Practical #1 Lab 7

Question 1

What is Diffusion?

Answer 1

Movement of particles or molecules from a region of higher concentration to a region of low concentration

Question 2

What is Osmosis?

Answer 2

The movement of a water molecule through a semipermeable from a region of higher water concentration to a region with less water concentration

Question 3

What is Hypotonic?

Answer 3

Lower concentration of solutes outside the cell than inside. Wants to take in H2O

Question 4

What is Isotonic?

Answer 4

Equal concentrations of solutes inside and outside of the cell membrane

Question 5

What is Hypertonic?

Answer 5

Higher concentration of solutes outside the cell than inside. Wants to push H2O out

Question 6

What happens when a cell is placed in a Hypertonic solution?

Answer 6

The cell loses water and shrivels up

Question 7

What happens when a cell is placed in a Hypotonic solution?

Answer 7

The cell absorbs water, swells, and bursts

Question 8

What happens when a cell is placed in an Isotonic solution?

Answer 8

The cells are normal

Question 9

Difference between a plant and animal cell in a Hypotonic solution?

Answer 9

In a hypotonic solution, the solute concentration is lower outside of the cells than inside of the cells. As a result water wants to rush into both plant and animal cells, but because animal cells do not have a cell wall they can only hold so much before they burst.. The plant cell will restrict how much water the plant cell can take in without bursting

Question 10

Difference between a plant and animal cell in a Hypertonic Solution?

Answer 10

In a hypertonic solution, water rushes out of both plant and animal cells. Both plant and animal cells become dehydrated, shrivel up, shrink, and lose all function until restored back to hypotonic or isotonic conditions

Question 11

Difference between a plant and animal cell in a isotonic solution?

Answer 11

No change occurs in the cells