Pentose Phosphate Pathway Flashcards
1
Q
What is ribose-5-P a precursor for? (5)
A
DNA & RNA synthesis, ATP, NADH, FADH2, CoASH
2
Q
What is NADPH a precursor for? (3)
A
Fatty acid synthesis, cholesterol and steroid hormones and protection from antioxidants.
3
Q
What are the two phases of the PPP
A
Oxidative and non-oxidative phase
4
Q
What happens in the oxidative phase of the PPP?
A
Ribose-5-P and NADPH are formed
5
Q
What happens in the non-oxidative phase of the PPP?
A
Recycling of pentose sugars into hexose sugars.
6
Q
What are the key metabolic products of the pentose phosphate pathway?
A
Ribose-5-P and NADPH
7
Q
What general role does NADPH play in metabolism compared to NADH?
A
NADH is mainly involved in catabolism whereas NADPH is in anabolic processes and detoxification.
