Passive/Active Transport vocab

Question 0

Concentration gradient

Answer 0

Difference in the concentration of a substance across a space

Question 1

Passive transport

Answer 1

Does not require energy from the cell

Question 2

Equilibrium

Answer 2

Concentration of a substance is equal throughout a space

Question 3

Diffusion

Answer 3

Movement of a substance down the substance’s concentration gradient

Question 4

Osmosis

Answer 4

Diffusion of water through a selectively permeable membrane

Question 5

Hypertonic solution

Answer 5

Causes a cell to shrink because of osmosis

Question 6

Hypotonic solution

Answer 6

Causes a cell to swell because of osmosis

Question 7

Isotonic solution

Answer 7

Produces no change in cell volume because of osmosis

Question 8

Ion channel

Answer 8

Transport protein through which ions can pass

Question 9

Carrier protein

Answer 9

Protein used to transport specific substances

Question 10

Facilitated diffusion

Answer 10

Carrier protein used in active transport

Question 11

Active transport

Answer 11

Passive transport using carrier proteins

Question 12

Sodium-potassium pump

Answer 12

Movement of a substance against the substance’s concentration gradient

Question 13

Endocytosis

Answer 13

Movement of a substance by a vesicles to the inside of a cell

Question 14

Exocytosis

Answer 14

Movement of a substance by a vesicle to the outside of a cell

Question 15

Receptor protein

Answer 15

Binds to a signal molecule, enabling the cell to respond to the signal molecule

Question 16

Second messenger

Answer 16

Acts as a signal molecule in the cytoplasm