Ketones, alcohols, aldehydes and organic acids are four of the organic compounds found in all living cells. What do these four classes of organic compounds share?

Ketone share acetyl-CoA, aldehyde share dehydrogenase-2, and organic acid used in a redox reaction.

Explanation:

Ketone present in the living cell form acetyl-CoA which plays an important role in a citric acid cycle which occurs in mitochondria. Ketones are also used to make acetyl-CoA chain in brain cells forming a fatty acid chains.Organic acids are used in many cellular process like the transpiration process, stomatal processes, in a redox reaction, in CO2 metabolism.Aldehyde present in cell share dehydrogenase-2.

D-no effect on the rate