Thursday, February 27, 2020

WBCS Polity and Constitution MCQs Prelims and Mains

biology question bank pdf For UPSC | SSC | Rail | RRB | State PSC | NEET P29


Biology 29

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

Correct Answer: [D] Fe++.
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142. The nitrogen base absent in DNA
(A) Thymine
(B) Cytosine
(C) Uracil
(D) Adenine

Correct Answer: [C] Uracil.
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143. Which one of the following is a protein deficiency disease?
(A) Kwashiorkor
(B) Retinoblastoma
(C) Pellagra
(D) Ricket

Correct Answer: [A] Kwashiorkor.
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144. Which of the following is the producer in a pond ecosystem?
(A) Herbivores
(B) Carnivores
(C) Phytoplankton
(D) Zooplankton

Correct Answer: [C] Phytoplankton.
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145. n essential constituent of the plant cell is the carbohydrate
(A) Starch
(B) Lignin
(C) Cellulose
(D) Sucrose

Correct Answer: [C] Cellulose.
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