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The process by which there is inhibition of aerobic respiration by atmospheric oxygen is

a)

Pasteur’s effect

b)

Calvin’s effect

c)

Darwin’s effect

d)

None of these


Question ID - 4954 :-

The process by which there is inhibition of aerobic respiration by atmospheric oxygen is

a)

Pasteur’s effect

b)

Calvin’s effect

c)

Darwin’s effect

d)

None of these

1 Answer
5876 Votes
3537

Answer Key : (a) -

(a)

Louis Pasteur observed that yeast cells grew rapidly in air but used little sugar and produced little carbon dioxide and ethanol. Under anaerobic conditions, they grew slower but used more sugar and produced more carbon dioxide and ethanol. This phenomenon of inhibition of breakdown of carbohydrate and production of ethanol is known as Pasteur effect. Biochemically, Pasteur effect is an Allosteric inhibition of phosphofructokinase enzyme in the presence of oxygen.



Next Question :

More carbon dioxide is evolved than the volume of oxygen consumed when the respiratory substrate is

a)

Fat

b)

Sucrose

c)

Glucose

d)

Organic acid


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