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Objective Questions

Latest NVS PGT Biology Exam Question (Objective Questions), MCQ in English

Subjects : Biology

Question Bank NVS PGT Biology Tier-2 Exam - English
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Biology

Question 1Single Answer
The respiratory quotient during cellular respiration would depend on
  1. A
    the nature of enzymes involved
  2. B
    the nature of the substrate
  3. C
    the amount of carbon dioxide released
  4. D
    the amount of oxygen utilised
Question 2Single Answer
Which of the following is not a green - house gas ?
  1. A
    Water vapour
  2. B
    Carbon monoxide
  3. C
    Methane
  4. D
    Oxygen
Question 3Single Answer
Both husband and wife have normal vision though their fathers were colorblind and mothers did not have any gene for colorblindness. The probability of their daughters becoming colorblind is
  1. A
    50%          
  2. B
    75%
  3. C
    0% 
  4. D
    25%
Question 4Single Answer
An animal, which has both exoskeleton and endoskeleton structures is a
  1. A
    fresh-water mussel
  2. B
    tortoise
  3. C
    frog
  4. D
    jelly fish
Question 5Single Answer
Identify the group, which includes animals all of which give birth to young ones directly?
  1. A
    Dolphin, kangaroo, bat, cat
  2. B
    Platypus, penguin, bat, hippopotamus
  3. C
    shrew, bat, kiwi, car
  4. D
    Lion, whale, ostrich, bat
Question 6Single Answer
Compare the statement A and B.
Statement A Blood sugar level falls rapidly after hepatectomy.
Statement B The glycogen of the liver is the principal source of blood sugar.
Select the correct description.
  1. A
    Both the statements A and B are correct and B is the reason for A
  2. B
    Statement A is correct and B is wrong
  3. C
    Statement A is wrong and B is correct
  4. D
    Both the statements A and B are correct and B is not the reason for A
Question 7Single Answer
What is/are true about heart wood?
(A) It does not help in water conduction.
(B) It is also called laburnum.
(C) It is dark in colour but very soft.
(D) It has tracheary elements which are filled with tannin, resin, etc.
  1. A
    B,C and D
  2. B
    A and D
  3. C
    B and D
  4. D
    A, B and C
Question 8Single Answer
Compare the statements A and B.
Statement A Auxins promote apical dominance by suppressing the activity of lateral buds.
Statement B In moriculature, periodic pruning of shoot tips is done to make mulberry plants bushy.
Select the correct description.
  1. A
    Both the statements A and B are correct and A is the reason for B
  2. B
    Statement A is correct and B is wrong
  3. C
    Statement A is wrong and B is correct
  4. D
    Both the statements A and B are correct and A is not the reason for B
Question 9Single Answer
Bryophytes resemble algae is the following aspects
  1. A
    Filamentous body, presence of vascular tissues and autotrophic nutrition
  2. B
    Differentiation of plant body into root, stem and leaves and autotrophic nutrition
  3. C
    Thallus like plant body, presence of roots and autotrophic nutrition
  4. D
    Thallus like plant body, lack of vascular tissues and autotrophic nutrition
Question 10Single Answer
Stoma opens, when
  1. A
    guard cells swell due to an increase in their water potential
  2. B
    guard cells swell by endosmosis duie to influx of hydrogen ions (protons)
  3. C
    guard cells swell by endosmosis due to efflux of potassium ions
  4. D
    guard cell swell due to a decrease in their water potential
Question 11Single Answer
Which of the following is properly matched ?
  1. A
    Platyhelminthes –Trematoda – Planoria
  2. B
    Echinodermate – Asteroidea – Star fish
  3. C
    arthropoda – Insecta – Spider
  4. D
    Mollusca – Cephalopoda – Unio
Question 12Single Answer
A man is admitted to a hospital. He is suffering from an abnormally low body temperature, loss of appetite and extreme thirst. His brain scan would probably show a tumour in
  1. A
    medulla oblongata
  2. B
    pons
  3. C
    cerebellum 
  4. D
    hypothalamus
Question 13Single Answer
The agents, which are known to cause CJD are
  1. A
    protein particles
  2. B
    a class of bacteria
  3. C
    a class of viruses
  4. D
    fungi
Question 14Single Answer
In crop improvement programmers, virus-free clones can be obtained through
  1. A
    grafting
  2. B
    hybridization
  3. C
    embryo culture 
  4. D
    shoot apex culture
Question 15Single Answer
A person is suffering from frequent episodes of nasal discharge, nasal congestion, reddening of eyes and watery eyes. These are the symptoms of
  1. A
    cyanosis
  2. B
    bronchitis
  3. C
    rhinitis
  4. D
    bronchial carcinoma
Question 16Single Answer
Some important events in the human female reproductive cycle are given below. Arrange the events in a proper sequence.
A: Secretion of FSH
B: Growth of corpus luteum
C: Growth of the follicle and oogenesis
D: Ovulation
E: Sudden increase in the levels of LH
 
  1. A
    C → A → D → B → E
  2. B
    A → C → E → D → B
  3. C
    A → D → C → E → B
  4. D
    B → A → C → D → E
Question 17Single Answer
Which of the following options shows bisexual animals only ?
  1. A
    Amoeba, sponge, leech
  2. B
    Sponge, cockroach, Amoeba
  3. C
    Earthworm, sponge, leech
  4. D
    Tapeworm, earthworm, honeybee
Question 18Single Answer
Vaccination against small pox was developed by:
  1. A
    Louis Pasteur
  2. B
    Edward jenner
  3. C
    Robert Koch
  4. D
    Alexander Flemming
Question 19Single Answer
The value of human diastolic blood pressure is :
  1. A
    120 – 80 = 40 mm. Hg
  2. B
    120 mm. Hg
  3. C
    80 mm. Hg
  4. D
    128/80 mm. Hg
Question 20Single Answer
Balance theory of sex determination holds good for:
  1. A
    Allium cepa
  2. B
    Drosophila
  3. C
    Humans
  4. D
    grasshoppers
Question 21Single Answer
the plants respond to photo – periods due to the presence of :
  1. A
    Phytochromes
  2. B
    Stomata
  3. C
    Enzymes
  4. D
    Phytohormones
Question 22Single Answer
Identify the edible fresh-water telesots:
  1. A
    Sharks
  2. B
    Rays and skates
  3. C
    Hilsa ilisha
  4. D
    Catla catla
Question 23Single Answer
Plasmids occur in:
  1. A
    Viruses
  2. B
    Chromosomes
  3. C
    Bacteria
  4. D
    Chloroplasts
Question 24Single Answer
Match the names of antibiotics listed under column 1 with their source given under column 2; choose the correct combination of alphabets of the two columns:
  Column 1   Column 2
A
B
C
D		 Neomycin
Terramycin
Viridian
penicillin		 p
q
r
s		 Streptomyces fradiae
Penicillium notatum
Streptomyces rimosus
Gliocladium virens
  1. A
    A = r, B = p, C = s, D = q
  2. B
    A = r, B = s, C = p, D = q
  3. C
    A = p, B = r, C = s, D = q
  4. D
    A = s, B = p, C = r, D = q
Question 25Single Answer
The bond formed between the first phosphate group and adenosine in ATP is:
  1. A
    Nitro – phosphate bond
  2. B
    Adeno – phosphate bond
  3. C
    Phosphoester bond
  4. D
    Phosphoanhydride bond
Question 26Single Answer
The protists have:
  1. A
    Gene containing nucleo-proteins condensed together in loose mass
  2. B
    Nucleo-protein in direct contact with the nest of the cell substance
  3. C
    Only tree nucleic acid aggregates
  4. D
    Membrane bound nucleo-proteins lying embedded in the cytoplasm
Question 27Single Answer
Antrum is the cavity of:
  1. A
    Gastrula
  2. B
    Graffian follicle
  3. C
    Ovary
  4. D
    Blastula
Question 28Single Answer
Which of the following statement is wrong?
  1. A
    Endospores are produced in pteridophyta
  2. B
    Naked seeds are seen in gymnosperms
  3. C
    Capsule is present in the sporophyte of bryophyte
  4. D
    Basidiocarp is the fruiting body of fungus
Question 29Single Answer
The pioneers in the field of organic evolution are:
  1. A
    Darwin, Hugo de Vries, Lamarck, Huxely
  2. B
    Karl Landsteiner, Hugo de Vries, Malthus, Darwin
  3. C
    Lamarck, Karl Landsteiner, Malthus, De Vries
  4. D
    Darwin, Lamarck, Karl Landsteiner, De Vries
Question 30Single Answer
This one is the characteristic of epithelial tissues:
  1. A
    These cells never produce glands
  2. B
    The cells have a rapid rate of cell division
  3. C
    Tissues are highly vascularized
  4. D
    Large intercellular spaces are seen between the cells
Question 31Single Answer
Which of the following contain enzymes for cellular respiration ?
  1. A
    Dictyosomes
  2. B
    Endoplasmic reticulum
  3. C
    lysosomes
  4. D
    Mitochondria
Question 32Single Answer
Which one among the following nutrients is a strctural
  1. A
    Cell membrane
  2. B
    Plasma membrane
  3. C
    Cell wall
  4. D
    Nucleus
Question 33Single Answer
Which one among the following nutrients is a structural component of the cell wall of plants ?
  1. A
    Manganese
  2. B
    Potassium
  3. C
    Phosphorus
  4. D
    Calcium
Question 34Single Answer
Which of the following groups is present in animal cells ?
  1. A
    Mitochondria, Cell membrane, Cell wall, Cytoplasm
  2. B
    Chloroplasts, Cytoplasm, Vacuole, Nucleus
  3. C
    Nucleus, Cell membrane, Mitochondria, Cytoplasm
  4. D
    Vacuole, cell membrane, Nucleus, Mitochondria
Question 35Single Answer
For which among the following is not a true fruit ?
  1. A
    Apple
  2. B
    Date
  3. C
    Grape
  4. D
    Plum
Question 36Single Answer
Which one of the following is not a constituent of cell membrane ?
  1. A
    Cholesterol
  2. B
    Glycoplids
  3. C
    Proline
  4. D
    Phospholipids
Question 37Single Answer
The replication of DNA is a pre-requisite for a eukaryotic cell to undergo division. During the cell cycle, the DNA replicates in
  1. A
    S–phase
  2. B
    G1–phase
  3. C
    G2–phase
  4. D
    M-phase
Question 38Single Answer
During which stage of mitosis does cytokinesis usually occur in animals ?
  1. A
    Phophase
  2. B
    Metaphase
  3. C
    Anaphase
  4. D
    Telophase
Question 39Single Answer
Lysosome arises from
  1. A
    endoplasmic reticulum
  2. B
    golgi apparatus
  3. C
    nucleus
  4. D
    mitochondria
Question 40Single Answer
The correct sequence of cell cycle is
  1. A
    S, G1, G2, M
  2. B
    S, M, G1, G2
  3. C
    G1, S, G2, M
  4. D
    M, G1, G2, S
Question 41Single Answer
Biological membranes are composed of
  1. A
    40% proteins and 60% lipids
  2. B
    50% proteins and 50% lipids
  3. C
    70% proteins and 30% lipids
  4. D
    60% proteins and 40% lipids
Question 42Single Answer
F1 particles / oxysome / elementary particles are present in
  1. A
    endoplasmic reticulum
  2. B
    chloroplast
  3. C
    mitochondria
  4. D
    golgi complex
Question 43Single Answer
"Endomitosis" refers to
  1. A
    division of nucleus without chromosomal division
  2. B
    division of chromosome without nuclear division
  3. C
    division of cytoplasm
  4. D
    None of the above
Question 44Single Answer
When the concentration of water and solutes on either side of the cell membrane is same, the solution is said to be
  1. A
    hypertonic
  2. B
    isotonic
  3. C
    hypotonic
  4. D
    None of these
Question 45Single Answer
The function of nucleous is the synthesis of
  1. A
    DNA
  2. B
    m - RNA
  3. C
    r- RNA
  4. D
    t - RNA
Question 46Single Answer
Mesosome in a bacterial cell is
  1. A
    plasmid
  2. B
    connection between two cells
  3. C
    plasma membrane infolded for respiration
  4. D
    None of these
Question 47Single Answer
In living cels synthesis of ribonoucleic acid (RNA) takes place in :
  1. A
    Cytoplasm
  2. B
    Nucleus
  3. C
    Golgi body
  4. D
    Nephron
Question 48Single Answer
The cell organelle storing substances like starch, oil and proteins is
  1. A
    Vacuole
  2. B
    Lysosome
  3. C
    Plastid
  4. D
    Golgi body
Question 49Single Answer
Organisms lacking nuclear membrane and cell organelles is called as :
  1. A
    Prokaryotes
  2. B
    Eukaryotes
  3. C
    Protozoa
  4. D
    Virus
Question 50Single Answer
Cell organelles that are involved in the waste disposal system of the cell are :
  1. A
    Golgi apparatus
  2. B
    Lysosomes
  3. C
    Chromosomes
  4. D
    Ribosomes
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