Ch1. Cell
1. Nuclear matter without envelope occurs in?
A
Bacteria and Green Algae
B
Bacteria and Cyanobacteria
C
Cyanobacteria and Red Algae
D
Mycoplasma and Green Algae
2. The Golgi apparatus
A
Is found only in animals
B
Is found in prokaryotes
C
Is a site of rapid ATP production
D
Modifies and packages proteins
3. Prokaryote is characterized by
A
Dispersed DNA and lack of membrane bound
organelles
B
Absence of nuclear envelope
C
Absence of nucleolus
D
All of these
4. Plasmodesmata transports gibberellic acid in
A
Protists
B
Mycoplasma
C
Virus
D
Algae
5. Smaller cell is
A
less active metabolically
B
with larger nucleus
C
with smaller nucleus
D
more active metabolically
6. The cytoplasmic connections from cell to cell are
known as
A
middle lamella
B
plasmodesmata
C
cell membrane system
D
endoplasmic reticulum
7. Main arena of various types of activities of a cell is
A
Nucleus
B
Plasma membrane
C
Mitochondria
D
Cytoplasm
8. The main difference between plant and animal cells
is
A
Plant cells has small vacuoles
B
Animal cell lacks rigid cell wall
C
Animal cells has large vacuoles
D
Plant cell lacks rigid cell wall
9. The plasma membrane consists mainly of
A
Proteins embedded in a carbohydrate bilayer
B
Phospholipids embedded in a protein bilayer
C
Proteins embedded in a phospholipid bilayer
D
Proteins embedded in a polymer of glucose
molecules
10. The suffix 'S' in ribosome unit indicates
A
Solubility
B
Sedimentation coefficient
C
Surface Area
D
Size
11. Tonoplast, also called vacuolar membrane is a
16. Which one of the following is not a constituent of
differentially permeable membrane surrounds the ______.
cell membrane?
A. cytoplasm
A. Phospholipids
B. vacuole
B. Cholesterol
C. nucleus
C. Glycolipids
D. mitochondria
D. Proline
12. Tonoplast is a differentially permeable membrane
surrounding the _____.
A. Vacuole
B. Cytoplasm
C. Mitochondria
D. Nucleus
13. What is a genophore?
A. DNA in prokaryotes
B. DNA and RNA in prokaryotes
C. DNA and protein in prokaryotes
D. RNA in prokaryotes
14. When a ripe tomato is pricked with a needle a
watery fluid comes out. This fluid is stored in
A. Vacuole
B. Plastid
C. Cytoplasm
17. Purines possess nitrogen at
A. 1, 2, 4 and 6 position
B. 1, 3, 5 and 7 position
C. 1, 3, 7 and 9 position
D. 1, 2, 6 and 8 position
18. The two polynucleotide chains in DNA are:
A. Semiconservative
B. Parallel
C. Discontinuous
D. Antiparallel
19. Phagocytosis and pinocytosis are collectively termed
as
A. Endocytosis
B. Suspension feeding
C. Omnivores
D. Mucous trap
D. Nucleus
15. Which one of the following structures between two
adjacent cells is an effective transport pathway?
A. Plasmalemma
B. Plasmodesmata
C. Plastoquinones
D. Endoplasmic reticulum
Question 20
Vital stains are employed to study
D
Protein
A
Living cells
Question 25
B
Frozen tissues
Which one of the following organisms is not an
C
Fresh tissues
D
Preserved tissues
example of eukaryotic cells
A
Amoeba proteus
B
Paramecium caudatum
C
Escherichia coli
bacterial cell?
D
Euglena viridis
A
23 sr RNA
Question 26
B
5 sr RNA
Plasmodesmata are
C
sn RNA
A
Connections between adjacent cells
D
hn RNA
B
Lignified cemented layers between cells
Question 22
C
Locomotary structures
Fluid mosaic model was given by
D
Membranes
Question 21
Which one of the following also acts as a catalyst in a
A
Robertson
B
Schwann
C
Dave Donson
D
Singer and Nicholson
connecting the nucleus with
plasmalemma
Question 27
Which one of the following pairs of nitrogenous bases
of nucleic acids, is wrongly matched with the category
mentioned against it?
Question 23
A
Adenine, Thymine – Purines
Middle lamella is composed mainly of
B
Thymine, Uracil – Pyrimidines
A
Protein
C
Uracil, Cytosine – Pyrimidines
B
Hemicellulose
D
Guanine, Adenine – Purines
C
Carbohydrate
Question 28
D
Calcium pectate
Keeping in view the ‘fluid mosaic model’ for the
Question 24
structure of cell membrane, which one of the following
statements is correct with respect to the movement of
Plasma membrane is made up of
lipids and proteins from one lipid monolayer to the
A
Protein, lipid, carbohydrate
other (described as flip-flop movement)?
B
Lipid, carbohydrate
A
Neither lipids, nor proteins can flip-flop
C
Protein, lipid
B
Both lipids and proteins can flip-flop
C
While lipids can rarely flip-flop, proteins can
not
D
While proteins can flip-flop, lipids can not
Question 29
The length of DNA molecule greatly exceeds the
dimensions of the nucleus in eukaryotic cells. How is
Cell organelles are embedded in
A
Nucleolus
B
Cytoplasm
C
Protoplasm
D
Mitochondria
this DNA accommodated?
Question 33
A
Through elimination of repetitive DNA
Cellular totipotency means
B
Deletion of non-essential genes
A
Synthesis of new cells
C
Super-coiling in nucleosomes
B
Formation of new plants
D
DNAse digestion
C
Formation of new species
D
Capability of a plant cell to form complete
Question 30
Comparing small and large cells, which statement is
Question 34
correct?
A
Small cells have a small surface area per
volume ratio
B
plant
Exchange rate of nutrients is fast with large
cells
Compare the statements A and B. Statement A :
Sclerenchyma cells do not have plasmodesmata.
Statement B : The cell walls of some permanent tissues
are heavily lignified. Select the correct description :
A
Both the statements A and B are wrong.
volume ratio
B
Statement A is correct and B is wrong.
D
C
Statement A is wrong and B is correct.
D
Both the statements A and B are correct.
C
Small cells have a large surface area per
Exchange rate of nutrients is slow with small
cells
Question 35
Question 31
Carbohydrates present in the plasmalemma are in the
Distinction of prokaryotes and eukaryotes is based on
A
Proteins
B
Nucleus
C
Plasma membrane
D
DNA
form of
A
cellulose
B
hemicellulose
C
starch
D
glycolipids and glycoproteins
Question 36
Important site for formation of glycoproteins and
Question 32
glycolipids is
A
Lysosome
D
B
Vacuole
Question 41
C
Golgi apparatus
Intracellular compartments do not occur in
D
Plastid
A
Prokaryotes
Question 37
B
Lower plants
In a Golgi complex the structure which is the functional
C
Eukaryotes
D
Higher plants
unit is
A
Cisternae
B
Thylakoid
C
Archoplasm
D
Cristae
Question 3 8
In eubacteria, a cellular component that resembles
eukaryotic cell is
A
Cell wall
B
Plasma membrane
C
Nucleus
D
Ribosomes
Question
39
Intact chloroplast from green leaves can be isolated by:
A
Acetone
B
Ethanol
C
Sucrose solution
D
Alcohol
Question 40
Which of the following is considered an exception to
Algae
Question 42
Longest cells in human body are
A
Leg muscle cells
B
Bone cells
C
Nerve cells
D
Heart muscle cells
Question 43
Membrane-bound organelles are absent in
A
Plasmodium
B
Saccharomyces
C
Streptococcus
D
Chlamydomonas
Question 44
Mitochondria do not occur in
A
Bacteria
B
Green Algae
C
Brown algae
D
Red Algae
cell theory?
Question 45
A
Protists
The size of molecules, which can pass through the
B
Mycoplasma
C
Virus
plasma membrane is
A
4 - 15 Å
B
25 - 80 Å
Ribosomal RNA is actively synthesized in :
C
8 - 10 Å
A
Nucleoplasm
D
10 - 35 Å
B
Ribosomes
C
Lysosomes
Question 46
D
Nucleolus
Which one of the following does not differ in E.coliand
Question 50
Chlamydomonas?
A
Cell wall
B
Cell membrane
C
Ribosomes
D
Chromosomal organization
Question 47
Select the correct statement from the following
regarding cell membrane
A
Lipids are arranged in a bilayer with polar
E. Coli about to replicate was placed in a medium
containing radio active thymidine for five minutes. Then
it was made to replicate in a normal medium. Which of
the following observation shall be correct?
A
Both the strands of DNA will be radio active
B
One strand radio active
C
Each strand half radio active
D
None is radio active
Question 51
heads towards the inner part.
Assertion: A cell membrane shows fluid behaviour.
B
Reason: A membrane is a mosaic or composite of
Fluid mosaic model of cell membrane was
proposed by Singer and Nicolson.
diverse lipids and proteins.
C
A
Na+ and K+ ions move across cell membrane
Both Assertion and Reason are true and the
by passive transport.
Reason is the correct explanation of the Assertion.
D
B
Proteins make up 60 to 70% of the cell
Both Assertion and Reason are true but the
membrane
Reason is not the correct explanation of the Assertion.
Question 48
C
Assertion is true statement but Reason is false.
What is true about ribosomes?
D
Both
A
These are found only in eukaryotic cells
B
These are self-splicing introns of some RNAs.
C
The prokaryotic ribosomes are 80S, where "S"
stands for sedimentation coefficient
Assertion
and
false
Question 52
A nucleosome is a portion of the chromonema
containing ______.
both DNA and histones
proteins.
B
only histones
Question 49
C
both DNA and RNA
These are composed of ribonucleic acid and
are
statements.
A
D
Reason
D
only DNA
Question 53
If a cell has twice as much DNA as in a normal
functional cell, it means that the cell ______.
A
has completed division
B
is preparing to divide
C
has ceased to function
D
has reached the end of its lifespan
Question 54
What is the common point of similarity between DNA
and RNA?
A
Both are double stranded
B
Both have identical sugar molecules
C
Both have identical pyrimidine bases
D
Both are polymers of nucleotides
Question 55
Cell wall consists of
A
Lignin, hemi cellulose, pectin and lipid
B
Lignin, hemi cellulose, pectin and cellulose
C
Lignin hemi cellulose, protein and lipid
D
Hemi cellulose, cellulose, tubulin and lignin
Question 56
Cytoskeleton is made up of
A
Proteinaceous filaments
B
Calcium carbonate granules
C
Callose deposits
D
Cellulosic microfibrils
Question 57
Vacuole in a plant cell :
A
Lacks membrane and contains water and
excretory substances
B
Is membrane-bound and contains storage
proteins and lipids
C
Is membrane-bound and contains water and
excretory substances
D
Lacks membrane and contains air
Question 58
Polysome is formed by
A
Ribosomes attached to each other in a linear
arrangement
B
Several ribosomes attached to a single mRNA
C
Many ribosomes attached to a strand of
endoplasmic reticulum