Question

How would a sugar molecule serve as the basis to build a lipid molecule?
Responses
A Sugars have the same structure as lipids, but with different elements. Sugars have the same structure as lipids, but with different elements.
B Sugars provide the phosphorus and nitrogen used to build high-energy lipids.Sugars provide the phosphorus and nitrogen used to build high-energy lipids.
C Sugars provide the carbon, hydrogen, and oxygen used to build a lipid.Sugars provide the carbon, hydrogen, and oxygen used to build a lipid.
D Sugars provide the energy for the cell to build lipids from raw materials.Sugars provide the energy for the cell to build lipids from raw materials.

Answer 1

C

Sugars (e.g., glucose) are broken down to intermediates like glycerol-3-phosphate and acetyl-CoA. Those intermediates supply the carbon, hydrogen and oxygen atoms used to assemble the glycerol backbone and the fatty acid chains of lipids (glycolysis → DHAP → glycerol-3-P; pyruvate → acetyl-CoA → fatty acid synthesis).