Cell Processes: Moving In and Out of a Cell

Question 1

Describe Cell Membrane

Answer 1

A barrier that encloses and protects the cell, Allows certain substances to move into and out of the cell.

Question 2

Describe Active Transport

Answer 2

The movement of particles from areas of low concentration to high concentration; energy is required (ATP)

Question 3

Describe Passive Transport

Answer 3

The movement of particles from areas of high concentration; no energy is required

Question 4

Osmosis

Answer 4

The diffusion of water through a cell membrane

Question 5

Describe Concentration

Answer 5

How crowded together the particles are in a liquid

Question 6

Describe Exocytosis

Answer 6

The process in which large particles exit the cell

Question 7

Endocytosis

Answer 7

The process in which large particles enter a cell

Question 8

Channels

Answer 8

The passageways in a cell membrane

Question 9

Describe Vesicle

Answer 9

Small sacs that surround substances as they enter or exit cells

Question 10

Describe Diffusion

Answer 10

the movement of particles form areas of high concentration(crowded) to areas or low concentration(less crowded)

Question 11

Why is osmosis important to cells?

Answer 11

The concentration of water particles are kept in balance by osmosis.