chemical

Question 1

matter

Answer 1

anything that occupies space

Question 2

mass

Answer 2

amount of matter contained in the object

Question 3

weight

Answer 3

mass as affected by the pull of gravity

Question 4

atom

Answer 4

smallest quanity of an element

Question 5

molecule

Answer 5

group of two or more atoms held together by chemical bonds

Question 6

chemical compound

Answer 6

molecule made of two or more atoms

Question 7

radicals

Answer 7

unpaired outer valence shell electrons

Question 8

metabolic reaction

Answer 8

exergonic and endergonic

Question 9

exergonic

Answer 9

release energy

Question 10

endergonic

Answer 10

require energy

Question 11

chemical reactions

Answer 11

synthetic, decomposition, exchanges

Question 12

synthetic

Answer 12

two compounds bond to make one

Question 13

decomposition

Answer 13

larger molecule is broken to smaller

Question 14

exchanges

Answer 14

bonds are broken and reformed

Question 15

enzyme

Answer 15

decreases the activation energy required for a chemical reaction to occur

Question 16

inorganic

Answer 16

doesn’t contain both carbon and hydrogen

Question 17

organic

Answer 17

contains both carbon and hydrogen

Question 18

carbohydrate

Answer 18

provides essential body fuel

Question 19

lipid

Answer 19

provide fuel and biological compounds

Question 20

protein

Answer 20

made of amino acids, body tissue

Question 21

nucleotide

Answer 21

compounds for three building blocks, DNA and RNA

Question 22

acid

Answer 22

H+, lower pH

Question 23

Base

Answer 23

OH-, higher pH

Question 24

buffers

Answer 24

soak up hydrogen/hydroxide ion