passive and active transport Flashcards

1
Q

passive transport

A
does not required expenditure of energy by the cell 
simple diffusion 
osmosis
facilitated diffusion 
bulk flow( filtration)
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2
Q

simple diffusion

A

goes right through the cell (flows form an area of high conc. to an area of low concentration

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3
Q

osmosis

A

water follows salt-

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4
Q

isotonic

A

both salt and water are at equal amounts

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5
Q

hypotonic

A

to little salt and too much water moves into cell causing it to hemolyzed and burst.

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6
Q

hypertonic

A

too much salt compare to solvent (water) this causes the cell to move water out of the cell and it shrinks (crenated)

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7
Q

facilitated diffusion

A

ion and protein channel along the membrane

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8
Q

filtration( bulk flow )

A

requires a difference in pressure ( hydrostatic pressure in blood vessels )

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9
Q

active transport

A

the usage of energy from the splitting of ATP. moving molecules across cell membrane against conc gradient

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10
Q

Membrane pumps

A

primary and secondary

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11
Q

primary

A

hydrolyses from ATP
changes the shape of transport of media
(sodium/pump ion channel )

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12
Q

secondary

A

uses potential energy in an ionic conc.
Antiporter - move Ca+ out of the cell
Symporter- moves substances in like glucose

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13
Q

Endocytosis

A

moves stuff into the cell by vesicles many types of endocytosis.

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14
Q

phagocytosis

A

endocytosis of large particles- cell eating

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15
Q

pinocytosis

A

endocytosis of ECF tha contains dissolved solutes (cell drinking)

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16
Q

receptor mediated endocytosis

A

ligands bind to cell membrane, receptor mediated endocytosis brings to specific receptors into cell

17
Q

Exocytosis

A

substances are removed from the cell
examples are nerve cells to release neurotransmitters
digestive enzymes, protein