6: Transport Mechanisms Flashcards
1
Q
diffusion
A
atomic or molecular movement in a gradient from an area of high concentration to an area of low concentration
2
Q
osmosis
A
diffusion of water through a selectively/differentially permeable membrane
3
Q
passive diffusion includes
A
facilitated and simple diffusion
4
Q
active diffusion includes
A
carrier mediated active transport
5
Q
active transport
A
transport of nutrients faster against the natural diffusion gradient and rate with the use of pumps and energy
monosaccharides, amino acids, organic acids, phosphates, metal ions
6
Q
endocytosis
A
cell encloses substance in its membrane, forms a vacuole and engulfs the substance
7
Q
phagocytosis
A
entire cell or large molecule is ingested
accomplished by WBCs and amoebas
8
Q
pinocytosis
A
ingestion of liquids or molecules in a solution
