Chap 5

Question 1

Active Transport

Answer 1

method of transporting material that requires energy

Question 2

Diffusion

Answer 2

passive transport process of low-molecular weight material according to its concentration gradient

Question 3

endocytosis

Answer 3

type of active transport that moves substances, including fluids and particles, into a cell

Question 4

Exocytosis

Answer 4

process of passing bulk material out of a cell

Question 5

Hydrophilic

Answer 5

molecule with the ability to bond with water; “water-loving”

Question 6

Hydrophobic

Answer 6

molecule that does not have the ability to bond with water; “water-hating”

Question 7

Osmosis

Answer 7

transport of water through a semipermeable membrane according to the water’s concentration gradient across the membrane that results from the presence of solute that cannot pass through the membrane

Question 8

Passive Transport

Answer 8

method of transporting material through a membrane that does not require energy

Question 9

selectively permeable

Answer 9

membrane characteristic that allows some substances through (also known as semipermeable)

Question 10

List the functions of the Plasma Membrane?

Answer 10

Maintain cell shape/structure
Receptors for chemical messengers
Enzymatic activity
Cell-cell recognition (Proteins)
Attachment to adjacent cells
Transport of substances

Question 11

Passive Transport

Answer 11

Doesn’t require energy and goes with the concentration gradient
mode of transport is Diffusion (h2o)
Osmosis (h2o)
Facilitated diffusion (glucose, ions)

Question 12

Active Transport

Answer 12

Does require energy and goes against the concentration gradient.
modes of transport
Active transport ( salt, glucose)
exocytosis (neurotransmitters)
endocytosis (cholesterol)