Why Substances Move

Question 1

Solution

Answer 1

Mixture of 2+ components (salt water = NaCl and water)

Question 2

Osmolarity

Answer 2

Measure of solute concentration (not the same as concentration but easier to think of it that way), defined in osmoles per solute per litre of solution

Question 3

Solvent

Answer 3

Aka dissolving medium (usually water)

Question 4

Solute

Answer 4

Smallest amount of substance within a solution (ex: NaCl in water)

Question 5

Osmosis

Answer 5

Movement of water from one compartment to another

Question 6

What are the types if solutions?

Answer 6

Hypertonic, hypotonic, and isotonic

Question 7

Hypertonic

Answer 7

More concentrated / less water (more solute, less solvent)

Water is drawn into hypertonic solution, cell would shrink

Question 8

Hypotonic solution

Answer 8

More water (more solvent, less solute)

Water will be pulled out of hypotonic solution - cell would grow

Question 9

Isotonic

Answer 9

Equal concentration. No net loss or gain of water

Question 10

IV therapy. Why must we use correct solution at correct rate to infuse?

Answer 10

could cause cells to dehydrate or rupture

Question 11

IV therapy - Hypertonic solution

Answer 11

It would shrink because solution draws out water. Used rarely

Question 12

IV therapy - hypertonic

Answer 12

Water will enter cell and make it swell eventually bursting

Question 13

IV - therapy Isotonic

Answer 13

IV solutions have the same solute and water concentrations as cells. Cause no change to cell