Prince George Community College » Biology » Bio 1010 - General Biology » Fall 2022

Question #1

In the process of osmosis, ______________ moves from a region of ____________ to a region of _________ concentration.

A. water, low, high

B. solutes, low, high

C. water, high, low

D. solutes, high, low

E. solutions, low, high

Question #2

How was the presence of glucose detected?

A. pH test strip

B. glucose test strips

C. iodine

D. change in the mass of the dialysis tube

E. change in the circumference of the dialysis tube

Question #3

If you have a 27% glucose solution, what percentage of that solution is water?

A. 90%

B. 73%

C. 27%

D. 80%

E. 10%

Question #4

What is the purpose of iodine in the lab?

A. To serve as a control

B. To indicate the presence of glucose

C. To color the solution red

D. To indicate the presence of starch

E. To react with the dialysis tubing

Question #5

Starch diffused through the dialysis tubing in this week’s experiment.

A. False

B. True

Question #6

The glucose test strips turned blue in the presence of glucose.

A. False

B. True

Question #7

Temperature does not affect the rate of diffusion.

A. True

B. False