Question

31. Which category of carbon-based molecules includes sugars and starches?

A. unsaturated fatty acids
B. phospholipids
C. proteins
D. carbohydrates

Answer 1

Answer: D. carbohydrates

Step-by-step explanation:

Carbohydrates are molecules composed of carbon, hydrogen, and oxygen, and they include sugars and starches. Carbohydrates can be broken down to provide a source of usable chemical energy for cells.