Collagative Properties

Question 1

What are collagative properties?

Answer 1

Physical properties of solutions that are dependant on the number of dissolved particles

Question 2

Vapour pressure

Answer 2

Add solute to solution
= less solution on surface
=less molecules escape
=decrease vapour pressure

Question 3

Boiling Point

Answer 3

lower vapour pressure = higher boiling point

add salt to water

Question 4

IV

Answer 4

Must be Isotonic
hypo = BAD, causes convulsion, oedema, renal failure
Hyper = cells shink, can cuase dehydration, also used for therapeutic effect
(irritate blood vessels, thus slow circulation

Question 5

Intrathecal

Answer 5

Strictly isotonic

Question 6

IM

Answer 6

Slightly hypertonic

-this can draw water to muscles and allows better absorption

Question 7

eye/nose

Answer 7

Isotonic

Question 8

What is the difference between isomoticity and isotonic?

Answer 8

Iso-osmoiticty = there is an equal concentration of dissolved particles, But because biological membranes are NOT perfect molecules such as propylene glycol WILL pass through thus there IS net movement and NOT isotonic 
Isotonic = there is NO net movement of particles