The Cell In Action

Question 1

the movement of particles from regions of higher density to regions of lower density.

Answer 1

diffusion

Question 2

the diffusion of water through semipermeable membrane

Answer 2

osmosis

Question 3

the movement of substances across a cell membrane without the use of energy by the cell

Answer 3

passive transport

Question 4

the movement of substances across the cell membrane that requires the cell to use energy.

Answer 4

active transport

Question 5

the process by which a cell membrane surrounds a particle and encloses the particle into the cell.

Answer 5

endocytosis

Question 6

the process in which a cell releases a particle by enclosing the particle in a vesicle that then moves to the cell surface and fuses with the cell membrane.

Answer 6

exocytosis

Question 7

the process by which plants, algae, and some bacteria use sunlight, carbon dioxide, and water to make food.

Answer 7

photosynthesis

Question 8

the process by which cells use oxygen to produce energy from food.

Answer 8

cellular respiration