Osmosis and osmotic pressure

Question 1

What is a solvent?

Answer 1

Fluid that serves as a base for a solution- water

Question 2

What is a solute?

Answer 2

A substance that is dissolved to make a solution- electrolytes, proteins and nutrients

Question 3

What is diffusion?

Answer 3

A solute will move across a membrane down its concentration gradient till at equilibrium

Question 4

What is osmosis?

Answer 4

When the solute cannot penetrate the membrane, then then solvent will move across its concentration gradient to reach equilibrium

Question 5

What is it called when a cell shrinks?

Answer 5

crenate

Question 6

What is the IC, EC and permeability of sodium?

Answer 6

14, 140 and low permeability

Question 7

What is the IC, EC and permeability of potassium?

Answer 7

120, 4 and high permeability

Question 8

What is the IC, EC and permeability of chloride

Answer 8

10, 105 and moderate permeability

Question 9

What is the IC, EC and permeability of calcium?

Answer 9

.0001. 2.5 and very low permeability

Question 10

What is the IC, EC and permeability of bicarbonate?

Answer 10

10, 24 and moderate/high permeability

Question 11

What is the osmolarity of the inner and extracellualr solution?

Answer 11

290 inside and out. This means that there is no concentration gradient between the two despite varying solute concentrations

Question 12

What is the equation for measuring osmolarity?

Answer 12

osmolarity= g x [c]

where g is the number of dissociated molecules from the solute and [c] is the molar concentration of the solute

Question 13

What happens if the reflection coefficent is 0? what if its one?

Answer 13

If its zero then diffusion will occur because the solute is permeable
if it is one then osmosis will occur because the solute is not permeable.

Question 14

What is the equation to gather osmolality from CMP?

Answer 14

(2x[Na]) +([glucose]/18)+([BUN]/2.8)= osmolality