THE TRICARBOXYLİC ACID CYCLE

mitochondrial matrix

The tricarboxylic acid occurs in the ______________ of the cell

succinate, fumarate, malate

What are the 3 four-carbon dicarboxylic acid intermediates of the TCA?

oxaloacetate

Which substrate is regenerated after one cycle of the Kreb's cycle?

3

How many NADHs are generated after one cycle of the TCА?

1

How many FADH2 after one cycle of the TCА?

1

How many ATP after one cycle of the TCА?

1, 3, 4

Which step is irreversible?

atp/adp ratio, nadh/nad+ ratio, acetyl coA concentration

What 3 factors control pyruvate dehydrogenase?

3 irreversibe steps of CAC

3 and 4

step involve loss of carbon

2 lost; 2nadh

by the end of step 4 how many carbons are lost? How many NADH molecules are formed?

7

identify the only step of the cac that directly generates gtp