Isosmosis& isotonic

Question 1

Isosmosis

Which is the force prevent what movement?

Answer 1

The constancy of the osmotic pressure of ECF

Osmotic movement

Question 2

Osmotic pressure depends on?

Answer 2

Number of solute particles per unit volume

osmolarity and osmotic concentration

Question 3

What is molarity and osmolarity and the differences?

Answer 3

Molarity: number of mole of solute particles

Osmolarity: number of osmoles of solute particles

Example:

1mole glucose = 1 osmole ( no dissociation)

1mole NaCl = 2 osmole ( dissociation into: Na, Cl)

When a compound cannot be dissociate, then osmolarity and molarity of that compound will be similar, vice versa

Question 4

What is for an isosmotic solution to be isotonic?

Answer 4

The membrane must be equally “impermeable” to all solute

Question 5

Does all isotonic are isosmotic?

Answer 5

Yes, but not all isosmotic are isotonic

Question 6

Physiological saline is isotonic or isosmotic?

Answer 6

Isotonic

Question 7

What is the water movement in isotonic solution?

Answer 7

There’s no movement

Question 8

Hypertonic RBC?

And % of NaCl

Answer 8

RBC cell shrink

3% NaCl

Question 9

Isotonic at RBC cell and %?

Answer 9

Shape of RBC does not change
0.9% of NaCl
Isosmotic = isotonic

Question 10

Hypotonic of RBC cell and %

Answer 10

RBC disrupts (hemolysis) 
0.3 NaCl