Question 1 options: A). Molecules move from a concentration to a concentration i

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Question 1 options:

A). Molecules move from a

concentration to a

concentration in diffusion.

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B). (1 point)

The greater the difference in concentration of molecules on one side of the gradient to the other side, the faster the rate of diffusion.

Question 2 options:

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C). (2 points)

What characterisitics do molecules need to move across a cell membrane without assistance?

Question 3 options:

1)

2)

3)

4)

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D). (1 point)

Question 4 options:

Osmosis is the movement of

from high concentration to low concentration across a membrane.

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E) (1 point)

A cell is placed in a hypotonic solution, in relation to the cell, which way is the water going to move?

Question 5 options:

1)

2)

3)

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F). (1 point)

Question 6 options:

In experiment 1, diffusion through a liquid, the heavier the molecular weight, the

the rate of diffusion.

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G). (1 point)

An indicator tests for the presence of a particular substance. IKI indicator changes to what color when in the presence of starch?

Question 7 options:

1)

2)

3)

4)

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H). (1 point)

Glucose and starch were both placed inside the dialysis tube. Which one moved out of the tube into the beaker of water?

Question 8 options:

1)

2)

3)

4)

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I). (1 point)

Which type of control produces a color change to the indicator?

Question 9 options:

1)

2)

Explanation / Answer

A.of high concentration to an area of low concentration

B. True

C. small

D. the diffusion of water across a selectively permeable membrane from a region of high water concentration to a region of lower water concentration

E.out of the cell

F. slower the rate of diffusion

G. blue black

H. glucose

I. positive

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