Friday, April 19, 2019

WBCS Polity and Constitution MCQs Prelims and Mains

WBCS Online Preparation of General Science (Biology) P15



141. Which metal ion is associated with Haemoglobin
(A) Al+++
(B) Mn++
(C) Mg++
(D) Fe++

Correct Answer: [D] Fe++.

142. The nitrogen base absent in DNA
(A) Thymine
(B) Cytosine
(C) Uracil
(D) Adenine.

Correct Answer: [C] Uracil.

143. Which one of the following is a protein deficiency disease?
(A) Kwashiorkor
(B) Retinoblastoma
(C) Pellagra
(D) Ricket.

Correct Answer: [A] Kwashiorkor.

144. Which of the following is the producer in a pond ecosystem?
(A) Herbivores
(B) Carnivores
(C) Phytoplankton
(D) Zooplankton.

Correct Answer: [C] Phytoplankton.

145. An essential constituent of the plant cell is the carbohydrate
(A) Starch
(B) Lignin
(C) Cellulose
(D) Sucrose.

Correct Answer: [C] Cellulose.




146. The plant body is not 'differentiated into root, stem and leaves' in
(A) Gymnosperms
(B) Algae
(C) Pteridophytes
(D) Angiosperms.

Correct Answer: [B] Algae.

147. Normal human blood is
(A) Neutral
(B) Variable
(C) Acidic
(D) Alkaline.

Correct Answer: [D] Alkaline.

148. The lowest rate of photosynthesis takes place in
(A) Greenlight
(B) Red light
(C) Blue light
(D) Orange light.

Correct Answer: [A] Greenlight.

149. Which of the following is a terrestrial alga?
(A) Spirulina
(B) Sargassum
(C) Chlorella
(D) Terentepohlia.

Correct Answer: [B] Sargassum.

150. The digested food is absorbed in
(A) Intestine (Large)
(B) Colon
(C) Stomach
(D) Intestine.

Correct Answer: [D] Intestine.



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