Question

question 8 (mandatory) (0.5 points)
if a red blood cell was placed in a hypertonic solution, the cell will undergo ______.
a) hemolysis
b) no net change in size
c) phagocytosis
d) crenation

question 9 (mandatory) (0.5 points)
with endocytosis vesicular transport, ______ is when the cell \gulps\ a drop of extracellular fluid containing dissolved molecules as a nonspecific routine activity.
a) pinocytosis
b) exocytosis
c) endocytosis
d) phagocytosis

Explanation:

Question 8

In a hypertonic solution, the solute concentration outside the red blood cell is higher than inside. Water moves out of the cell (osmosis) to balance concentrations, causing the cell to shrink, which is crenation. Hemolysis (A) is in hypotonic, no net change (B) is isotonic, phagocytosis (C) is cell eating, not related to tonicity.

Question 9

Pinocytosis is the nonspecific endocytic process where cells take in extracellular fluid (and dissolved molecules) as a routine. Exocytosis (B) is releasing, endocytosis (C) is general, phagocytosis (D) is for large particles (like bacteria), not fluid.

Answer:

D) crenation