Question

Which two systems are most directly involved in providing molecules needed for the synthesis of fats in human cells?

Answer 1

Th answers are :  Digestive system  and Circulatory system. The two systems which are most directly involved in providing molecules needed for the synthesis of fats in human cells are Digestive system  and Circulatory system.  

Answer 2

Out of the following given choices;

a) digestive and circulatory

b) excretory and digestive

c) reproductive and circulatory

d) immune and muscular.

The answer is A. The main precursor of  fatty acids synthesis is acetyl-CoA. It can be formed from the respiration of carbohydrates in the glycolytic pathway.   The other precursor is NADPH and NADH which are reducing factors in the body. They require H+ ions. H+ is regulated by the circulatory/respiratory system as pH of blood is regulated.