Question

Match each product of pyruvate metabolism with the condition under which it is produced.

Answer 1

Answer: The products of pyruvate metabolism are lactate, ethanol and acetyl CoA

Explanation:

Lactate: Lactate is produced by anaerobic fermentation that takes place in the skeletal muscles in humans.

Ethanol: Ethanol is produced through fermentation process yeast and bacteria.

Acetyl CoA: Aerobic Oxidation of pyruvate give rise to acetyl CoA is which the starting molecule in the citric acid cycle.

Answer 2

Answer:

Pyruvate under aerobic condition is converted to acetyl CoA by pyruvate dehydrogenase which enters the TCA cycle for complete oxidation or used for fatty acids synthesis.

Under anaerobic condition pyruvate can be converted to lactate by lactate dehydrogenase, It can also be converted into the amino acid alanine by the enzyme alanine transaminase .

Pyruvate may be channeled back to glucose through gluconeogenesis by converting pyruvate to oxaloacetate which is also a precursor for malete and aspartate shuttle.