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, high, low

B. water, low, high

C. solutions, low, high

D. solutes, high, low

E. solutes, low, high

Question #2

How was the presence of glucose detected?

B. change in the mass of the dialysis tube

C. iodine

D. change in the circumference of the dialysis tube

E. pH test strip

F. glucose test strips

Question #3

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

A. 90%

B. 27%

C. 73%

D. 80%

E. 10%

Question #4

What is the purpose of iodine in the lab?

A. To color the solution red

B. To indicate the presence of glucose

C. To indicate the presence of starch

D. To serve as a control

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. True

B. False

Question #7

Temperature does not affect the rate of diffusion.

A. False

B. True