Module 2: Osmosis

Question 1

What is osmosis

Answer 1

The flow of water across a membrane, it is a type of passive diffusion through channels, down the concentration gradient

Question 2

Is osmosis passive or active

Answer 2

always passive

Question 3

What is osmolarity

Answer 3

the total solute particle concentration of a solution, also known as the osmotic pressure

Question 4

How does solute move in osmosis

Answer 4

from area of low concentration to are of high concentration

Question 5

What is iso-osmotic

Answer 5

two solutions with an equal osmolarity

Question 6

What is hyperosmotic

Answer 6

a solution whose osmolarity is higher than another, more solute

Question 7

What is hypo-osmotic

Answer 7

a solution whose osmolarity is lower than another, less solute

Question 8

What happens to a cell placed in a hypo-osmotic solution

Answer 8

The cell will swell, water will move from the solution into the cell

Question 9

What happens to a cell placed in a hyper-osmotic solution

Answer 9

The cell will shrink, water will move from the cell out to the solution

Question 10

What does it mean to be iso-osmotic

Answer 10

When two solutions have an equal osmolarity