Question 1

A small molecule that is a building block of proteins

Accepted Answer

amino acid

Question 2

Force that holds molecules together

Accepted Answer

chemical bond

Question 3

Process that changes some chemical substances into others

Accepted Answer

chemical reaction

Question 4

Substance with a unique, fixed composition that consists of two or more elements

Accepted Answer

compound

Question 5

Pure substance that cannot be broken down into other types of substances

Accepted Answer

element

Question 6

Anything that takes up space and has mass

Accepted Answer

matter

Question 7

Energy needed to start a chemical reaction

Accepted Answer

activation energy

Question 8

Chemical reaction that occurs inside the cells of living things

Accepted Answer

biochemical reaction

Question 9

Protein that speeds up biochemical reactions

Accepted Answer

enzyme

Question 10

Sum of all the biochemical reactions in an organism

Accepted Answer

metabolism

Question 11

Substance that forms as the result of a chemical reaction

Accepted Answer

product

Question 12

Starting material in a chemical reaction

Accepted Answer

reactant

Question 13

T/F: In a chemical reaction, the quantity of each element does not change.

Accepted Answer

True

Answer

Maybe

Answer

False

Question 14

T/F: Anabolic reactions give off energy.

Accepted Answer

False

Answer

True

Answer

Maybe

Question 15

T/F: Only some chemical reactions need energy to get started.

Accepted Answer

False

Answer

Maybe

Answer

True

Question 16

Activities of enzymes depend on

Accepted Answer

All of these

Answer

ionic conditions

Answer

temperature

Answer

pH

Question 17

Reactions that take place inside cells are called?

Accepted Answer

Biochemical reactions

Answer

Metabolic reactions

Answer

Enzyme reactions

Answer

Cellular reactions

Question 18

The joining of amino acids to form a protein is a(n)?

Accepted Answer

Anabolic reaction

Answer

polypeptide reaction

Answer

Catabolic reaction

Answer

amino acid reaction

Question 19

A chemical reaction that absorbs energy

Accepted Answer

Endothermic reaction

Answer

Exothermic reaction

Answer

Energy reaction

Answer

Activation energy

Question 20

A chemical reaction that releases energy

Accepted Answer

Exothermic reaction

Answer

Chemical equation

Answer

Endothermic reaction

Answer

Energy reaction

Question 21

A chemical reaction involves the breaking and forming of _______________________?

Accepted Answer

chemical bonds

Answer

enzymes

Answer

polypeptides

Answer

water

Question 22

In a chemical reaction, all matter is?

Accepted Answer

conserved

Answer

evaporated

Answer

expended

Answer

metabolized

Question 23

What do we call the substances in food that are necessary for life and growth?

Accepted Answer

nutrients

Answer

carbohydrates

Answer

molecules

Answer

electrolytes

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