Chapter 6- Chemisty of Life

Question 0

acid

Answer 0

any substance that forms hydrogen ions in water

Question 1

atom

Answer 1

smallest particle of an element that has characteristics of that element

Question 2

base

Answer 2

any substance that forms hydroxide in water

Question 3

compound

Answer 3

substance that is composed of atoms of 2 or more different elements

Question 4

covalent bond

Answer 4

when 2 atoms share electrons

Question 5

element

Answer 5

everything

Question 6

ion

Answer 6

charged particle

Question 7

ionic bond

Answer 7

attractive force between 2 ions of opposite charge

Question 8

isotope

Answer 8

atoms of the same elect that have different number of neutrons

Question 9

metabolism

Answer 9

all of the chemical reactions that occur within an organism

Question 10

mixture

Answer 10

combination of substances in which the individual components retain their own properties

Question 11

molecule

Answer 11

group of atoms held together by covalent bonds

Question 12

pH

Answer 12

how acidic or basic a solution is

Question 13

solution

Answer 13

a mixture in which one or more substances are distributed evenly in another substance

Question 14

diffusion

Answer 14

movement of particles from an area of high to low

Question 15

dynamic equilibrium

Answer 15

result of diffusion where there is a continuous movement of particles but no overall change

Question 16

hydrogen bond

Answer 16

a attraction of opposite charges between hydrogen and oxygen

Question 17

polar molecule

Answer 17

a molecule with an unequal distribution of charge

Question 18

amino acid

Answer 18

basic building blocks of proteins

Question 19

carbohydrate

Answer 19

Carbon hydrogen and oxygen 2-1-1

Question 20

enzyme

Answer 20

protein that changes the rate of a chemical reaction

Question 21

isomer

Answer 21

compounds that have the same chemical formula but different 3D structures

Question 22

lipid

Answer 22

bio molecule made up of mostly carbon and hydrogen with little oxygen

Question 23

nuclecid acid

Answer 23

stores cellular information in the form of a code

Question 24

nucleotide

Answer 24

polymers made up of smaller subunits

Question 25

peptide bond

Answer 25

covalent bond formed between amino acids

Question 26

polymer

Answer 26

large molecule formed when many smaller molecules bond together