Cell Membrane

Question 1

Exocytosis

Answer 1

Moving very large particles out of the cell

Question 2

Phagocytosis

Answer 2

• the ingestion of bacteria or other material
• called “cell eating”
• ex: white blood cells engulfing bacteria

Question 3

Contractile Vacuole

Answer 3

A vacuole that expels excess liquid on contraction

Question 4

Osmosis

Answer 4

The diffusion of water across a membrane

Question 5

Facilitated Diffusion

Answer 5

Uses transport proteins to help move materials from high to low concentration

Question 6

Plasmolysis

Answer 6

Contraction of the protoplast of a plant cell as a result of loss of water from the cell

Question 7

Vesicle

Answer 7

A fluid or air-filled cavity or sac

Question 8

Concentration gradient

Answer 8

The process of particles moving through a solution or gas from an area of high concentration to an area of low concentration

Question 9

Equilibrium

Answer 9

The balanced internal condition of the cell

Question 10

Turgor pressure

Answer 10

the pressure of water pushing the cell membrane against the cell wall of a plant cell

Question 11

Phagocyte

Answer 11

a type of cell within the body that is capable of engulfing and absorbing bacteria and other small cells and particles

Question 12

Endocytosis

Answer 12

Involves moving large particles into the cell

Question 13

Ion channel

Answer 13

Allows the flow of ions across the cell membrane

Question 14

Cytolysis

Answer 14

Occurs when a cell bursts

Question 15

Isotonic

Answer 15

the total concentration of dissolved solutes is the same in both of them

Question 16

Hypotonic

Answer 16

Occurs whenever water moves into the cells causing them to swell and burst

Question 17

Hypertonic

Answer 17

Occurs whenever water moves out of a cell and the cell shrinks in size

Question 18

Diffusion

Answer 18

Moves particles from high concentration to low concentration

Question 19

Passive transport

Answer 19

• does not require energy

- moves materials high to low concentration

Question 20

Active transport

Answer 20

• requires energy

- low to high concentration

Question 21

Sodium potassium pump

Answer 21

An example of active transport

Question 22

Pinocytosis

Answer 22

• taking in large liquid droplets

- also known as “cell drinking”

Question 23

Carrier protein

Answer 23

• they move materials across the membrane
• not extended across the membrane
• they change shape to help move the materials