Question

question 2 (1 point)
a cell with a total of 0.3 osmol/l is placed into a solution with a total of 0.2 osmol/l.
it is assumed that the osmotic particles cannot pass through the cell membrane.
answer the following true or false questions.
1 all particles will diffuse down a concentration gradient, that is, move from a
high concentration into a lower concentration
2 diffusion down a gradient happens because particles are constantly moving
(kinetic theory)
3 when solvent particles move down a gradient through a membrane it is called
osmosis
a. true b. false

Explanation:

1. For the first statement: Osmotic particles can't pass the membrane, so not all particles (osmotic ones here) diffuse down the gradient. So it's false (B).
2. For the second statement: Diffusion is due to constant random motion of particles (Kinetic Theory), so this is true (A).
3. For the third statement: Osmosis is solvent (like water) moving down its concentration gradient through a semi - permeable membrane, so this is true (A).

Answer:

1. B. false
2. A. true
3. A. true