Q931
Pyruvic acid, the last product of glycolysis, is degraded to CO2 and H2 in
A.
Cytoplasm
B.
Inner membrane of mitochondria
C.
Matrix of mitochondria
AnswerD.
Matrix of chloroplasts
Answer: Option C
Solution
Answer: Option C
Solution:
Pyruvic acid, the last product of glycolysis, is degraded to CO2 and H2 in the Matrix of mitochondria.Glycolysis is a cytoplasmic pathway that breaks down glucose into two three-carbon compounds and generates energy.
The final step of glycolysis is catalyzed by pyruvate kinase to form pyruvate and another ATP. During fasting, glucagon activates protein kinase A which phosphorylates pyruvate kinase to inhibit it.