Biology Words

Front 1

endocytosis

Back 1

the process by which a cell membrane engulfs particles of molecules outside the cell and pinches around it to form a vesicle that carries the material into the cell.

Front 2

exocytosis

Back 2

The process by which a vesicle transports particles or molecules for within the cell to the cell membrane, where it fuses with the membrane and deposits its contents outside the cell.

Front 3

osmosis

Back 3

the diffusion of a fluid, such as water, across a membrane to equalize the concentrations of solutions on either side of the membrane.

Front 4

phospholipid

Back 4

lipid with a phosphate head attached to two long lipid tails.

Front 5

phospholipid bilayer

Back 5

the double layer of phospholipid molecules that makes up the membranes of a cell.

Front 6

semi-permeable, selectively permeable

Back 6

allowing only certain substances to pass through, while blocking passage of other substances.

Front 7

diffuse(v) diffusion(n)

Back 7

to move, or the movement of, substances down a concentration gradient from higher to lower concentration.

Front 8

active transport

Back 8

movement of a substance form lower to higher concentration through a protein carrier, requiring energy input usually provided by conversion of ATP to ADP

Front 9

facilitated diffusion

Back 9

movement of substance from higher to lower concentration through a protein channel, without the need for input of energy.

Front 10

passive transport

Back 10

same as facilitated diffusion.

Front 11

macromolecule

Back 11

a large biological molecule such as a protein include such as a protein include acid, or carbohydrate made of one or more chains of smaller sub units linked together.

Front 12

lipid bilayer

Back 12

the double layer of lipids in cell or organelle membranes

Front 13

contrast

Back 13

(N) the fact of comparing two or more things in order to show the differences between them. (V) to compare two things in order to show the differences between them

Front 14

respiration

Back 14

(N) the act of breathing.

Front 15

aerobic

Back 15

(ADJ) needing oxygen.

Front 16

photosynthesis

Back 16

(N)the process by which green plants turn carbon dioxide and water into food using energy obtained from light from the sun

Front 17

Structure

Back 17

(N) the way in which the parts of something are connected together, arranged, or organized; a particular arrangement of parts
(V)to arrange or organize something into a system or pattern.

Front 18

anaerobic

Back 18

(ADJ) not needed oxygen.

Front 19

mitochondria

Back 19

(N) a small part found in most cells, in which the energy in food is released

Front 20

magnifying glass

Back 20

N a piece of glass, usually with a handle, that you look through and that makes things look bigger than they really are