Question

pre-lab video coaching activity: diffusion and osmosis
4 parts | -- of 1 point
place the term in the appropriate blanks in the sentences about diffusion and osmosis. make certain each sentence is complete before submitting your answer.
show instructions
passive

1. during osmosis, water moves

down its concentration gradient.
active
down

1. diffusion and osmosis are

lower processes.
up
higher

1. osmosis is the movement of a solvent from an area of

concentration to an area of
concentration across a selectively permeable membrane.

1. diffusion is the movement of solutes from an area of

concentration to an area of
concentration.

Explanation:

Question 2

Diffusion and osmosis do not require energy input, so they are passive processes. The term "passive" fits here as these processes occur along concentration gradients without energy.

Osmosis (movement of solvent, like water) moves from an area of higher solvent concentration (lower solute concentration) to lower solvent concentration (higher solute concentration) across a semipermeable membrane. So first blank: higher, second blank: lower.

Diffusion of solutes moves from an area of higher solute concentration to an area of lower solute concentration (down the concentration gradient). So first blank: higher, second blank: lower.

Answer:

passive

Question 3