Zoology objective practice test

Zoology objective practice test
Zoology Objective Test Online Practice Test
Free Online Test Objective Zoology Quiz

1. Hopanoids are present in membrane of:
(a) all eukaryotes
(b) algae
(c) bacteria
(d) fungi
Ans. (c)

2. Sarcolemma is a membrane found over in:
(a) nerve fibre
(b) cardiac muscle
(c) skeleton muscle fibre
(d) heart
Ans. (c)

3. Which of the following statement is right?
(a) Prophase-I —> leptotene —> pechytene —> zygotene —>diplotene —> diakinesis
(b) Prophase-I —> leptotene —> zygotene —> diplotene —> pechytene —> diakinesis
(c) Prophase-I —> leptotene —> zygotene —> pechytene —> diplotene —> diakinesis
(d) Prophase-I —> leptotene —> diplotene —>zygotene —> pachytene —>diakinesis
Ans. (c)

4. Setae or chaetae are absent on:
(a) peristomium
(b) pygidium
(c) clitellum
(d) all of these
Ans. (d)

5. —10 sequence on promoter has 6 nucleotides which have a specific sequence. Which is?
(a) TATATA
(b) TAATAT
(c) TATAAT
(d) TATTAT
Ans. (c)

6. Na+ - K+ ATPase protein required how much ATP molecules for import of two K within the cell?
(a) 4
(b) 3
(c) 2
(d) 1
Ans. (d)



7. A protein, which is analogous to eukaryotic histones, present in some species of bacteria:
(a) UH protein
(b) H protein
(c) U protein
(d) RU protein
Ans. (d)

8. The pairing of homologous chromosomes during zygotene is called as
(a) synapse
(b) terminalisation
(c) synopsis
(d) crossing over
Ans. (c)


9. Which of the following disease was the first human disease found to be caused by a virus:
(a) smallpox
(b) colorado tick fever
(c) yellow fever
(d) rubella
Ans. (c)

10. Which of the following muscle gets into fatigue very early?
(a) Skeletal muscle
(b) Cardiac muscle
(c) Smoth muscle
(d) All of these
Ans. (a)



11. Who proposed the name m-RNA for the first time?
(a) Lerman
(b) Jacob and Monod
(c) Kelley
(d) Spirin
Ans. (b)


12. ADH and oxytocin are produced by:
(a) posterior pituitary gland
(b) anterior pituitary gland
(c) thyroid gland
(d) neurosecretory cell bodies
Ans. (d)

13. Which type of inversion include centromere portion of a chromosome?
(a) Paracentric
(b) Pericentric
(c) Both (a) and (b)
(d) None of these
Ans. (b)


14. The temperature ranges at which enzymes are maximum functional:
(a) 40— 45°C
(b) 15— 20°C
(c) 30— 45°C
(d) 20— 30°C
Ans. (c)

15. Which one of the following contains the largest quantity of extracellular material?
(a) Striated muscle
(b) Areolar tissue
(c) Stratified epithelium
(d) Myelinated nerve fibres
Ans. (b)


16. The movement of chloride ions into erythrocytes from plasma to maintain osmotic balance during transport of gases is known as:
(a) chlorination
(b) Hamburger phenomenon
(c) bicarbonate shift
(d) CO2 transport
Ans. (b)

17. Which of the following is not significance of mitosis ?
(a) It helps the cell in maintaining proper size
(b) It does not help in the maintenance of the equilibrium in the amount of DNA and RNA in the cell
(c) The gonads and sex cells depend on the mitosis for the increase in their number
(d) The old decaying and dead cells of body are replaced by the help of mitosis
Ans. (b)

18. Suspension of killed or attenuated pathogenic micro-organisms on inoculation if stimulate the formation of antibodies, it is known as:
(a) vaccine
(b) antibiotic
(c) sera
(d) antitoxins
Ans. (a)

19. In man sperms move after ejaculation at a rate of nearly:
(a) 2 to 4 mm/minute
(b) 2 to 4 feet/minute
(c) 2 to 4 inches/minute
(d) 2 to 4 cm/minute
Ans. (a)

20. Which of the following theory explain structure of protoplasm?
(a) Surface tension theory
(b) Colloidal theory
(c) Sol-gel theory
(d) Viscosity theory
Ans. (b)



21. Main difference between active and passive transport across cell membrane is that:
(a) active transport occurs more rapidly tha3l passive
(b) passive transport is non-selective
(c) passive transport is confined to anions and cations
(d) passive transport requires a concentration gradient across the membrane, whereas active transport requires metabolic energy
Ans. (d)

¬¬¬¬22. Ageing of an animal .body is associated with deterioration in its
(a) connective tissue
(b) glandular tissue
(c) epithelial tissue
(d) both (b) and (a)
Ans. (a)


23. Which of the following factor controls the human population density?
(a) Industry
(b) Climate
(c) Communication
(d) Natural resources
Ans. (b)

24. Christmas disease is another name for:
(a) haemophilia-B
(b) hepatitis-B
(c) Down’s syndrome
(d) sleeping sickness
Ans. (a)



25. Taenia solium derives it’s energy from the breakdown of:
(a) nucleic acids
(b) amino acids
(c) glycogen
(d) glycerol
Ans. (c)