Science Ch 3 Vocab

Front 1

active transport

Back 1

energy requiring process in which transport proteins bind with particles and move them through a cell membrane

Front 2

cellular respiration

Back 2

process by which producers and consumers release stored energy from food molecules; series of chemical ractions used to release energy stored in food molecules

Front 3

diffusion

Back 3

a type of passive transport in cells in which molecules move from areas where there are more of them to areas where there are fewer of them

Front 4

endocytosis

Back 4

process by which a cell take in a substance by surronding it with the cell membrane

Front 5

enzymes

Back 5

a type of protein that regulates nearly all chemical reactions in cells; a type of protein that speeds up chemical reactions in the body without being charged or used up itself

Front 6

equilibrium

Back 6

occurs when molecules of one substance are spread evenly throughout another substance

Front 7

exocytosis

Back 7

process by which vsicles release their contents outside the cell

Front 8

fermentation

Back 8

process by which oxygen-lacking cells and some one-celled organisms release small amounts of energy from glucose molecules and produce wastes such as alcohol, carbon dioxide, and lactic acids

Front 9

inorganic compound

Back 9

compund, such as H20, that is made from elements other than carbon and whose atoms usually can be arranged in only one structure

Front 10

metabolism

Back 10

the total of all chemical reactions in an organism

Front 11

mixture

Back 11

a combination of substances in which the individual substances do not change or combine chemically but instead retain their own properties; can be gases, solids, liquids or any combination of them

Front 12

organic compound

Back 12

compunds that always contain hydrogen and carbon; carbohydrates, lipids, proteins and nucleic acids are organic compounds found in living things

Front 13

osmosis

Back 13

a type of passive transport that occurs when water diffuses through a cell membrane

Front 14

passive transport

Back 14

movement of substances through a cell membrane without the use of cellular energy; includes diffusion, osmosis, and facilitated diffusion

Front 15

photosynthesis

Back 15

process by which plants and many other producers use light energy to produce a simple sugar from carbon dioxide and water and give off oxygen