Topic 2.9 - Mechanisms of Transport 𖦹⋆｡°✩

Question 1

what is passive transport

Answer 1

the net movement of molecules down their concentration gradient

Question 2

what do differences in relative solute concentration facilitate

Answer 2

it can facilitate osmosis

Question 3

what are protein pumps

Answer 3

carrier proteins used in active transport that require ATP. they establish and maintain concentration gradients

Question 4

what does the movement of large molecules into and out of cells require

Answer 4

energy

Question 5

what happens during endocytosis

Answer 5

the cell uses energy to take in macromolecules and particulate matter by forming new vesicles derived from the plasma membrane

Question 6

what are the types of endocytosis

Answer 6

phagocytosis, pinocytosis, and receptor-mediated endocytosis

Question 7

what happens during exocytosis

Answer 7

internal vesicles use energy to fuse with the plasma membrane and secrete large macromolecules out of the cell

Question 8

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