Multiple choice

Assertion (A): The inhibition of glycolysis by oxygen is referred to as Pasteur effect. Reason (R): This is due to inhibition of the enzyme phosphofructokinase by ATP and citrate (formed in the presence of O2).

Directions: In the following question, there are two statements, Assertion (A) and Reason (R), consider both the statements independently and mark your answer as:

1. if A and R both are correct and R is the correct explanation of A 
2. if A and R both are correct and R is not the correct explanation of A 
3. if A is correct and R is incorrect 
4. if A is incorrect and R is correct 
5. if A and R both are incorrect

  1. 1

  2. 2

  3. 3

  4. 4

  5. 5
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Both Assertion (A) and Reason (R) are correct and R is the correct explanation of A. The inhibition of glycolysis by oxygen is referred to as Pasteur effect.  This is due to inhibition of the enzyme phosphofructokinase by ATP and citrate (formed in the presence of O2).

Keep practicing — related questions