Cell Transport Mechanism

Question 1

transport mechanism where no energy is required

Answer 1

passive transport

Question 2

a type of passive transport mechanism where molecules or ions move from an area of high concentration to area of low concentration until equilibrium is reached

Answer 2

diffusion

Question 3

a type of diffusion for nonpolar (O, CO2, N or vitamins) or uncharged molecules (water and urea) that don’t need facilitators

Answer 3

simple diffusion

Question 4

the solute moves across the lipid bilayer through membrane channels like ion specific channels for K, Cl, Na or Ca2

Answer 4

channel mediated facilitated diffusion

Question 5

solute, like glucose, binds to a specific carrier protein and is released after the carrier undergoes change in shape

Answer 5

carrier mediated facilitated diffusion

Question 6

type of diffusion in which water moves through a selectively permeable membrane from low to high concentration

Answer 6

osmosis

Question 7

solutions with higher concentration than the cell are called _______ and causes the cell to undergo _______

Answer 7

hypertonic, crenation (shrink)

Question 8

solutions with lower concentration than the cell are called _______ and causes the cell to undergo _______

Answer 8

hypotonic, hemolysis (swell)

Question 9

solutions that are as concentrated as the cell are called _______

Answer 9

isotonic

Question 10

transport mechanism that needs energy because the substance (Na, K, amino acids, monosaccharides) goes against the concentration gradient

Answer 10

active transport

Question 11

the most prevalent primary active transport mechanism

Answer 11

sodium-potassium pump

Question 12

secondary active transport mechanism which moves substances in the same direction across the membrane

Answer 12

symporters

Question 13

secondary active transport mechanism which moves substances in the opposite direction across the membrane

Answer 13

antiporters

Question 14

in the sodium potassium pump, _________ is released and _______ is absorbed

Answer 14

sodium, potassium

Question 15

the sodium potassium pump relies on the hydrolysis of _______ into ______ and _______

Answer 15

ATP, ADP, Phosphorus

Question 16

vesicles move the material across the membrane INTO the cell

Answer 16

endocytosis

Question 17

vesicles move the material across the membrane OUT of the cell

Answer 17

exocytosis

Question 18

ingestion of SOLID particles into the cell (cell eating)

Answer 18

phagocytosis

Question 19

ingestion of extracellular fluid into the cell (cell drinking)

Answer 19

pinocytosis/ bulk phase endocytosis

Question 20

vesicles transport material inside, across, then outside the opposite side of the cell

Answer 20

transcytosis