Prep & Krebs Cycle

Inputs of the PREP step

2 pyruvate

What oxidizes pyruvate?

NAD

What happens when pyruvate is oxidized?

It loses 1 of its 3 carbon

What does NAD become when it oxidizes pyruvate

NADH

What is produced in the oxidation of pyruvate?

Co2 (the 1 carbon that leaves)

What attached to pyruvate after it is oxidized?

CoA

What molecule is formed that enters the krebs cycle?

Acetyl CoA (2)

Total yield per 2 pyruvate in PREP

2 CO2

2 NADH

2 Acetyl CoA

Each Acetyl CoA yields: ___ ATP, ___ NADHs, ______ FADH₂, and ___ CO₂

1

3

1

2

How many kreb cycles occur at once?

2

Acetyl CoA donates 2 carbon to the 4 carbon molecule ________ to form 6 carbon ________

oxaloacetate

citrate

Total yield per 2 acetyl CoAs: ______CO₂, ____ ATP, ___ NADHs, _____ FADH₂s

4

2

6

2

The ATP in _______ and _______ is substrate-level phosplorylation

Glycolysis

The Krebs/Citric acid cycle