Chapter 2

Question 1

the smallest units of matter that cannot be broken down into anything simpler that retains that element’s properties

Answer 1

Atoms

Question 2

Atoms consist of subatomic particles

Answer 2

Protons, Neutrons, and Electrons

Question 3

atoms consist of

Answer 3

an atomic nucleus, negatively charged electrons

Question 4

an attraction between atoms

Answer 4

Chemical bond

Question 5

an atom or molecule with a net electric charge due to the loss or gain of one or more electrons

Answer 5

Ion

Question 6

a group of atoms bonded together, representing the smallest fundamental unit of a compound that can take part in a chemical reaction

Answer 6

Molecule

Question 7

five main characteristics of water

Answer 7

High polarity, high specific heat, high hear of vaporization, low density as a solid, and attraction to other polar molecules.

Question 8

a measure of how acidic/basic water is

Answer 8

pH

Question 9

fatty compounds that perform a variety of functions in your body

Answer 9

Lipids

Question 10

a type of macronutrient found in many foods and beverages

Answer 10

Carbohydrates

Question 11

large, complex molecules that play many important roles in the body

Answer 11

Proteins

Question 12

large biomolecules that play essential roles in all cells and viruses

Answer 12

Nucleic acids

Question 13

proteins that help speed up metabolism or the chemical reactions in our bodies

Answer 13

Enzymes