Converting acids

Question

are fatty acids converted to glucose?if yes show the path

and if are not converted tell why

Answer 1

In most cases fatty acids cannot be converted directly into glucose in humans. This is because fatty acids are broken down into acetyl-CoA through a process called beta-oxidation, and acetyl-CoA cannot be used to make net glucose in the body. Major reason for this involves the citric acid cycle (Krebs cycle). When acetyl-CoA enters the cycle, its carbon atoms are ultimately released as carbon dioxide, meaning there is no net gain of carbon available for glucose production.

However, there is an important exception:

Odd-chain fatty acids can partially contribute to glucose production because they produce a molecule called propionyl-CoA, which can eventually be converted into succinyl-CoA and enter pathways involved in gluconeogenesis.

A simple summary:

Even-chain fatty acids generally cannot become glucose

Odd-chain fatty acids can contribute partially to glucose formation

This concept is very important in metabolism and is commonly tested in biochemistry and MCAT-style questions.