Transport Across the Cell Membrane (lesson 6)

Question 1

What does solute mean?

Answer 1

Substance dissolved in the solvent

Question 2

What does solvent mean?

Answer 2

Solute dissolved IN IT

Question 3

What does solution mean?

Answer 3

Mixture of solute and solvent

Question 4

What does diffusion mean?

Answer 4

Movement of solvent from high to low concentration through membrane

Question 5

What is osmosis?

Answer 5

Movement if water along its concentration gradient

Question 6

What is isotonic solution?

Answer 6

Two solutions have equal concentration

Question 7

What is hypotonic solution?

Answer 7

lower concentration of solute then the cell

Question 8

What is hypertonic solution?

Answer 8

Higher concentration of solutes on the outside of a cell than on the inside of the cell

Question 9

What determines the rate of diffusion? (4 Factors)

Answer 9

1) Steepness of the concentration gradient

2) Temperature

3) Surface area

4) Type of molecule or ion diffusing

Question 10

What is active transport?

Answer 10

Energy from cell moves substances across its membrane

Question 11

What are the two types of active transport

Answer 11

1) Ion pumps

2) Bulk transport: Endocytosis and exocytosis

Question 12

What is a simple definition of endocytosis?

Answer 12

cells take in substances by wrapping them in a small bubble (vesice)

Question 13

What is a simple definition of exocytosis?

Answer 13

Cells move large materials out by using small bubbles (vesicles)