05.J BIO, HN The Kreb's Cycle (PART J)

Formation of Acetyl CoA (Description)

An aerobic process that occurs when pyruvic acid (3-carbon compound) enters the mitochondrial matrix and combines with Coenzyme A to form acetyl CoA (2-carbon compound). During the process a CO2 is released and NAD+ is reduced NAD+ to produce NADH that will enter the ETC

Formation of Acetyl CoA (Location)

Occurs in the mitochondrial matrix to produce acetyl CoA

Formation of Acetyl CoA (Reactants)

2 Pyruvic acid
2 NAD+

Formation of Acetyl CoA (Products)

2 Acetyl CoA
2 NADH
2 CO2

Kreb's cycle (Description)

A process in which pyruvic acid is broken down into carbon dioxide in a series of energy-extracting reactions that produces ATP, NADH and FADH2
Also known as the citric acid cycle
Occurs in the matrix of the mitochondria

Kreb's cycle (Location)

Occurs in the fluid-filled matrix of the mitochondria

Kreb's cycle (Reactants)

2 Acetyl CoA
2 4-carbon molecules
2 ADP + 2Pi
6 NAD+
2 FAD

Kreb's cycle (Products)

Citric acid regenerates 4-C molecule
2 ATP
6 NADH
2 FADH2

Acetyl CoA

A 2-carbon compound that results when pyruvate acid is broken down in the presence of oxygen

Citric acid

A 6-carbon compound that results when the 4-carbon compound that is the starting material joins with acetyl CoA; also known as citrate