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 Multiple Choice QuestionsMultiple Choice Questions

61.

Decarboxylation is involved in

  • electron transport system

  • glycolysis

  • Krebs' cycle

  • lactic acid fermentation


62.

The process after glycolysis in anaerobic respiration is known as

  • fermentation

  • respiration

  • Krebs' cycle

  • decomposition


63.

Fermentation products of yeast are

  • H2O + CO2

  • Methyl alcohol + CO2

  • Methyl alcohol + water

  • Ethyl alcohol + CO2


64.

RQ for fatty substance/ fat is

  • unity

  • less than one

  • more than one

  • zero


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65.

Terminal cytochrome of respiratory chain which donates electrons to oxygen is :

  • cytochrome b

  • cytochrome c

  • cytochrome a

  • cytochrome a3


66.

How many ATP are formed by oxidation of one glucose molecular in liver cells ?

  • 36

  • 38

  • 2

  • 8


67.

Glycolysis occurs in :

  • cytoplasm

  • nucleus

  • mitochondria

  • both 'a' and 'c


68.

The presence of arginase confirms that :

  • urea cycle is operating

  • urea cycle may be operating

  • arginine is being converted into ornithine

  • arginine is being converted into citrulline


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69.

Glycolysis is found in cytoplasm of virtually all types of aerobic/ anaerobic cells. In this process glucose is converted into

  • PEP

  • acetyl CoA

  • pyruvic acid

  • citric acid


C.

pyruvic acid

In the process of glycolysis, one molecule of hexose sugar, i.e. glucose or fructose, a 6C-compound is splitted to form two molecules of a 3C- compound, pyruvic acid (CH3COCOOH).


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70.

In which of the following steps of citric acid cycle, COis evolved?

I. Citric acid – Ketoglutaric acid 

II. Succinic acid – Malic acid 

III. Malic acid – Oxaloacetic acid 

IV. α-ketoglutaric acid – Succinyl CoA

  • I and II only

  • I and IV only

  • II and III only

  • II and IV only

  • II and IV only


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