Question

In mitochondria during aerobic respiration decarboxylation does not occur during formation of

Answer 1

Once acetyl-CoA is formed, aerobic or anaerobic respiration can occur. When oxygen is present, the mitochondria will undergo aerobic respiration which leads to the Krebs cycle. However, if oxygen is not present, fermentation of the pyruvate molecule will occur.

Answer 2

Solution:

In mitochondria during aerobic respiration decarboxylation occur to form acetyl-CoA.

Explanation:

• Once glycolysis occurs in the cytoplasm, it produces pyruvate.
• In aerobic conditions, pyruvate continues on and into the matrix of mitochondria. Before the Kreb cycle takes place, oxidative decarboXylation occurs which converts pyruvate into acetyl-CoA. Acetyl-CoA then enters the Kreb cycle.
• But in anaerobic conditions, pyruvate moves into the type of anaerobic respiration called homolactic fermentation.