HELP WITH 2 TOPIC QUES DUE IN 24 HOURS

Membrane Transport

You may elect to complete this worksheet as completely as you can and bring it to class with you when we discuss this topic so that we can work together to finish it.

C

B

A

1) Draw in phospholipids in the cell membrane. Identify (label) the membrane parts.

2) Molecule A moves across bilayer. What type of solute can pass through the bilayer like that?

3) What is this process?

4) What direction will the molecules go? (indicate with an arrow)

5) Does this process require energy?

6) Molecules B & C move through proteins. What type of molecule?

7) What is this process?

8) Molecule B moves from high to low concentration– what is this specific process?

9) Does this process require energy?

10) Molecule C moves from low to high concentration – what specific process is this?

11) Does this process require energy?

12) Which solution – top or bottom – is hypotonic? ______ hypertonic? _____

13) In which direction will water move?

14) What is this process called?

15) Is this process active or passive?