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ZOOLOGY MISCELLANEOUS (Part-II)

📆 November 7, 2024

Total Questions: 42

11. The chemical component that is invariably found in all viruses is— [S.S.C. Online Graduate Level (T-I) 11.09.2016 (Shift-III)]

Correct Answer: (a) proteins
Solution:All viruses consist of genetic material (either DNA or RNA, but never both) encased in a protein coat called a capsid.
  • This protein coat is essential for protecting the genetic material and for the virus's ability to infect host cells.
  • Lipids are found only in enveloped viruses, not all viruses.

12. Which among the following is an endothermic reaction? [S.S.C. Online CHSL (T-I) 8.01.2017 (Shift-I)]

Correct Answer: (c) Sweating
Solution:Sweating reduces skin temperature because the sweat that is secreted to the skin evaporates, which is an endothermic process.
  • Thus, heat is absorbed from the body and skin to drive the evaporation of the sweat on the skin.

13. Which of the following is a non-essential life process? [S.S.C. Online Constable GD 13.02.2019 (Shift-II)]

Correct Answer: (b) Reproduction
Solution:Essential life processes are those that an individual organism must perform to survive (e.g., nutrition, respiration, excretion, movement).
  • Reproduction is essential for the continuation of the species, but an individual organism can live and thrive without reproducing.

14. Which of the following is an excretory organ of cockroach? [S.S.C. Online CHSL (T-I) 21.01.2017 (Shift-I)]

Correct Answer: (a) Malpighian Tubules
Solution:Excretion and osmoregulation are brought about by Malpighian tubules that open into the ileum in cockroaches.
  • The tubules that are lined by glandular, cuboidal, brush-bordered cells extract nitrogenous waste from the hemolymph and discharge it into the ileum as uric acid (uricotelism).

15. How many legs does an insect have? [S.S.C. Online Stenographer 14.09.2017 (Shift-II)]

Correct Answer: (d) 6
Solution:All insects have six legs (three pairs of jointed legs) and usually four wings (two pairs).
  • The abdomen is the back part of the insect.
  • Inside the abdomen is the stomach, the heart, and the excretory system where body wastes pass out of the insect.
  • Bees also have a stinger at the back of the abdomen.

16. Muscles get tired when there is shortfall of _____ . [S.S.C. Online CHSL (T-I) 2.02.2017 (Shift-I)]

Correct Answer: (c) ATP
Solution:ATP (Adenosine Triphosphate) is the direct energy currency for muscle contraction.
  • When ATP stores are depleted faster than they can be regenerated, muscles become fatigued.
  • Lactic acid buildup (from anaerobic respiration) is a consequence of high energy demand and insufficient oxygen, contributing to fatigue and soreness, but the fundamental energy deficit is ATP.

17. Which of the following organisms is considered to be both living and non-living? [S.S.C. Online CHSL (T-I) 25.01.2017 (Shift-II)]

Correct Answer: (d) Virus
Solution:Viruses are considered to be the link between living and non-living, as it has characteristics of both.
  • For example, the presence of nucleic acids (DNA or RNA), multiplication inside a living cell are characteristics of its survival.
  • And accumulation in the form of crystals kept outside the cell and lack of cellular organization are the symptoms of its non-living.

18. Match the following— [C.P.O. S.I. 5.06.2016 (Shift-II)]

Shift-IShift-II
(A) Ascorbic acid(1) Photosynthetic pigments
(B) Chlorophyll(2) Quencher
(C) Carotenoids(3) Enzyme
(D) Super-oxide dismutase(4) Vitamin-C

 

ABCD
(a)4132
(b)4213
(c)4123
(d)2413
Correct Answer: (c)
Solution:The correct match is—
Shift-IShift-II
Ascorbic acidVitamin C
ChlorophyllPhotosynthesis pigments
CarotenoidsQuencher
Superoxide dismutaseEnzymes

19. _____ is the ability of a single cell to produce a fertile, adult individual. [S.S.C. Online CGL (T-I) 17.08.2021 (Shift-I)]

Correct Answer: (c) Totipotency
Solution:Totipotency is the unique ability of a single cell (like a zygote or a plant meristematic cell) to differentiate and develop into a complete, fertile organism.
  • This means it can give rise to all cell types, including extra-embryonic tissues.

20. Which of the following popular kitchen ingredients is called the ‘sugar eating fungus’? [S.S.C. Online CGL (T-I) 17.08.2021 (Shift-I)]

Correct Answer: (a) Yeast
Solution:Yeast is a single-celled fungus (Saccharomyces cerevisiae being a common species used in baking and brewing).
  • It ferments sugars (metabolizes them for energy), producing carbon dioxide (which makes bread rise) and alcohol (in brewing).
  • This characteristic gives it the nickname "sugar eating fungus."
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