Cell Processes (Biology 004)

Question 1

How can hydrophilic molecules pass through the plasma membrane

Answer 1

Diffusion through the transport protein

Question 2

Factors that affect diffusion

Answer 2

Size of molecules, temperature, state of matter, concentration

Question 3

Difference between active and passive transport

Answer 3

Active transport requires energy and passive does not

Question 4

What is osmosis

Answer 4

Net movement of water molecules

Question 5

What is osmoregulation

Answer 5

Maintaining a balance of salt and water across all membranes

Question 6

What happens to an animal cell in a hypotonic solution

Answer 6

Animal cell becomes lysed, explodes

Question 7

What happens to an animal cell in a isotonic solution

Answer 7

Does not change

Question 8

What happens to an animal cell in a hypertonic solution

Answer 8

Animal cell will shrivel

Question 9

What does it mean to have a small SA : VOL ratio

Answer 9

Cell becomes bigger, slower diffusion

Question 10

What does it mean to have a large SA : VOL ratio

Answer 10

Cell becomes smaller, faster diffusion.