Question

question 7
the difference between osmosis and diffusion is that
a. osmosis refers specifically to the movement of water, whereas diffusion is the movement of any molecule.
b. only diffusion refers to the movement of materials across a semipermeable membrane.
c. only in diffusion do molecules move from areas of high concentrations to areas of low concentration.
d. diffusion is passive transport, whereas osmosis is active transport.

question 8
in this picture, the solution in a is _, while the slution in c is _.
a. hypertonic; hypotonic
b. hypotonic; isotonic
c. hypertonic; isotonic
d. hypotonic; hypertonic

Explanation:

For Question 7: Osmosis is the diffusion of water across a semi - permeable membrane. Diffusion is the movement of any molecule from an area of high concentration to an area of low concentration and can occur with or without a semi - permeable membrane. Both are passive transport.
For Question 8: In A, water is moving into the cell, indicating a hypotonic solution (less solute outside). In C, water is moving out of the cell, indicating a hypertonic solution (more solute outside).

Answer:

Question 7: A. osmosis refers specifically to the movement of water, whereas diffusion is the movement of any molecule.
Question 8: D. hypotonic; hypertonic