The Krebs Cycle

Question 1

where does it occur?

krebs

Answer 1

matrix of mitochondria

Question 2

stages of the krebs cycle

Answer 2

• acetyl coA from link reaction joins 4c compound to make 6c compound
• coenzyme A recycled to be reused in link reaction
• 6c compound decarboxylated (-CO2) and dehydrogenated (NAD -> NADH) to make 5c compound
• 5c compound decarboxylated and converted to 4c compound, generating NADH, FADH and ATP via substrate level phosphorylation

Question 3

substrate level phosphorylation

Answer 3

the creation of ATP without ATPsynthase

Question 4

products of the krebs cycle

Answer 4

3x NADH
1x ATP
1x FADH
2x CO2