Which of the following statements is incorrect:?

Question

a.cell moves particles from a region of lesser concentration to a region of greater concentration by diffusion

b.if a blood cell is placed in a strong salt water solution, water will leave the cell by osmosis

c.water moves into an animal cell placed in a hypotonic solution causing it to burst

d.water moves into and out of cell at an equal rate when placed in a isotonic solution

Answer 1

a is incorrect

Answer 2

a.cell moves particles from a region of lesser concentration to a region of greater concentration by diffusion

Answer 3

Not sure about 'c' and 'd'

But 'a' and 'b' are correct.

Answer 4

"a" is incorrect.

In diffusion particles move from an area of GREATER concentration to an area of LOWER concentration.

Answer 5

a.  it's the opposite.

Answer 6

B is the correct answer, if the solution is either Isotonic (equal concentration of solutes) or  Hypertonic (greater concentration of solutes). In the case of the Hypertonic solution the blood cell can shrivel and break.

Answer 7

A

Answer 8

a) is wrong  - diffusion is a net movement from a region of high concentration to a region of low concentration.