Lab Midterm—2

Question 1

Molarity is what?

Answer 1

moles / 1L solution

Question 2

Osmolarity is what?

Answer 2

moles • #molecules / 1L solution

Question 3

Osmolality is what?

Answer 3

osmoles / 1Kg water

1Kg water = 1L water

Question 4

impermeant solutes are what?

Answer 4

solutes that do NOT cross the plasma membrane

Question 5

Hypotonic solution is what?

Answer 5

lower concentration of impermeant solutes than the ICF

-will cause water to move from the ECF to the ICF (into the cell)

Question 6

Hypertonic solution is what?

Answer 6

solutions have a higher concentration of impermeant solutes than the ICF
-will cause water to move from the ICF to the ECF (out of the cell)

Question 7

Permeant solutes are what?

Answer 7

solutes that DO cross the plasma membrane

Question 8

Hemolyze is what?

Answer 8

RBCs explode

-in a hypotonic solution

Question 9

Crenate is what?

Answer 9

RBCs shrink

-in a hypertonic solution