Cell transport

Question 1

movement of substances across a cell membrane without using energy

Answer 1

passive transport

Question 2

occurs when a substance moves from where it is more concentrated to less concentrated; a form of passive transport

Answer 2

diffusion

Question 3

another word for concentrated

Answer 3

crowded

Question 4

the diffusion of water through a membrane; a form of passive transport

Answer 4

osmosis

Question 5

occurs when molecules pass through the membrane using special transport proteins

Answer 5

facilitated diffusion

Question 6

proteins that carry large molecules like glucose across the membrane

Answer 6

carrier proteins

Question 7

proteins that carry ions through the cell membrane

Answer 7

channel proteins

Question 8

active transport

Answer 8

movement of substances across a cell membrane using energy

Question 9

endocytosis

Answer 9

a cell takes in a substance by surrounding it with its membrane

Question 10

exocytosis

Answer 10

a cell uses vesicles to release contents outside the cell

Question 11

why do cells stay small?

Answer 11

the cell’s volume has to be big compared to its surface area