Question

what happens to a plant cell placed in a hypotonic solution?
it swells but the cell wall keeps it from bursting
the cell membrane pulls away from the cell wall
it swells and bursts
it shrinks due to water loss
question 12
1 pts
the movement of any substance from a region of higher concentration to a region of lower concentration is generally referred to as:
exocytosis
active transport
diffusion
pinocytosis

Explanation:

• For the first question: In a hypotonic solution, water enters the plant cell. The cell wall (a rigid structure) prevents the cell from bursting as it swells. When the cell membrane pulls away from the cell wall (plasmolysis), it occurs in a hypertonic solution. Animal cells (without a cell wall) swell and burst in hypotonic solutions, and shrinking due to water loss is in a hypertonic solution.
• For the second question: Exocytosis is the process of vesicles fusing with the plasma membrane to release contents outside the cell. Active transport moves substances against the concentration gradient (from low to high) using energy. Pinocytosis is a type of endocytosis (cell - drinking). Diffusion is the movement of any substance from a region of higher concentration to a region of lower concentration.

Answer:

• First question: it swells but the cell wall keeps it from bursting
• Second question: diffusion