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Complete Biology for every exam

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Select the correct statement about Plasma membrane
1. An outermost envelope-like membrane or a structure,
which surrounds the cell and its organelles
2. The plasma membrane is a flexible, lipid trilayer
a) 1 only
b) 2 only
c) both 1 and 2
d) none of the above
Kitchen of the cell is
A. mitochondria
B. endoplasmic reticulum
C. chloroplast
D. Golgi apparatus
The proteins and lipids, essential for building the cell
membrane, are manufactured by:
A. Endoplasmic reticulum
B. Golgi apparatus
C. Mitochondria
D. Peroxisomes
Amoeba acquires its food through
A. Endocytosis
B. Exocytosis
C. Transpiration
D. Both A & B
Which of the following cell organelles is absent in animal cells
and present in a plant cell?
a) Mitochondria
b) Cell wall
c) Cytoplasm
d) Vacuoles
Which of the following statements is true about the Golgi bodies?
a) It is a sac-like organelle
b) It is located near the nucleus
c) It helps in transporting the
particles throughout the cell.
d) All of the above
SER differ from RER in
A. Presence of glucose molecules
B. Absence of glucose molecule
C. Absence of granules on surface
D. Absence of ribosome on surface
The colourless plastids are called as .......... and their
main function is ..........
a) Chloroplasts, photosynthesis
b) Leucoplasts, respiration
c) Chromoplasts, protection from
sunlight
d) Leucoplasts, storage of food
Which among the following statements is/are correct
1. Chromosomes are composed of DNA and protein
2. The nucleus contains chromosomes, which are visible as rodshaped structures
a) 1 only
b) 2 only
c) both 1 and 2
d) none of the above
Which among the following statements is/are correct
1. The SER helps in the manufacture of fat molecules, or
lipids
2. RER helps in protein manufacture
a) 1 only
b) 2 only
c) both 1 and 2
d) none of the above
Which among the following pairs is/are correct
1. Golgi apparatus – formation of lysosomes
2. Lysosomes - filled with digestive enzymes
3. Mitochondria – ATP generation
4. endoplasmic reticulum - network system
a) 1 only
b) 2 and 3 only
c) 1 and 2 only
d) all of the above
Which among the following statements is/are correct
1. Vacuoles are small sized in plant cells while animal cells have very large
vacuoles
2. play important roles in expelling excess water and some wastes from the cell.
a) 1 only
b) 2 only
c) both 1 and 2
d) none of the above
Which among the following statements is Incorrect
a) The process of cell division by which most of the cells
divide for growth is called mitosis
b) Specific cells of reproductive organs or tissues in
animals and plants divide to form gametes
c) When a cell divides by meiosis it produces two new cells
d) None of the above
The undefined nuclear region of prokaryotes is known as
A. Nucleus
B. Nucleoid
C. Nucleolus
D. Nucleic acid
Which one of the following cell organelles
mainly functions as storehouse of digestive
enzymes?
A. Desmosome
B. Ribosome
C. Lysosome
D. Vacuoles
Which one of the following plant plastids
stores starch, oil and protein granules?
(a) Chloroplast
(b) Leucoplast
(c)Chromoplast
(d) Xanthoplast
Which among the following statement is Incorrect
a) If a cell is placed in a hypertonic solution, Exosmosis takes place
b) If a cell is placed in a hypotonic solution, Endosmosis takes place
c) The osmotic pressure is the minimal pressure required to prevent
the inward flow of a solution's pure solvent across a semipermeable
barrier
d) None of the above
Difference between Osmosis and Diffusion
Which among the following statements is/are correct
1. Apical meristem is present at the growing tips of stems and roots and
increases the length of the stem and the root
2. The girth of the stem or root increases due to lateral meristem (cambium).
a) 1 only
b) 2 only
c) both 1 and 2
d) none of the above
Which among the following pairs is/are correct
1. Phloem - transports food
2. Sclerenchyma - makes the plant hard and stiff
3. Xylem - transport water and minerals
a) 1 and 2
b) 2 and 3
c) 1 and 3
d) 1, 2 and 3
Which among the following are simple tissues
1. Parenchyma
2. collenchyma
3. Xylem
4. Sclerenchyma
a) 1, 2 and 3
b) 2, 3 and 4
c) 1, 2 and 4
d) 1, 2, 3 and 4
Which among the following statements is/are correct
1. Nervous tissue is made of neurons that receive and conduct impulses
2. Striated, unstriated and cardiac are three types of muscle tissues
3. areolar tissue, adipose tissue, bone are connective tissues
a) 1 and 2
b) 2 and 3
c) 1 and 3
d) 1, 2 and 3
Which among the following statements is/are correct
1. Two bones can be connected to each other by ligament
2. Tendons connect muscles to bones
a) 1 only
b) 2 only
c) both 1 and 2
d) none of the above
Which among the following is INCORRECT about Ligament
a) This tissue is very elastic
b) It has considerable strength
c) Ligaments contain very little matrix
d) It has limited flexibility
Bone matrix is rich in
A. Fluoride and calcium
B. Calcium and phosphorus
C. Calcium and potassium
D. Phosphorus and potassium
Which of the following helps in repair of tissue and fills up
the space inside the organ?
A. Tendon
B. Adipose tissue
C. Areolar
D. Cartilage
Which among the following pairs is/are correct
1. Simple squamous epithelial cells - oesophagus and the lining of the
mouth
2. columnar epithelium - inner lining of the intestine,
3. Cuboidal epithelium - In the respiratory tract
a) 1 and 2
b) 2 and 3
c) 1 and 3
d) 1, 2 and 3
Type of epithelial tissue present on places where the
exchange of materials/gases occur selectively is:
A. Simple Squamous
B. Stratified squamous
C. Cuboidal
D. Cuboidal
Which of the following Muscles present in our limbs
move when we want them to, and stop when we so decide
a) Striated
b) unstriated
c) Cardiac
d) All the above
Which muscles act involuntarily ?
i- Striated muscles
ii- Smooth muscles
iii- Cardiac muscles
iv- Skeletal muscles
A. i & ii
B. ii & iii
C. iii & iv
D. i & iv
Diseases that spread from one person to another are called _______
a) Communicable diseases
b) Degenerative diseases
c) Non-communicable diseases
d) None of the above
Alzheimer’s and osteoporosis are examples of _______.
a) Communicable diseases
b) Degenerative diseases
c) Non-communicable diseases.
d) None of the above
Which of the following vitamins functions as both
hormone and visual pigment?
a) Thiamine
b) Retinal
c) Riboflavin
d) Folic acid
For the prevention of dehydration, the patient is advised to
take Oral Rehydration Solution (ORS). The main
components of ORS solution are:
A. Sodium chloride, sodium bicarbonate, potassium
chloride, glucose, sucrose and water
B. Sodium chloride, sodium carbonate, potassium
chloride, glucose,sucrose and water
C. Sodium carbonate, sodium bicarbonate, potassium
chloride, glucose,sucrose and water
D. None
Energy derived from the food we eat is stored in our body in the
form of
a) Glucose
b) Starch
c) Glycogen
d) none of the above
Which among the following is the function of the guard cells
a) essential for photosynthesis
b) The opening and closing of the pore
c) Reduction of carbon dioxide to carbohydrates.
d) Absorption of light energy
You must have observed that a fruit when unripe is green but
it becomes beautifully coloured when ripe. According to you,
what is the reason behind this colour change?
A. Chloroplasts change to chromoplasts
B. Chromoplasts change to chromosomes
C. Chloroplasts change to chromosomes
D. Chromoplasts change to chloroplasts
Raw materials required in the autotrophic mode of nutrition
involves:
i. Carbon dioxide and water
ii. Chlorophyll
iii. Nitrogen
iv. Sunlight
A. (i), (ii) and (iii)
B. (i) and (ii)
C. (i), (ii) and (iv)
D. All (i), (ii), (iii) and (iv)
Select the correct pair/pairs
1. Amylase Enzyme: They break down starches and
carbohydrates into sugars.
2. Pepsin: breaking down protein in the food into smaller
particles known as peptide and amino acids
3. Lipase Enzyme: digestion of lipids
a) one pair
b) Two pairs
c) Three pairs
d) none
Which among the following statements is/are correct
1. The exit of food from the stomach is regulated by a
sphincter muscle
2. The food coming from the stomach is acidic
a) 1 only
b) 2 only
c) both 1 and 2
d) none of the above
Breakdown of pyruvate using oxygen takes place in
a) Mitochondria
b) Endoplasmic reticulum
c) Cytoplasm
d) Nucleus
Glycolysis process occurs in which part of the cell?
(a) Cytoplasm
(b) Nucleus
(c) Mitochondria
(d) Chloroplast
Which among the following statements is/are correct
1. In anaerobic respiration pyruvate may be converted into
ethanol and carbon dioxide
2. In aerobic respiration pyruvate may be converted into
carbondioxide and water
a) 1 only
b) 2 only
c) both 1 and 2
d) none of the above
Which among the following statements is/are correct
1. The blood brings oxygen from the rest of the body for release
into the alveoli
2. carbon dioxide in the alveolar air is taken up by blood in the
alveolar blood vessels to be transported to all the cells in the
body
a) 1 only
b) 2 only
c) both 1 and 2
d) none of the above
Select the correct statement
a) haemoglobin has a very high affinity for carbon
dioxide
b) Carbon dioxide is more soluble in water than oxygen
c) the rate of breathing in aquatic organisms is much
slower than that seen in terrestrial organisms
d) all the above
Select the correct statement
a) De-oxygenated blood comes from the body to the upper
chamber on the right atrium
b) Oxygen-rich blood from the lungs comes to the thinwalled upper chamber of the heart on the left atrium.
c) Valves ensure that blood does not flow backwards
d) All the above
Identify
1. circulate around the body
2. helps to clot the blood at the points of injury.
3. Present in blood
a) Serum
b) WBC
c) Platelets
d) RBC
Each capillary cluster in the kidney is associated with
the cup-shaped end of a coiled tube called ---------that collects the filtrate
a) Bowman’s capsule
b) Glomerulus
c) Nephron
d) renal vein
Which part of brain specialised for hearing, smell, sight
a) Hindbrain
b) Forebrain
c) Midbrain
d) none
Which among the following statements is/are correct
1. involuntary actions including blood pressure, salivation
and vomiting are controlled by the medulla in the hindbrain.
2. activities like walking in a straight line, riding a bicycle,
picking up a pencil. These are possible due to a part of the
hind-brain called the cerebellum
a) 1 only
b) 2 only
c) both 1 and 2
d) none of the above
Select the Incorrect statement
a) Thyroxin regulates carbohydrate,
protein and fat metabolism in the
body
b) Insulin regulate blood sugar levels
c) Adrenal gland Stimulates pituitary
gland to release hormones
d) Pituitary gland Stimulates growth
in all organs
Which of the following is a plant hormone?
a) Insulin
b) Thyroxin
c) Oestrogen
d) Cytokinin.
select the Incorrect statement
a) female gamete present in the anther
b) The male germ-cell is produced by pollen grain
c) fusion of the germ-cells or fertilisation gives us the
zygote
d) zygote divides several times to form an embryo within
the ovule
select the correct statements
1. formation of germ-cells or sperms takes place in the testes
2. sperms formed are delivered through the vas deferens
3. The secretions of prostate and the seminal vesicles makes sperm
transport easier
a) 1 and 2
b) 1 and 3
c) 2 and 3
d) 1, 2 and 3
A zygote which has an X-chromosome inherited
from the father will develop into a
(a) either boy or girl
(b) boy
(c) girl
(d) X-chromosome does not influence
the sex of a child.
select the Incorrect statement
a) Evolution can be worked out by the study of not just
living species, but also fossils.
b) Speciation may take place when variation is
combined with geographical isolation
c) Variations in the species may confer survival
advantages
d) Changes in the non-reproductive tissues caused by
environmental factors are inheritable.
Which of the following is not an example of homologous organs
a) Our arm and a dog's fore-leg
b) Our teeth and an elephant's tusk
c) Potato and runners of grass
d) wings in flying animals like bats, birds, and insects
Paramecium and euglena belongs to which kingdom?
A. Monera
B. Protista
C. Fungi
D. Plantae
Fungus and algae both are placed under the same division
“Thallophyta”.What is the reason that both share the same group?
A. Both are autotrophic
B. Both are saprophytic
C. Plant body in both is not
differentiated into root, stem
and leaves.
D. Both have false roots
Plants that produce flowers and bear their seeds in fruits are called
A. Gymnosperms
B. Phanerogams
C. Cryptogams
D. Angiosperm
Spirogyra, Ulothrix, Cladophora and Chara, are examples of
A. THALLOPHYTA
B. BRYOPHYTA
C. PTERIDOPHYTA
D. ANGIOSPERMS
identify
They are warm-blooded animals
They have well-developed flight muscles that help during the flight
Their forelimbs are modified into wings
A. Reptiles
B. Amphibians
C. Aves
D. Pisces
Most paramecium move with the help of_______
A. Villi
B. Oral grove
C. Cilia
D. Stationary
Single circulation, i.e., blood flows through the heart only
once during one cycle of passage through the body, is
exhibited by which of the following:
A. hyla, rana, draco
B. whale, dolphin, turtle
C. labeo, chameleon, salamander
D. hippocampus, exocoetus, anabas
Funaria belongs to the division ______
A. Gnetophyta
B. Bryophyta
C. Magnoliophyta
D. Amniota
Which one is the most striking or (common) character of the
vertebrates?
A. Presence of notochord
B. Presence of triploblastic condition
C. Presence of gill pouches
D. Presence of coelom
CDS-NDA 2023 BIOLOGY PYQ
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