Ch 3 Vocab

Question 1

Facilitated diffusion

Answer 1

Needs to pass through membrane in transport protein. Polar or large molecules.

Question 2

Active transport

Answer 2

Movement of molecule through membrane requires transport protein and energy. Moves substance against concentration gradient ( moves less to more)

Question 3

Osmosis

Answer 3

Movement of water down its concentration gradient (lower to higher concentration)

Question 4

Hypotonic

Answer 4

Higher solute concentration inside cell, water moves inside

Question 5

Hypertonic

Answer 5

Higher solute concentration outside cell, water moves out of cell

Question 6

Isotonic

Answer 6

Concentration of solute outside and inside cell equal, no net change in water inside vs outside

Question 7

Endocytosis

Answer 7

Cells eating and drinking (forms vesicles)

Question 8

Exocytosis

Answer 8

Cells removing waste and secretions

Question 9

Simple diffusion

Answer 9

Direct passage through plasma membrane with no assistance from molecule. Oxygen, carbon dioxide, small with no charge.

Question 10

Selectively permeable

Answer 10

Allows only certain materials to pass through