Unit 7 Osmosis

Question 1

Water molecules can travel directly across a ____________ membrane as they are so _______ or they can travel through proteins called __________ (more efficient).

Answer 1

semipermeable, small, aquaporins

Question 2

Osmosis: Water travelling through the__________

Answer 2

membrane

Question 3

Like diffusion, water molecules travel from an area with a _______ concentration to the _____ concentration

Answer 3

high, low

Question 4

Water travelling through areas where there is a _____ _________ concentration.

Answer 4

higher, solute

Question 5

Hypertonic Area: the areas of ____ solute concentration.

Answer 5

high

Question 6

U-tube. There are two parts of the U-tube, one on the _____ and one on the ___ side. They both filled with water. But, when the right side is filled with salt, the water on the left side will _______ to the right side of the U-tube, and the water on the left side will _______ and will have more water on the right side. The right side called _____________ and the left side called _____________

Answer 6

right, left, move, shrink, HYPERTONIC, HYPOTONIC

Question 7

3 Types of solute concentration

Answer 7

Hypertonic, Isotonic, Hypotonic

Question 8

Describe each types of solute concentration

Answer 8

1. Hypertonic
   - HIGHER SOLUTE concentration,
   - CELL SHRINKING
   - Ex: salt water
2. Isotonic
   - EQUAL SOLUTE concentration
   - STABLE
   - Ex: Ringer’s solution
3. Hypotonic
   - LOW SOLUTE concentration
   - CELL SWELLING
   - Ex: Distilled water

Question 9

Water potential = measurement of __________ ____________ in water

Answer 9

potential energy

Question 10

Formula for water potential

Answer 10

Water potential = Pressure potential + Solute potential