KREB CYCLE Flashcards
1
Q
an allosteric enzyme, is inhibited by
NADH, ATP, and succinyl-CoA.
A
Citrate synthase
2
Q
The _______ provides the energy to drive step 1
A
hydrolysis
3
Q
Citrate and aconitate are ________; neither has a
stereocenter
A
Achiral
4
Q
Isocitrate is chiral; it has __ stereocenters and ___
stereoisomers are possible.
A
- 2
- 4
5
Q
is an allosteric enzyme; it is
inhibited by ATP and NADH, and activated by ADP and
NAD+
A
Isocitrate dehydrogenase
6
Q
This is the first and only energy-yielding step of the
cycle. A molecule of GTP is produced
A
formation of succinate
7
Q
Malate is ____and can exist as a pair of enantiomers;
It is produced in the cycle as a _____stereoisomer.
A
- chiral
- single
8
Q
what are the three feedback mechanisms of citric acid cycle
A
- Citrate Synthase
- Isocitrate dehydrogenase
- a-Ketoglutarate dehydrogenase complex
