Science - Chapter 2

Front 1

Cell

Back 1

a membrane-covered structure that contains all of the materials necessary for life

Front 2

Stimulus

Back 2

a change in an organism's environment that affects the activity of the organism

Front 3

Homeostasis

Back 3

the maintenance of a stable internal environment

Front 4

Asexual reproduction

Back 4

a single parent produces offspring that are identical to the parent

Front 5

Sexual reproduction

Back 5

requires two parents to produce offspring that will share characteristics of both parents

Front 6

DNA

Back 6

deoxyribonucleic acid - the cells of all living things

Front 7

Heredity

Back 7

the transmission of chacteristics from one generation to the next

Front 8

Metabolism

Back 8

the total of all of the chmical activites that it performs

Front 9

Producers

Back 9

organisms such as plants. they can produce their own food

Front 10

Consumer

Back 10

organisms that must eat other organisms to get food

Front 11

Decomposer

Back 11

organisms that get their food by braking down the nutrients in dead organisms or animals wastes

Front 12

Protein

Back 12

large molecules that are made up of subunits called amino acids

Front 13

Carbohydrates

Back 13

are a group of compounds made of sugars

Front 14

Phospholipids

Back 14

are the molecules that form much of the cell membrane

Front 15

Nucleic acids

Back 15

are compounds made up of subunits called nucleotides

Front 16

ATP
Adenosine triphosphate

Back 16

the major ffuel used for all cell activities that require energy