Bio Chemistry

BIOCHEMISTRY 3(2+1)

Lesson 20 : The Citric Acid Cycle

Net reaction for citric acid cycle

Energy Budget so far from 1 molecule of glucose:

glycolysis	2 ATP	2 NADH
Prep Step		2 NADHs
TCA	2 ATP	6 NADH	2 QH2
	4 ATP	10 NADH

ATP Production:

glycolysis	2 ATP	6 ATP equivalents
Prep Step		6 ATP equivalents
TCA	2 ATP	18 ATP equivalents	+ 4 ATP equivalents
	4 ATP	34 ATP	= 38 ATPs maximum
substrate (ox. phos.)
level phos.