The smallest unit of any substance is the . a. atom b. molecule c. cell

Why are carbohydrates called "carbohydrates"? a. Apparently, carbohydrates contain water molecules. b. The composition (rather than the actual structure) of a carbohydrate seems to suggest that the molecule contains water molecules. c. carbohydrates are made from C and water. d. none of the above

The genetic material (DNA) stored within each and every cell of the body is organized into: 1. a. 23 chromosomes b. 46 chromosomes C. 20 amino acids d. Numerous monosaccharides

Atoms are incredibly tiny, so small that most microscopes can't even see them, but atoms themselves are made of even smaller particles: protons, neutrons, and electrons. Which of the following describes where protons are located in an atom?   A. A shell   B. The nucleus   C. Both the nucleus and a shell