Question

question 4
0.5 pts
plasmolysis is the process of water flowing ______.
○ in and out of cells at an equal rate in an isotonic solution
○ into cells in a hypotonic solution
○ out of cells in a hypotonic solution
○ out of cells in a hypertonic solution
question 5
0.5 pts
the ____ test is used to detect the presence of starch. in the presence of starch, the solution turns ____.
○ iodine; blue/black
○ iodine; yellow - amber
○ test strips; green
○ test strips; orange

Explanation:

For Question 4: Plasmolysis occurs when a cell is in a hypertonic solution, where the solute concentration outside the cell is higher than inside. Water moves out of the cell to balance the concentration, causing the cell membrane to shrink away from the cell wall.
For Question 5: The iodine test is a standard biochemical test for starch. Iodine solution forms a characteristic blue/black complex with the helical structure of starch molecules, which is the positive indicator for starch presence.

Answer:

Question 4: out of cells in a hypertonic solution
Question 5: Iodine; blue/black