Biology 1610

Front 1

a type of endocytosis involving large, particulate substances, accomplished mainly by macrophages, neutrophils, and dendritic cells

Back 1

Phagocytosis

Front 2

Trans-membrane protein that helps a certain substance or class of closely related substances to cross the membrane.

Back 2

Transport Protein

Front 3

a special transport protein in the plasma membrane of animal cells that transport sodium out of the cell and potassium into the sell against the concentration gradients

Back 3

Sodium-potassium pump

Front 4

a property of biological membranes that allows some substances more easily than others

Back 4

Selective permeability

Front 5

the movement of specific molecules into a cell by the inward budding of membranous vesicles containing proteins with receptor sites specific to the molecules being taken in; enable a cell to acquire bulk quantities of specific substances.

Back 5

receptor-mediated endocytosis

Front 6

a type of endocytosis in which the cell ingests extracellular fluid and it's dissolved solutes.

Back 6

Pinocytosis

Front 7

a protein appendage loosely bound to the surface of a membrane and not embedded in a lipid bilayer

Back 7

Peripheral Protein

Front 8

the diffusion of a substance across a biological membrane

Back 8

Passive Transport

Front 9

diffusion of water across a semi-permeable membrane

Back 9

Osmosis

Front 10

molecule that binds specifically to a receptor site of another molecule

Back 10

Ligand

Front 11

Having the same solute concentration as another solution

Back 11

Isotonic Solution

Front 12

typically a trans-membrane protein with hydrophobic regions that completely spans the hydrophobic interior of the membrane

Back 12

integral protein

Front 13

in comparing two solutions, referring to the one with the lower solute concentration

Back 13

Hypotonic Solution

Front 14

in comparing two solutions, referring to the one with the greater solute concentration

Back 14

Hypertonic Solution

Front 15

a protein channel in a cell membrane that opens or closes in response to a particular stimulus

Back 15

Gated Channel

Front 16

the spontaneous passage of molecules and ions, bound to specific carrier proteins, across a biological membrane down their concentration gradients

Back 16

Facilitated Diffusion

Front 17

the cellular secretion of macromolecules by the fusion of vesicles with the plasma membrane

Back 17

Exocytosis

Front 18

the cellular uptake of macromolecules and particulate substances by localized regions of the plasma membrane that surround the substance and pinch off to form an inter-cellular vesicle

Back 18

Endocytosis

Front 19

the spontaneous tendency of a substance to move down its concentration gradient from a more concentrated to a less concentrated

Back 19

Diffusion

Front 20

a coupling of the "downhill" diffusion of one substance to the "uphill" transport of another against its own concentration gradient.

Back 20

Cotransport