1-2 mm
43. How much is the size of viruses?
(a) 0.02-0.2 μm
(b) 0.2-0.4 μm
(c) 0.02-0.04 μm
(d) None
44. What is a genomic DNA of bacteria?
(a) Circular DNA
(c) Both (a) and (b)
(b) Single stranded DNA
(d) ds DNA, linear
45. Where is the genetic material located in prokaryotes?
(a) Nucleus
(b) Enveloped by nuclear membrane
(c) Naked in cytoplasm
(d) None of these
46. What are plasmids?
(a) Naked genomic DNA
(c) Enveloped DNA
(b) Smaller DNA than genomic DNA
(d) None of these
47. Resistance to antibiotics is conferred by
(a) Plasmid DNA
(c) Both (a) and (b)
(b) Chromosome
(d) None of these
48. Which is the common organelles that are found in both eukaryotes and prokaryote?
(a) Lysosome
(b) Ribosome
(c) Vacuole
(d) Mitochondria
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Cell: The Unit of Life
49. What is a specialized differentiated form of cell membrane?
(a) Plasmid
(b) Nucleosome
(c) Mesosome
(d) All of these
50. Infoldings of cell membrane in prokaryotic is called
(a) Mesosomes
(b) Lysosomes
(c) Both (a) and (b)
(d) None of these
51. What is external to cell wall in a prokaryotic cell?
(a) Glycocalyx layer
(b) Plasma membrane
(c) Both (a) and (b)
(d) None of these
52. Select the incorrect statement:
(a) Glycocalyx differs in composition and thickness among different bacteria.
(b) All organism are made of cells or aggregates of cells.
(c) ER helps in synthesis of proteins, lipoproteins and glycogen.
(d) Cells of all living organisms have nuclues.
53. What is external to the plasma membrane in a prokaryotic cell like bacteria?
(a) Glycocalyx layer
(b) Cell wall
(c) Both (a) and (b)
(d) None of these
54. What is external to glycocalyx layer in prokaryotic cell like bacteria?
(a) Cell wall
(b) Plasma membrane
(c) Both
(d) None of these
55. What is external to plasma membrane and internal to glycocalyx layer?
(a) Capsule
(b) Cell wall
(c) Cellular matrix
(d) None of these
56. What is the basis of classification of bacteria’s into gram +ve or gram -ve?
(a) Cell wall
(b) Glycocalyx layer
(c) Plasma membrane
(d) All of these
57. A bacterial cell was taken and gram staining was done and observed that it did not take up
gram stain such a bacteria is known as
(a) Gram positive
(b) Gram negative
(c) Non-effective to gram stain
(d) None of these
58. Which of the following statement is not true?
(a) Response to gram stain is due to the cell envelop.
(b) The cell envelope act as a single protective unit.
(c) The glycocalyx layer is similar in all the bacteria.
(d) None of these
59. A loose sheath of glycocalyx layer is called
(a) Plasma membrane
(c) Slime layer
(b) Capsule
(d) Cell wall
60. What is a thick, tough, layer of glycocalyx known as?
(a) Slime layer
(b) Capsule
(c) Cell wall
(d) Cell envelope
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Cell: The Unit of Life8.9
61. Which of the following is not the function of cell wall?
(a) Interaction with outside world
(b) Provide structural support and shape
(c) Prevent from bursting and collapsing
(d) Exchange of nutrition takes place through it
62. Which of the following is a form of mesosome?
(a) Vesicles
(b) Tubules
(c) Lamellae
(d) All of these
63. Which of the following is a function of mesosome?
(a) Cell wall formation
(b) DNA replication and its distribution to daughter cells
(c) Both (a) and (b)
(d) None of these
64. Which of the following helps in respiration, secretion process,and increase the surface area for
enzymatic content?
(a) Plasma membrane
(b) Cell wall
(c) Mesosomes
(d) Glycocalyx layer
65. In which organisms the pigment containing chromatophores are found?
(a) Algae
(b) Cyanobacteria
(c) Green algae
(d) Amoeba
66. A thin, filamentous extension of cell wall required for a bacterial motility is called _________.
(a) Hook
(b) Flagella
(c) Tail
(d) Mesosome
67. Which of the following is not a part of bacteria flagellum?
(a) Filament
(b) Hook
(c) Basal body
(d) None
68. Of all the parts of flagellum, which one is the longest?
(a) Filament
(b) Hook
(c) Basal body
(b) Fimbriae
69. Which of the following surface structure of bacteria does not take part in motility?
(a) Flagella
(b) Pilli
(c) Fimbriae
(d) Both (b) and (c)
70. Which is the elongated tubular structure made of special protein on the surface of bacterial
cell?
(a) Flagella
(b) Fimbriae
(c) Pilli
(d) All of these
71. What is the small bristle like structures or fibres sprouting out of the cell?
(a) Flagella
(b) Fimbriae
(c) Pilli
(d) All of these
72. In prokaryotes, the ribosomes are associated with which structure of cell?
(a) Cell wall
(b) Mesosome
(c) Lysosomes
(d) Plasma membrane
73. What is the size of ribosomes?
(a) 10-20 μm
(b) 15-20 nm
(c) 10-20 nm
(d) 15-20 cm
74. In 70S prokaryotic ribosomes, what are the sub units present in them?
(a) 50S and 20S
(b) 50S and 30S
(c) 40S and 30S
(d) 60S and 30S
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Cell: The Unit of Life
75. A polysome is a chained structure of which organelle?
(a) Lysosome
(b) Mesosome
(c) Ribosome
(d) All of these
76. In polyribosome, the ribosomes attach to which RNA?
(a) m-RNA
(b) t-RNA
(c) r-RNA
(d) All of these
77. In what form, the reserve material in prokaryotic cells are stored in cytoplasm?
(a) Lysosome
(b) Mesosome
(c) Ribosome
(d) Inclusion bodies
78. Which of the following are not inclusion bodies?
(a) Phosphate granules
(b) Cyanophycean granules
(c) Glycogen granules
(d) Glucose granules
79. Gas vacuoles are found in
(a) Blue-green bacteria
(c) Green photosynthetic bacteria
(b) Purple bacteria
(d) All of these
80. Which of the following does not belong to eukaryote?
(a) Protists
(b) Bacteria
(c) Fungi
(d) All of these
81. In eukaryotic cells, why there is an extensive compartmentalization of cytoplasm?
(a) Due to the presence of fibres
(b) Due to the presence of so many organelles
(c) Due to the presence of membranous organelles
(d) All of these
82. The chemical studies on cell membrane that was deduced to its possible structure was mostly done
on which cells?
(a) WBC
(b) Human erythrocytes
(c) Platelets
(d) Cheek cells
83. In plasma membrane, the lipids have their polar heads facing
(a) Outer side
(b) Inner side
(c) In the middle
(d) Stable facing nowhere
84. The lipid component of plasma membrane will be mainly constituted of
(a) Glycolipids
(b) Glycogen
(c) Phosphoglycerides (d) All of these
85. Identify the A, B, C and D in this figure.
A
Integral
protein
B
C
D
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Cell: The Unit of Life8.11
(a)
(b)
(c)
(d)
A–Lipid bilayer, B–Protein, C–Sugar, D–Cholesterol
A–Protein, B–Lipid bilayer, C–Cholesterol, D–Sugar
A–Protein, B–Sugar, C–Lipid bilayer, D–Cholesterol
A–Cholesterol, B–Protein, C–Sugar, D–Lipid bilayer
86. Which of the following are not the component of plasma membrane?
(a) Sugar
(b) Protein
(c) Cholesterol
(d) None of these
87. What is the percentage of proteins and lipids in an RBC membrane respectively?
(a) 52%, 40%
(b) 50%, 40%
(c) 50%, 42%
(d) 52%, 42%
88. Which of the following membrane proteins lie on the surface of the cell?
(a) Integral proteins
(b) Peripheral proteins
(c) Both (a) and (b)
(d) Glycoproteins
89. Which of the following membrane proteins are partially or totally buried in cell membrane?
(a) Integral proteins
(b) Peripheral proteins
(c) Both (a) and (b)
(d) Glycoproteins
90. The fluid mosaic model was given by Singer and Nicolson in the year _________
(a) 1972
(b) 1976
(c) 1982
(d) 1986
91. The ability of proteins to move laterally within the membrane is measured as
(a) Mobility
(b) Flexibility
(c) Fluidity
(d) None of these
92. For what reason, the fluid nature of membrane is important?
(a) Cell growth
(b) Secretions
(c) Endocytosis
(d) All of these
93. The most important function of plasma membrane is that it
(a) Divides the cell
(b) Gives shape to the cell
(c) Transports the molecules across
(d) Both (a) and (b)
94. In which kind of transport, the molecules move across without the utilization of energy?
(a) Passive transport
(b) Osmosis
(c) Both (a) and (b)
(d) Active transport
95. Movement of water across the plasma membrane occurs by
(a) Passive transport (b) Osmosis
(c) Active transport
(d) All of these
96. In which kind of transport, the molecules will go against the concentration gradient?
(a) Passive transport
(b) Active transport
(c) Facilitated transport
(d) All of these
97. In which of the following does active transport take place?
(a) Pumps
(b) Carrier protein transport
(c) Ion channels
(d) Diffusion
98. The functions of cell wall in eukaryotic cells
(a) Give shape to cell
(c) Protects from infection
(b) Prevent from mechanical damage
(d) All of these
99. Which of the following organisms have cell wall made up of cellulose, galactans, mannans,
and minerals like calcium carbonates?
(a) Fungi
(b) Plants
(c) Algae
(d) All of these
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8.12
Cell: The Unit of Life
100. Which of the following organisms have cell wall made up of cellulose, hemicelluloses, pectins
and proteins?
(a) Fungi
(b) Plants
(c) Algae
(d) All of these
101. Which of the following wall is capable of growth in a plant cell?
(a) Primary wall
(b) Secondary wall
(c) Both (a) and (b)
(d) Middle lamella
102. What is the component of middle lamella that puts the different binds neighbouring cells together?
(a) Calcium phosphate
(b) Sodium pectate
(c) Calcium pectate
(d) Sodium phosphate
103. A structure that is traversing the middle lamella and connecting the cytoplasm of neighbouring
cells is called
(a) Primary wall junction
(b) Plasmodesmata
(c) Desmosomes
(d) Secondary wall
104. Identify the A, B, C, D and E in this figure.
A
B
C
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D
E
(a)A–Nuclear pore, B–Nucleus, C–Ribosome, D–Smooth endoplasmic reticulum, E–Rough
endoplasmic reticulum
(b)A–Rough endoplasmic reticulum, B–Nuclear pore, C–Ribosome, D–Smooth endoplasmic
reticulum, E–Nucleus
(c)A–Ribosome, B–Nuclear pore, C–Nucleus, D–Smooth endoplasmireticulum, E–Rough
endoplasmic reticulum
(d)A–Nucleus, B–Nuclear pore, C–Rough endoplasmic reticulum, D–Ribosome, E–Smooth
endoplasmic reticulum
105. How many of the following are not included in endomembrane system?
Endoplasmic Reticulum, Golgi complex, Lysosome, Mitochondria, Chloroplast, Vacuoles,
Peroxisomes
(a) 2
(b) 3
(c) 4
(d) 5
106. What is the network of tiny tubular structures scattered in cytoplasm as seen from electron
microscope?
(a) Golgi complex
(b) Microtubules
(c) Endoplasmic reticulum
(d) Mitochondria
Cell: The Unit of Life8.13
107. What indicates A in the figure?
A
(a) Cisternae
(b) Nuclear pore
(c) Crista
(d) Thylakoid
108. Which side in a cell does luminal and extra luminal compartments are situated respectively?
(a) Cytoplasm, inside ER
(b) Inside ER, cytoplasm
(c) cytoplasm, plasma membrane
(d) Nucleus, cytoplasm
109. Rough endoplasmic reticulum is called so due to the presence of
(a) Lysosome
(b) Golgi granules
(c) Ribosomes
(d) Protein granules
110. RER is frequently seen in cells associated with frequent synthesis and secretion of
(a) Lipid
(b) Glucose
(c) Protein
(d) All of these
111. SER is frequently associated with the synthesis of
(a) Lipid
(b) Glucose
(c) Protein
112. What is the diameter of cisternae?
(a) 0.5 to 1 μm
(b) 0.5 to 1 mm
(c) 0.5 to 2 μm
(d) All of these
(d) 5 to 11 μm
113. Cis and trans face of golgi body are ____ and ____ respectively.
(a) Convex, Concave
(b) Concave, Convex
(c) Convex, Convex
(d) Concave, Concave
114. Which face of golgi apparatus receives the materials packaged in the form of vesicles from
the ER?
(a) Cis
(b) Trans
(c)
Both (a) and (b)
(d) None of these
115. Golgi apparatus is an important site for the formation of
(a) Protein and lipids
(b) Glycoproteins and glycolipids
(c) Carbohydrates and proteins
(d) Glucose and lipids
116. Which structure is formed by the process of packaging in golgi apparatus?
(a) Ribosomes
(b) Protein granules (c) Lysosomes
(d) Centrosomes
117. Which of the following are not hydrolytic enzyme?
(a) Lipase
(b) Proteases
(c) Carbohydrases
(d) Ligases
118. Hydrolytic enzymes are activated at _______ pH.
(a) Acidic
(b) Neutral
(c) 0 basic
(d) All of these
119. Which of the following cannot be digested by hydrolytic enzymes?
(a) DNA
(b) Immunoglobulins
(c) Glucose
(d) Insulin
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Cell: The Unit of Life
120. Which of the following are not the contents of vacuole?
(a) Water
(b) Enzymes
(c) Sap
(d) Excretory products
121. Which of the following is correct about vacoule?
(a) Vacuole contain water sap, excretory product and other material not useful for the cell .
(b) In plant cell the vacuole can occupy up to 90 per cent of the volume of the cell.
(c) The vacuole is bounded by tonoplast.
(d) All of these
122. Tonoplast membrane is important for
(a) Transporting ions along concentration gradient.
(b) Transporting ions against concentration gradient.
(c) Providing rigidity to structure
(d) All of these
123. The contractile vacuole present in amoeba is useful for
(a) Ingestion
(b) Locomotion
(c) Both (a) and (b)
(d) Excretion
124. The amount or number of mitochondria in a cell depends on
(a) Anatomical structure of cell
(b) Size of the cell
(c) Colour and contour of the cell
(d) Physiological activity of cell
125. What is the main function of cristae?
(a) To hold the vesicles formed
(c) Increase the density of organelle
(b) Increase the surface area
(d) All of these
126. What kind of ribosome is seen in mitochondria?
(a) 80S
(b) 70S
(c) Both (a) and (b)
(d) None of these
127. How is a new mitochondria formed by the pre-existing ones?
(a) Mitosis
(b) Fission
(c) Conjugation
(d) Budding
128. What does a chloroplast contain?
(a) Chlorophyll
(b) Carotenoid
(c) Both (a) and (b)
(d) Anthocyanin
129. Select the incorrect pair from the following:
(a) Leucoplast-Carotene
(c) Elaioplast-Oils
(b) Amyloplast-Starch
(d) Aleuroplasts–Proteins
130. In 30S and 40S ribosomes, ‘S’ stands for
(a) Sub-unit
(b) Svedberg’s unit
(c) Single unit
131. Identify A, B, C, D and E in the given figure.
B
D
E
A
C
(d) Size
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Cell: The Unit of Life8.15
(a)
(b)
(c)
(d)
A–Matrix, B–Outer membrane, C–Crista, D–Inner membrane, E–Inner-membrane space
A–Crista, B–Outer membrane, C–Inner-membrane space, D–Inner membrane, E–Matrix
A–Matrix, B–Inner membrane, C–Inner-membrane space, D–Crista, E–Outer membrane
A–Inner-membrane space, B–Outer membrane, C–Matrix, D–Crista, E–Inner membrane
132. What kind of ribosome is present in mitochondria?
(a) 70S
(b) 80S
(c) 40S
(d) 60S
133. Plastids are found in
(a) All plant cells
(d) Both (a) and (c)
(b) All animal cells
(c) Euglenoids
134. Based on the type of pigments, the plastid can be classified into how many types?
(a) 1
(b) 2
(c) 3
(d) 4
135. Which of the following is a type of plastid?
(a) Chloroplast
(b) Chromoplast
(d) Leucoplast
(d) All of these
136. Select the correct matching:
Column I
Column II
(Type of leucoplast)
(Stored food)
A. Amyloplast
1. Oil and fat
B. Elaioplast
2. Protein
C. Aleuroplasts
3. Carbohydrate
(a) A–3, B–1, C–2
(b) A–1, B–2, C–3
(c) A–3, B–2, C–1
(d) A–2, B–3, C–1
137. Select the incorrect statement:
(a) The chloroplast contains chlorophyll and carotenoid pigments.
(b) Chromoplast contains water soluble carotenoid pigments like carotene, xanthophylls.
(c) Plastid is easily observed under microscope.
(d) Chloroplast is a double membrane bound organelle.
138. The number of chloroplast in alga chlamydomonas is
(a) 2
(b) 1
(c) 20 to 40
(d) 5 to 10
139. Identify A to F in the given figure.
C
E
B
F
D
A
(a) A–Outer membrane, B–Thylakoid, C–Stroma lamella, D–Inner membrane, E–Granum,
F–Stroma
(b) A–Thylakoid, B–Outer membrane, C–Stroma lamella, D–Inner membrane, E–Stroma,
F–Granum
(c) A–Stroma, B–Granum, C–Outer membrane, D–Stroma lamella, E–Inner membrane,
F–Thylakoid
(d) A–Inner membrane, B–Thylakoid, C–Stroma lamella, D–Outer membrane, E–Stroma,
F–Granum
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8.16
Cell: The Unit of Life
140. Number of chloroplast present in a mesophyll cell
(a) 5–10
(b) 10–15
(c) 20–40
(d) > 100
141. Chlorophyll pigments are present in
(a) Thylakoid
(c) Outer membrane
(b) Stroma
(d) Inner membrane
142. Ribosomes are the granular structure first observed under the electron microscope as dense
particle by which scientist
(a) Robert Brown (1831)
(b) George Palade (1953)
(c) Camillo Golgi (1898)
(d) Singer and Nicolson (1972)
143. The types of ribosome present in eukaryote cell is
(a) 70S
(b) 80S
(c) Both (a) and (b)
(d) None of these
144. An elaborate network of filamentous proteinaceous structures present in the cytoplasm is
­collectively known as
(a) Cilia
(b) Flagella
(c) Cytoskeleton
(d) ER
145. Cytoskeleton helps in
(a) Mechanical support to cell
(c) Maintenance of shape of cell
(b) Providing mobility to cell
(d) All of these
146. The central part of the proximal region of the centriole is also proteinaceous and is called
(a) Spokes
(b) Doublet
(c) Hub
(d) Linkers
147. Find out the incorrect statement:
(a) Centrioles forms basal bodies of cilia or flagella.
(b) Centriole gives rise to spindle fibres at the time of cell division in animal cell.
(c) Centrosome is an organelle usually containing two cylindrical structures called centrioles.
(d) Peripheral fibril of centriole is doublet.
148. Identify A, B, C, D, E and F given in the figure.
B
C
A
F
D
E
(a)A–Interdoublet bridge, B–Peripheral microtubules (doublets), C–Central microtubule, D–
Plasma membrane, E–Central bridge, F–Radial spoke
(b)A–Central sheath, B–Radial spoke, C–Interdoublet bridge, D–Central microtubule, E–
Plasma membrane, F–Peripheral microtubules (doublets)
(c)A–Central sheath, B–Plasma membrane, C–Peripheral microtubules (doublets), D–Radial
spoke, E–Central microtubule, F–Interdoublet bridge
(d)A–Plasma membrane, B–Radial spoke, C–Peripheral microtubules (doublets), D–Central
sheath, E–Central microtubule, F–Interdoublet bridge
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Cell: The Unit of Life8.17
149. Select the incorrect statement:
(a) Cilia and flagella are hair-like outgrowths of the cell membrane.
(b) Cilia causes the movement of either the cell or the surrounding medium.
(c) Bacterial flagella are structurally similar to eukaryotic flagella.
(d) Flagella is responsible for cell movement.
150. Which of the following is true about the internal structure of axoneme?
(a)Central sheath is connected to one of the tubule of each peripheral doublets by a radial
spoke.
(b) Axoneme is not covered by plasma membrane at all.
(c) Then are only and radial spokes are found.
(d) Peripheral doublets are not connected with each other.
151. Both cilium and flagellum emerges from centriole like structure which is called
(a) Basal granules
(b) Basal bodies
(c) Basal lamina
(d) Basal ganglion
152. The name ‘chromatin’ was given by
(a) Robert Brown
(b) Fleming
(c) Schwann
(d) Ramchandran
153. The outer membrane of nucleus remains continuous with which cell organelle
(a) ER
(b) Golgi body
(c) Lysosome
(d) All of these
154. The perinuclear space is about
(a) 1–5 nm
(b) 5–10 nm
(c) 10–50 nm
155. The following cells are without nucleus
(a) Erythrocytes of many mammals
(c) Bacterial cell
(b) Sieve tube cells of vascular plant
(d) All of these
156. The site of active ribosomal RNA synthesis is
(a) Nucleolus
(b) Mitochondria
(c) Cytoplasm
157. Chromatin contains
(a) DNA
(c) Some non-histone protein and RNA
(d) > 100 nm
(d) All of these
(b) Basic protein histone
(d) All of these
158. How long a DNA is distributed in our forty six chromosomes?
(a) 1 metre
(b) 3 metre
(c) 2 metre
(d) 4 metre
159. Based on the position of centromere, the chromosomes are classified into how many types?
(a) 1
(b) 3
(c) 2
(d) 4
160. Identify A, B, C and D given in the figure.
A
B
C
D
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8.18
Cell: The Unit of Life
(a)
(b)
(c)
(d)
A–Nucleoplasm, B–Nucleolus, C–Nuclear pore, D–Nuclear membrane
A–Nucleolus, B–Nucleoplasm, C–Nuclear membrane, D–Nuclear pore
A–Nuclear pore, B–Nuclear membrane, C–Nucleoplasm, D–Nucleolus
A–Nuclear membrane, B–Nucleoplasm, C–Nuclear pore, D–Nuclear membrane
161. Match the column:
Column I
A. Metacentric chromosomal
B. Sub-metacentric
C. Acrocentric
D. Telocentric
(a) A–1, B–2, C–3, D–4
(c) A–1, B–2, C–4, D–3
Column II
1. Middle centromere
2. Centromere slightly way from middle
3. Centromere close to its end
4. Terminal centromere
(b) A–2, B–1, C–3, D–4
(d) A–4, B–3, C–2, D–1
162. The following diagram shows a chromosome. Label A represents:
A
(a) Chromosomes
(c) Centromere
(b) Kinetichore
(d) Acrocentric
163. Select the incorrect statement:
(a) Micro bodies contain various enzyme and are present in both plant and animal cells.
(b)Few chromosomes have non-staining secondary constriction of constant location. This
give the appearance of a small fragment called the satellite.
(c)Nuclei are spherical structures present in nucleoplasm and it is a site for ribosomal RNA
synthesis.
(d)Every chromosome essentially has a secondary constriction or the centromere on the sides
of which disc shaped structures called kinetochores are present.
164. Identify A, B, C, D, E, F and G given in the figure.
A
E
C
D
B
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Cell: The Unit of Life8.19
(a)
(b)
(c)
(d)
A–Satellite, B–Secondary constriction, C–Centromere, D–Long arm, E–Short arm
A–Secondary constriction, B–Satellite, C–Long arm, D–Centromere, E–Short arm
A–Centromere, B–Satellite, C–Long arm, D–Short arm, E–Secondary constriction
A–Satellite, B–Short arm, C–Long arm, D–Centromere, E–Secondary constriction
Assertion and Reason Questions
Read the assertion and reason carefully to mark the correct option out of the options given
below:
(a) If both the assertion and the reason are true and the reason is a correct explanation of the
assertion.
(b) If both the assertion and reason are true but the reason is not a correct explanation of the
assertion.
(c) If the assertion is true but the reason is false.
(d) If both the assertion and reason are false.
165. Assertion: Bacterial cells may be motile or non motile.
Reason: Bacterial cells may or may not posses cilia.
166. Assertion: Bacterial cell walls are not like the plant cell.
Reason: Bacterial cell wall is not made up of cellulose.
167. Assertion: Membrane transport occurs through the carrier proteins.
Reason: The transport carried by carrier proteins is always passive.
168. Assertion: Cristae are the infoldings of outer membrane of mitochondria.
Reason: Electron transport occurs in mitochondrial stroma.
169. Assertion: Eukaryotic cells have more DNA than prokaryotic cells.
Reason: Eukaryotes are genetically more complex than prokaryotes.
170. Assertion: Schleiden and Schwann were the first to observe the cells and to put forward the
cell theory.
Reason: The cells are always living unit.
171. Assertion: In animal cells, the lipid-like steroidal hormones are synthesized in SER.
Reason: The smooth ER is the major site for synthesis of lipid.
172. Assertion: Lysosomes help in photorespiration.
Reason: Lysosome have basic enzyme.
173. Assertion: Mitochondria is known as the power house of cell.
Reason: ATP production takes place here.
174. Assertion: DNA is associated with proteins.
Reason: DNA binds around histone protein that form a pool and the entire structure is called
a nucleosome.
175. Assertion: Cell wall is not found in animal cell.
Reason: Animal cells are covered by cell membrane.
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8.20
Cell: The Unit of Life
176. Assertion: It is important that the organisms should have cell.
Reason: A cell keeps its chemical composition steady within its boundary.
177. Assertion: The number of cells in a multicellular organism is inversely proportional to the
size of body.
Reason: All the cells in the biological world are of same size.
178. Assertion: A cell membrane shows fluid behaviour.
Reason: A membrane is a mosaic or composite of diverse lipids and proteins.
179. Assertion: Mitochondria and chloroplasts are semi-autonomous organelles.
Reason: Mitocondria and chloroplast are devoid of ribosomes.
180. Assertion: Cell is fundamental structural and functional unit of life.
Reason: Anything less than a complete structure of a cell does not ensure independent life.
181. Assertion: Na+/K+ pump is an active transport.
Reason: Na+/K+ pump utilize energy of ATP
182. Assertion: Calcium pectate is referred as plant cement.
Reason: It glues neighbouring plant cells together.
183. Assertion: Cell wall help in cell to cell interaction.
Reason: Cell wall provide barrier to undesirable macromolecules.
184. Assertion: Lateral movement of protein lipid bilayer of plasma membrane is possible
Reason: Lipid bilayer is of quasi fluid nature.
185. Assertion: Lysosomes posses’ acidic pH.
Reason: Lysosomes are rich in hydrolytic enzymes which are activated by acidic pH.
186. Assertion: Mitochondria are the sites of aerobic respiration
Reason: Mitochondria contain 80s type of ribosomes.
187. Assertion: Carbohydrate synthesis occurs in stroma of chloroplast.
Reason: Enzyme required for carbohydrate synthesis present in stroma of chloroplast.
188. Assertion: Prokaryotic and Eukaryotic flagella are structurally similar.
Reason: Cilia are longer than flagella.
189. Assertion: ‘s’ in ‘80s’ represent sedimentation coefficient
Reason: Sedimentation coefficient is direct measure of density and size of ribosome.
190. Assertion: Lysosomes have acidic pH.
Reason: It is maintain by pumping proton into interior of lysosome.
191. Assertion: Mitochondria and chloroplast are semi-autonomous cell organelle.
Reason: Both contain DNA, RNA and ribosome.
192. Assertion: Unicellular organisms are capable of independent existence.
Reason: Single cell in these organisms can perform essential function of life.
193. Assertion: Cell is fundamental structural and functional unit of all living organisms.
Reason: A complete structure of cell does not ensure independent life.
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Cell: The Unit of Life8.21
194. Assertion: Cell wall is unique character of the plant cells
Reason: Cell membrane is only found in animal cells.
195. Assertion: Cells have different shapes
Reason: Shapes of cells vary with function they perform
196. Assertion: Genetic material in prokaryotic is said to be naked.
Reason: Genetic material in prokaryotic is not associated with histone proteins and absence
of nuclear envelope around it.
197. Assertion: Certain bacteria possess resistance to antibiotic.
Reason: Certain bacteria possess plasmid
198. Assertion: Mesosome in bacteria help in respiration
Reason: Mesosome contain respiratory enzyme
199. Assertion: Polysomes are found in prokaryote as well as eukaryotes
Reason: Polysomes use to produce more protein replica from single mRNA.
200. Assertion: Ribosomes are found in both prokaryote and eukaryotes.
Reason: Ribosomes are protein factories which is required for both types of cells.
201. Assertion: In lipid bilayer in membrane, lipid are arranged with polar head towards outer side
and the hydrophobic tail towards the inner part
Reason: This ensures that the nonpolar tail of saturated hydrocarbon is protected from
aqueous environment.
202. Assertion: Integral proteins can’t be extracted easily from plasma membrane
Reason: Integral proteins are partially or totally embedded in the membrane.
203. Assertion: RER is rough.
Reason: This endoplasmic reticulum bears ribosomes.
204. Assertion: Golgi apparatus remain in close association with the endoplasmic reticulum.
Reason: Material to be packaged in form of vesicle from the ER fuse with the cis face of the
Golgi apparatus and move towards maturing face.
205. Assertion: Lysosomes are capable of digesting carbohydrate, protein, lipids and nucleic acids.
Reason: Lysosomes contain almost all type of hydrolytic enzymes.
206. Assertion: Some ion concentration is higher in the vacuole than in the cytoplasm of plant cell.
Reason: In the plant tonoplast facilitate the transport of some ions against concentration
gradient into the vacuole.
207. Assertion: Chloroplast can synthesize proteins
Reason: Chloroplast contains ribosomes.
208. Assertion: Ribosomes were discovered after discovery of electron microscope.
Reason: Ribosomes can be observed by electron-microscope.
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8.22
Cell: The Unit of Life
previous year questions
1. Identify the components labelled A, B, C and D in the diagram below from the list (i) to (vii)
given along with:
C
A
D
B
Components:
(i) Cristae of mitochondria
(iii) Cytoplasm
(v) Rough endoplasmic reticulum
(vii) Cell vacuole
The correct components are:
A
B
(a)
(v)
(iv)
(b)
(i)
(iv)
(c)
(vi)
(v)
(d)
(v)
(i)
C
(viii)
(viii)
(iv)
(iii)
(ii) Inner membrane of mitochondria
(iv) Smooth endoplasmic reticulum
(vi) Mitochondrial matrix
(viii) Nucleus
[AIPMT MAINS 2010]
D
(iii)
(vi)
(vii)
(ii)
2. Membrane-bound organelles are absent in
(a) Saccharomyces
(c) Chlamydomonas
[AIPMT PRE 2010]
(b) Streptococcus
(d) Plasmodium
3. Which one of the following has its own DNA?
(b) Dictyosome
(a) Mitochondria
(d) Peroxisome
(c) Lysosome
4. The main arena of various types of activities of a cell is
(a) Plasma membrane
(b) Mitochondrion
(c) Cytoplasm
(d) Nucleus
5. The plasma membrane consists mainly of
(a) Phospholipids embedded in a protein bilayer.
(b) Proteins embedded in a phospholipid bilayer.
[AIPMT PRE 2010]
[AIPMT PRE 2010]
[AIPMT PRE 2010]
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Cell: The Unit of Life8.23
(c) Proteins embedded in a polymer of glucose molecules.
(d) Proteins embedded in a carbohydrate bilayer.
6. The figure below shows the structure of a mitochondrion with its four parts labelled as A, B,
C and D. Identify the parts:
D
B
A
(a)
(b)
(c)
(d)
C
[AIPMT MAINS 2011]
D (outer membrane) – gives rise to inner membrane by splitting
B (inner membrane) – forms infolding called cristae
C (crista) – possesses single circular DNA molecule and ribosomes
A (matrix) – major site for respiratory chain enzymes
7. In mitochondria, protons accumulate in the
(a) Outer membrane
(c) Intermembrane space
[AIPMT MAINS 2011]
(b) Inner membrane
(d) Matrix
w
8. Which one of the following is not considered as a part of the endomembrane system?
[AIPMT MAINS 2011]
(a) Golgi complex
(b) Peroxisome
(c) Vacuole
(d) Lysosome
9. Which one of the following organisms is not an example of eukaryotic cells?
[AIPMT PRE 2011]
(a) Escherichia coli
(b) Euglena viridis
(c) Amoeba proteus
(d) Paramecium caudatum
10. The important site for the formation of glycoproteins and glycolipids is
[AIPMT PRE 2011]
(a) Golgi apparatus
(b) Plastid
(c) Lysosome
(d) Vacuole
11. In eubacteria, a cellular component that resembles eukaryotic cells is
[AIPMT PRE 2011]
(a) Nucleus
(b) Ribosomes
(c) Cell wall
(d) Plasma membrane
12. Peptide synthesis inside a cell takes place in
(a) Mitochondria
(c) Ribosomes
[AIPMT PRE 2011]
(b) Chromoplast
(d) Chloroplast
8.24
Cell: The Unit of Life
13. Which one of the following cellular parts is correctly described?
(a) Centrioles
(b) Ribosomes
(c) Lysosomes
(d) Thylakoids
[AIPMT MAINS 2012]
−
Sites for active RNA synthesis
−Those on chloroplasts are larger (80S) while
those in the cytoplasm are smaller (70S)
−
Optimally active at a pH of about 8.5
−Flattened membranous sacs forming the grana
of chloroplasts
14. Which one of the following structures is an organelle within an organelle?
[AIPMT MAINS 2012]
(a) Peroxisome
(b) ER
(c) Mesosome
(d) Ribosome
15. Ribosomal RNA is actively synthesized in
(a) Lysosomes
(c) Nucleoplasm
[AIPMT PRE 2012]
(b) Nucleolus
(d) Ribosomes
16. What is true about ribosomes?
[AIPMT PRE 2012]
(a) The prokaryotic ribosomes are 80S, where ‘S’ stands for sedimentation coefficient.
(b) These are composed of ribonucleic acid and proteins.
(c) These are found only in eurkaryotic cells.
(d) These are self-splicing introns of some RNAs.
17. Nuclear membrane is absent in
(a) Penicillium
(b) Agaricus
(c) Volvox
[AIPMT PRE 2012]
(d) Nostoc
18. Select the correct statement from the following regarding cell membrane.
[AIPMT PRE 2012]
(a) NA+ and K+ ions move across cell membrane by passive transport.
(b) Proteins make up 60 to 70 per cent of the cell membrane.
(c) Lipids are arranged in a bilayer with polar heads towards the inner part.
(d) Fluid mosaic model of cell membrane was proposed by Singer and Nicolson.
19. A major site for synthesis of lipids is
(a) RER
(c) Symplast
[AIPMT 2013]
(b) SER
(d) Nucleoplasm
20. The Golgi complex plays a major role
[AIPMT 2013]
(a) In trapping the light and transforming it into chemical energy.
(b) In digesting proteins and carbohydrates.
(c) As energy transferring organelles.
(d) In post translational modification of proteins and glycosidation of lipids.
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Cell: The Unit of Life8.25
21. Which one of the following organelle in the figure correctly matches with its function?
Nucleus
Rough endoplasmic
reticulum
Golgi apparatus
(a)
(b)
(c)
(d)
[AIPMT 2013]
Rough endoplasmic reticulum, formation of glycoproteins
Golgi apparatus, protein synthesis
Golgi apparatus, formation of glycolipids
Rough endoplasmic reticulum, protein synthesis
22. Which structures perform the function of mitochondria in bacteria?
(a) Nucleoid
(b) Ribosomes
(c) Cell wall
(d) Mesosomes
[AIPMT 2014]
23. The solid linear cytosketetal elements having a diameter of 6 nm and made up of a single type
of monomer are known as
[AIPMT 2014]
(a) Microtubules
(b) Microfilaments
(c) Intermediate filaments
(d) Lamins
24. Match the following and select the correct answer:
[AIPMT 2014]
(A) Centriole
(1) Infoldings in mitochondria
(B) Chlorophyll
(2) Thylakoids
(C) Cristae
(D) Ribozymes
(3) Nucleic acids
(4) Basal body cilia or flagella
(a) A : 4, B : 2, C : 1, D : 3
(c) A : 1, B : 3, C : 2, D : 4
(b) A : 1, B : 2, C : 4, D : 3
(d) A : 4, B : 3, C : 1, D : 2
25. The motile bacteria are able to move by
(a) Fimbriae
(c) Cilia
[AIPMT 2014]
(b) Flagella
(d) Pili
26. The chromosomes in which the centromere is situated close to one end are
(a) Metacentric
(b) Acrocentric
(c) Telocentric (d) Sub-metacentric
[AIPMT 2015]
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8.26
Cell: The Unit of Life
27. Nuclear envelope is a derivative of
(a) Smooth endoplasmic reticulum
(c) Microtubules
(b) Membrane of Golgi complex
(d) Rough endoplasmic reticulum
28. The structures that are formed by the stacking of organized flattened membranous sacs in the
chloroplast are [AIPMT 2015]
(a) Cristae
(b) Grana
(c) Stroma lamellae
(d) Stroma
29. Select the correct matching in the following pairs:
(a) Smooth ER
Oxidation of phospholipids
(b) Smooth ER
Synthesis of lipids
(c) Rough ER
Synthesis of glycogen
(d) Rough ER
Oxidation of fatty acid
[AIPMT 2015]
30. True nucleus is absent in
(a) Anabaena
(c) Vaucheria
[AIPMT 2015]
(b) Mucor
(d) Volvox
31. Which one of the following is not an inclusion body found in prokaryotes?
[AIPMT 2015]
(a) Phosphate granule
(c) Glycogen granule
(b) Cyanophycean granule
(d) Polysome
32. DNA is not present in
(a) Chloroplast (c) Nucleus (b) Ribosomes
(d) Mitochondria
33. Which of the following are not membrane-bound?
(a) Ribosomes
(b) Lysosomes
(c) Mesosomes
(d) Vacuoles
34. Which of the following structures is not found in a prokaryotic cell?
(a) Ribosome
(b) Mesosome
(c) Plasma membrane
(d) Nuclear envelope
[RE-AIPMT 2015]
[RE-AIPMT 2015]
35. The structures that help some bacteria to attach to rocks and/or host tissues are
[RE-AIPMT 2015]
(a) Fimbriae
(b) Mesosomes
(c) Holdfast
(d) Rhizoids
36. Match the columns and identify the correct option.
Column I
Column II
(a) Thylakoids
(i) Disc-shaped sacs in Golgi apparatus
(b) Cristae
(ii) Condensed structure of DNA
(c) Cisternae
(iii) Flat membranous sacs in stroma
(d) Chromatic
(iv) Infoldings in mitochondria
[RE-AIPMT 2015]
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Cell: The Unit of Life8.27
(a)
(b)
(c)
(d)
(a)
(iii)
(iii)
(iii)
(iv)
(b)
(iv)
(i)
(iv)
(iii)
(c)
(i)
(iv)
(ii)
(i)
(d)
(ii)
(ii)
(i)
(ii)
37. Cellular organelles with membranes are
(a) Chromosomes, ribosomes and endoplasmic reticulum
(b) Endoplasmic reticulum, ribosomes and nuclei
(c) Lysosomes, golgi apparatus and mitochondria
(d) Nuclei, ribosomes and mitochondria
[RE-AIPMT 2015]
38. Mitochondria and chloroplast are:
[NEET - I, 2016]
(i) Semi-autonomous organelles.
(ii)Formed by division of pre-existing organelles and they contain DNA but lack protein
synthesizing machinery.
Which one of the following options is correct?
(a) Both (i) and (ii) are correct
(b) (ii) is true and (i) is false
(c) (i) is true and (ii) is false
(d) Both (i) and (ii) are false
39. Microtubules are the constituents of:
(a) Cilia, Flagella and Peroxisomes
(b) Spindle fibres, Centrioles and Cilia
(c) Centrioles, Spindle fibres and Chromatin
(d) Centrosome, Nucleosome and Centrioles
[NEET - I, 2016]
40. A complex of ribosome attached to a single strand of RNA is known as:
(a) Polysome
(b) Polymer
(c) Polypeptide
(d) Okazaki fragment
[NEET - I, 2016]
41. Which one of the following cell organelles is enclosed by a single membrane?
[NEET - I, 2016]
(a) Mitochondria
(b) Chloroplasts
(c) Lysosomes
(d) Nuclei
42. Water soluble pigments found in plant cell vacuoles are:
(a) Xanthophylls
(b) Chlorophylls
(c) Carotenoids
(d) Anthocyanins
[NEET - I, 2016]
43. Select the mismatch
(a) Large central vacuoles – Animal cells
(b) Protists-Eukaryotes
(c) Methanogens-Prokaryotes
(d) Gas vacuoles-Green bacteria
[NEET - II, 2016]
44. Select he wrong statement.
(a) Pili and fimbriae are mainly involved in monthly of bacteria cells
(b) Cyanobacteria lack flagellated cells
(c) Mycoplasma is a wall-less microorganism
(d) Bacterial cell wall is made up of peptidoglycan
[NEET - II, 2016]
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8.28
Cell: The Unit of Life
45. A cell organelle containing hydrolytic enzymes is
(a) Microsome
(b) Ribosome
(c) Mesosome
(d) Lysosome
[NEET - II, 2016]
NCERT Exemplar Questions
1. A common characteristic feature of plant sieve tube cells and most of the mammalian
­erythrocytes is
(a) Absence of mitochondria
(b) Presence of cell wall
(c) Presence of haemoglobin
(d) Absence of nucleus
2. Select one which is not true for ribosome
(a) Made of two sub–units
(c) May attach to mRNA
(b) Form polysome
(d) Have no role in protein synthesis.
3. Which one of these is not a eukaryote?
(a) Euglena
(c) Spirogyra
(b) Anabena
(d) Agaricus.
4. Which of the following dyes is not used for staining chromosomes?
(a) Basic Fuchsin
(b) Safranin
(c) Methylene blue
(d) Carmine
5. Different cells have different sizes. Arrange the following cells in an ascending order of their
size. Choose the correct option among the followings:
(i) Mycoplasma (ii) Ostrich eggs
(iii) Human RBCs
(iv) Bacteria
Options:
(a) (i), (iv), (iii) and (ii)
(b) (i), (ii), (iii) and (iv)
(c) (ii), (i), (iii) and (iv)
(d) (iii), (ii), (i) and (iv)
6. Which of the following features is common to prokaryotes and many eukaryotes?
(a) Chromosomes are present
(b) Cell wall is present
(c) Nuclear membrane is present
(d) Membrane bound sub–cellular organelles are present.
7. Who proposed the fluid mosaic model of plasma membrane?
(a) Camillo Golgi
(b) Schleiden and Schwann
(c) Singer and Nicolson
(d) Robert Brown
8. Which of the following statements is true for secretory cells?
(a) Golgi apparatus is absent.
(b) Rough Endoplasmic Reticulum (RER) is easily observed in the cell.
(c) Only Smooth Endoplasmic Reticulum (SER) is present.
(d) Secretory granules are formed in nucleus.
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Cell: The Unit of Life8.29
9. What is a tonoplast?
(a) Outer membrane of mitochondria.
(b) Inner membrane of chloroplast.
(c) Membrane boundary of the vacuole of plant cells.
(d) Cell membrane of plant cell.
10. Which of the following is not true of a eukaryotic cell?
(a) Cell wall is made up of peptidoglycans.
(b) It has 80 S type of ribosome present cytoplasm.
(c) Mitochondria contain circular DNA.
(d) Membrane bound organelles are present.
11. Which of the following statements is not true for plasma membrane?
(a) It is present in both plant and animal cells.
(b) Lipid is present as a bilayer in it.
(c) Proteins are present in integrated as well as loosely associated with the lipid bilayer.
(d) Carbohydrate is never found in it.
12. Plastid differs from mitochondria on the basis of one of the following features. Mark the right
answer.
(a) The presence of two layers of membrane
(b) The presence of ribosome
(c) The presence of thylakoids
(d) The presence of DNA
13. Which of the following is not a function of cytoskeleton in a cell?
(a) Intracellular transport
(b) Maintenance of cell shape and structure
(c) Support of the organelles
(d) Cell motility
14. The stain used to visualize mitochondria is
(a) Fast green
(b) Safranin
(c) Acetocarmine
(d) Janus green
Answer Keys
Practice Questions
1. (d)
2. (d)
3. (b)
4. (a)
5. (c)
6. (a)
7. (b)
8. (b)
9. (b) 10. (c)
11. (b) 12. (c) 13. (a) 14. (d) 15. (d) 16. (c) 17. (d) 18. (a) 19. (b) 20. (c)
21. (a) 22. (b) 23. (b) 24. (d) 25. (a) 26. (d) 27. (b) 28. (d) 29. (b) 30. (b)
31. (b) 32. (a) 33. (c) 34. (d) 35. (a) 36. (d) 37. (c) 38. (d) 39. (b) 40. (d)
41. (b) 42. (a) 43. (a) 44. (a) 45. (c) 46. (b) 47. (a) 48. (b) 49. (c) 50. (a)
51. (a) 52. (d) 53. (c) 54. (d) 55. (b) 56. (d) 57. (b) 58. (c) 59. (c) 60. (b)
61. (d) 62. (d) 63. (c) 64. (c) 65. (b) 66. (b) 67. (d) 68. (a) 69. (d) 70. (c)
71. (b) 72. (d) 73. (b) 74. (b) 75. (c) 76. (a) 77. (d) 78. (d) 79. (d) 80. (b)
81. (c) 82. (b) 83. (a) 84. (c) 85. (a) 86. (d) 87. (a) 88. (b) 89. (a) 90. (a)
91. (c) 92. (d) 93. (c) 94. (c) 95. (b) 96. (b) 97. (a) 98. (d) 99. (c) 100. (b)
101. (a) 102. (c) 103. (b) 104. (d) 105. (b) 106. (c) 107.(a) 108. (b) 109. (c) 110. (c)
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111. (a)
121. (d)
131. (a)
141. (a)
151. (b)
161. (a)
Cell: The Unit of Life
112. (a)
122. (b)
132. (a)
142. (b)
152. (b)
162. (b)
113. (a)
123. (d)
133. (d)
143. (c)
153. (a)
163. (d)
114. (a)
124. (d)
134. (c)
144. (c)
154. (c)
164. (a)
115. (b)
125. (b)
135. (d)
145. (d)
155. (d)
116. (c)
126. (b)
136. (a)
146. (c)
156. (a)
117. (d)
127. (b)
137. (b)
147. (d)
157. (d)
118. (a)
128. (c)
138. (b)
148. (c)
158. (c)
119. (c)
129. (a)
139. (c)
149. (c)
159. (d)
120. (b)
130. (b)
140. (c)
150. (a)
160. (a)
172. (d)
182. (a)
192. (a)
202. (a)
173. (a)
183. (b)
193. (c)
203. (a)
174. (a)
184. (a)
194. (c)
204. (a)
8. (b)
18. (d)
28. (b)
38. (c)
9. (a)
19. (b)
29. (b)
39. (b)
10. (a)
20. (d)
30. (a)
40. (a)
8. (b)
9. (c)
10. (a)
Assertion and Reason Questions
165. (c)
175. (a)
185. (a)
195. (a)
205. (a)
166. (a)
176. (a)
186. (c)
196. (a)
206. (a)
167. (c)
177. (d)
187. (a)
197. (a)
207. (a)
168. (d)
178. (a)
188. (d)
198. (a)
208. (a)
169. (a)
179. (c)
189. (c)
199. (a)
170. (d)
180. (a)
190. (a)
200. (a)
171. (b)
181. (b)
191. (a)
201. (a)
Previous Year Questions
1. (a)
11. (d)
21. (d)
31. (d)
41. (c)
2. (b)
12. (c)
22. (d)
32. (b)
42. (d)
3. (a)
13. (d)
23. (b)
33. (a)
43. (a)
4. (c)
14. (d)
24. (a)
34. (d)
44. (a)
5. (b)
15. (b)
25. (b)
35. (a)
45. (d)
6. (b)
16. (b)
26. (b)
36. (a)
7. (c)
17. (d)
27. (d)
37. (c)
NCERT Exemplar Questions
1. (d)
11. (d)
2. (d)
12. (c)
3. (b)
13. (a)
4. (b)
14. (d)
5. (a)
6. (b)
7. (c)
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