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MCQs

Total Questions : 310 | Page 22 of 31 pages
Question 211. Phosphate is considered to restrict the induction of
  1.    both (a) and (b)
  2.    primary metabolites
  3.    secondary metabolites
  4.    none of these
 Discuss Question
Answer: Option C. -> secondary metabolites
Question 212. Which of the following nucleoside diphosphates is used most often in carbohydrate anabolism?
  1.    Guanine diphosphate
  2.    Thymine diphosphate
  3.    Uridine diphosphate
  4.    Adenosine diphosphate
 Discuss Question
Answer: Option C. -> Uridine diphosphate
Question 213. When acetate is the sole source of carbon for some microorganisms, the cycle which is used, is called
  1.    glyoxylate pathway
  2.    oxaloacetate pathway
  3.    pentose phosphate pathway
  4.    glycolyic pathway
 Discuss Question
Answer: Option A. -> glyoxylate pathway
Question 214. The glyoxylate cycle is used by some microorganisms when___________ is the sole carbon source.
  1.    carbon dioxide
  2.    nitrate
  3.    acetate
  4.    all of these
 Discuss Question
Answer: Option C. -> acetate
Question 215. Hexose monophosphate pathway is also known as
  1.    malate pathway
  2.    fumerate pathway
  3.    phosphogluconate pathway
  4.    oxaloacetate pathway
 Discuss Question
Answer: Option C. -> phosphogluconate pathway
Question 216. If radioactive bicarbonate was supplied to bacterial cells, which were actively synthesizing fatty acids, it is expected to find the bulk of the radioactivity in
  1.    cellular bicarbonate
  2.    nucleic acids
  3.    the cytoplasmic membrane
  4.    the fatty acids
 Discuss Question
Answer: Option A. -> cellular bicarbonate
Question 217. Standard free energy change (ΔG) can be expressed as
  1.    ΔG° = RTlnkeq
  2.    ΔG° = -RT/lnkeq
  3.    ΔG° = -RTlnkeq
  4.    ΔG° = R/Tlnkeq
 Discuss Question
Answer: Option C. -> ΔG° = -RTlnkeq
Question 218. TCA cycle functions in
  1.    catabolic reactions
  2.    none of these
  3.    anabolic reactions
  4.    amphibolic reactions
 Discuss Question
Answer: Option D. -> amphibolic reactions
Question 219. Entner-Doudoroff pathway is found in
  1.    both (a) and (b)
  2.    anaerobic prokaryotes
  3.    aerobic eukaryotes
  4.    aerobic prokaryotes
 Discuss Question
Answer: Option A. -> both (a) and (b)
Question 220. Anoxygenic photosynthetic bacteria oxidize
  1.    oxgyen
  2.    water
  3.    sulfide
  4.    ammonia
 Discuss Question
Answer: Option C. -> sulfide

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