Thursday, February 27, 2020

WBCS Polity and Constitution MCQs Prelims and Mains

biology mcq For UPSC | SSC | Rail | RRB | State PSC P27

Biology 27

131. Which of the following is not a physical change?
(A) Dissolving sugar in tea.
(B) Buring of wax in a candle
(C) Dehydrating milk to get milk powder.
(D) Sublimation of iodine

Correct Answer: [B] Buring of wax in a candle.
132. In respiration, cytosol plays a significant role in
(A) Krebs cycle
(B) Glycolysis
(C) Oxidative phosphorylation
(D) Oxidative decarboxylation of pyruvic acid

Correct Answer: [B] Glycolysis.
133. The presence of pneumatophore (breathing root) is found in
(A) Hydrophytic plants
(B) Insectivores
(C) Mangrove plants
(D) Epiphytic plants

Correct Answer: [C] Mangrove plants.
134. The ingredient that assists the clotting of blood is
(A) Vitamin D
(B) Vitamin K
(C) Vitamin A
(D) Folic acid

Correct Answer: [D] Folic acid.
135. The behavior of energy in an ecosystem can be conveniently termed as energy flow because
(A) Energy transformations are the one-way direction.
(B) Energy is the denominator of all kinds of system.
(C) Energy transformations are multidirectional in nature.
(D) None of the above

Correct Answer: [A] Energy transformations are the one-way direction..


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