Question

question 8 (mandatory) (1 point) in the diagram below, which situation is when the red blood cell is exposed to hypertonic solution? what is happening to the red blood cells in that situation? options: c ; crenation, a ; crenation, a ; hemolysis, c ; hemolysis (with diagrams (a), (b), (c)) question 9 (mandatory) (1 point) which type(s) of vesicular transport is for nonspecific engulfment of fluid and materials from outside of the cell? options: pinocytosis, receptor - mediated endocytosis, exocytosis, phagocytosis and pinocytosis

Explanation:

Question 8

1. Recall osmosis: In a hypertonic solution, the solute concentration outside the cell is higher than inside.
2. For red blood cells, water moves out of the cell (osmosis) to the hypertonic environment.
3. This causes the red blood cell to shrink and develop a spiky appearance, which is called crenation. Looking at the diagrams, (c) shows the shrunken, spiky red blood cells, so the situation in (c) corresponds to exposure to a hypertonic solution, and the process is crenation.

Question 9

1. Recall vesicular transport types:

• Pinocytosis: Nonspecific engulfment of fluid and dissolved materials from outside the cell (cell "drinking").
• Phagocytosis: Nonspecific engulfment of large solid particles (cell "eating").
• Receptor - mediated endocytosis: Specific, uses receptors to bring in specific molecules.
• Exocytosis: Transport of materials out of the cell.

1. The question asks for nonspecific engulfment of fluid and materials, so pinocytosis matches this description.

Answer:

c ; crenation