Lab: Diffusion Across a Semi-permeable Membrane

Question 1

Question 1

Revolt · Accepted Answer

concentration to: low; concentration along the concentration gradient.: low

Question 2

Which part of the cell is semipermeable, or controls what enters and leaves the cell? mitochondrioncytoplasmendoplasmic reticulum✔ cell membrane

Revolt · Accepted Answer

✔ cell membrane

Question 3

In the lab experiment, the semipermeable membrane you will use is dialysis tubing, shown above with a solution inside. Which part of a cell is the dialysis tubing most similar to? cell wallX nucleuscytoplasm✔ cell membrane

Revolt · Accepted Answer

✔ cell membrane

Question 4

Check all correct elements below that you included in your question.

Revolt · Accepted Answer

format: “What is the effect of X on Y?”; independent variable: molecule size; dependent variable: ability to diffuse across a semipermeable membrane

Question 5

Check all correct elements below that you included in your hypothesis.

Revolt · Accepted Answer

correct conclusion (“then”): Molecules will diffuse through the membrane; correct reason (“because”): Molecules can pass through the membrane’s tiny openings.

Lab: Diffusion Across a Semi-permeable Membrane Answers

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