Lab: Diffusion Across a Semi-permeable Membrane

Question 1

The independent variable in this experiment was , and the dependent variable

Revolt · Accepted Answer

molecule size; Selection 1: molecule size; Selection 2: ability to diffuse

Question 2

was .

Revolt · Accepted Answer

ability to diffuse

Question 3

The tubing contains . The beaker

Revolt · Accepted Answer

starch solution; Selection 1: starch solution; Selection 2: Lugol’s solution

Question 4

contains .

Revolt · Accepted Answer

starch solution; Lugol’s solution

Question 5

The tubing contains . The beaker

Revolt · Accepted Answer

starch solution; Selection 2: only Lugol’s solution

Question 6

contains .

Revolt · Accepted Answer

only Lugol’s solution

Question 7

Initially, glucose was found only the dialysis tubing. After 15 minutes, a sample was taken. That sample showed that glucose was found the dialysis tubing.

Revolt · Accepted Answer

inside; Selection 1: inside; Selection 2: outside

Question 8

the dialysis tubing.

Revolt · Accepted Answer

both inside and outside

Question 9

If a test had been done of the solution inside the dialysis tube, what do you think the results would have been?

Revolt · Accepted Answer

The glucose would be found because it would reach an equilibrium.

Question 10

Analysis: diffused though the semipermeable membrane.

Revolt · Accepted Answer

Only glucose (smaller molecules)

Lab: Diffusion Across a Semi-permeable Membrane Answers

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