Lesson 9- Membrane Transport

Question 1

Passive Transport

Answer 1

diffusion, facilitated diffusion, and osmosis

Question 2

Diffusion

Answer 2

molecules move from high to low concentration, no energy is used, only small uncharged particles can diffuse across membrane, moves randomly

Question 3

Facilitated Diffusion

Answer 3

uses carrier pr- to move large molecules across membrane, moves high to low concentration, no energy is used

Question 4

Osmosis

Answer 4

isotonic, hypotonic, hypertonic. the movement of water, no energy used, uses aquaporins to move polar substances across the bilayer

Question 5

Isotonic

Answer 5

the solute concentration is the same on inside and outside of the cell

Question 6

Hypotonic

Answer 6

the solute concentration is more inside the cell and less outside, h2o moves from environment to cell

Question 7

Hypertonic

Answer 7

the solute concentration is less inside the cell and more outside, h2o moves from cell to environment (shrink)

Question 8

Active Transport

Answer 8

protein pumps, endocytosis, and exocytosis

Question 9

Protein Pumps

Answer 9

carrier pr-s move molecules agaisnt the concentration gradient, requires energy

Question 10

Endocytosis

Answer 10

moves large molecules into the cell, requires energy to move molecules with or agaisnt the gradient (pinocytosis, phagocytosis, and R-A endocytosis)

Question 11

Pinocytosis

Answer 11

cell drinking. moves small particles of extracellular fluid and dissolved particles into the cell (intestines)

Question 12

Phagocytosis

Answer 12

cell eating. moves large droplets of extracellular fluid along with the large particles into the cell (white blood cells)

Question 13

Receptor-Assisted Endocytosis

Answer 13

specific molecules attract pr- molecules on the cell membrane and triggers the intake of the molecules via endocytosis

Question 14

Exocytosis

Answer 14

used to move large molecules out of the cell, requires energy to move molecules with or agaisnt the gradient