movement of molecules

Question 1

Active movement

Answer 1

requires ATP

Question 2

Passive movement

Answer 2

no ATP needed

Question 3

Endocytosis

Answer 3

intake of molecules

Question 4

exocytosis

Answer 4

removal of substances from the cell

Question 5

Pinocytosis

Answer 5

drinking droplets of fluid

Question 6

Phagocytosis

Answer 6

eating particles

Question 7

Active transport

Answer 7

A protein pump uses ATP to push ions against their concentration gradient

Question 8

simple diffusion

Answer 8

movement of molecules from an area where they are concentrated to an area where they are less concentrated until an equilibrium is reached either directly through membrane or through channel proteins like sodium channels and potassium channels

Question 9

Osmosis

Answer 9

movement of water through a selectively permeable membrane from an area of higher water concentration to an area of lower water

Question 10

Facilitated diffusion

Answer 10

movement of glucose and amino acids across the membrane by protein carriers down their concentration gradient

Question 11

Filtration

Answer 11

molecules;es are pushed across a membrane from high pressure to lower pressure

Question 12

The rate of diffusion is increased if

Answer 12

• The temperature rises
• The concentration gradient increases
• The molecules are small
• the distance travelled is shorter