Quiz 5

Question 1

A__ is a regular increase or decrease in the intensity or density of chemical substance. Cells often maintain these gradients with ions of H+ across their membranes.

Answer 1

Concentration gradient

Question 2

Which is not a place where diffusion can occur?

Answer 2

Particles

• it can happen with gases, liquids, and solids

Question 3

_ is the net movement of molecules down their concentration gradient.

Answer 3

Diffusion

Question 4

A __ solution is one with a greater salute concentration than another.

Answer 4

Hypertonic

Question 5

___ is a specialized case of diffusion that involves the passive transport of water.

Answer 5

Diffusion

Question 6

Iodine combo with starch creates what color?

Answer 6

Purplish

Question 7

There are several types of molecules in a solution. The motion of each type of molecule is ___ and Independent of other molecules in the solution.

Answer 7

Random

Question 8

Like the dialysis bag, cell membranes are

Answer 8

Selectively permeable

Question 9

A __ solution is one with a lesser solute concentration than another.

Answer 9

Hypotonic

Question 10

___ solutions are of equal solute concentration.

Answer 10

Isotonic