• 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
1. Because they are embedded within the membrane, ion channels are examples of ________.
 
 
 
 

Question 1 of 7

2. The diffusion of substances within a solution tends to move those substances ________ their ________ gradient.
 
 
 
 

Question 2 of 7

3. Ion pumps and phagocytosis are both examples of ________.
 
 
 
 

Question 3 of 7

4. Choose the answer that best completes the following analogy: Diffusion is to ________ as endocytosis is to ________.
 
 
 
 

Question 4 of 7

5. Critical Thinking: What materials can easily diffuse through the lipid bilayer, and why?

Question 5 of 7

6. Critical Thinking: Why is receptor-mediated endocytosis said to be more selective than phagocytosis or pinocytosis?

Question 6 of 7

7. Critical Thinking: What do osmosis, diffusion, filtration, and the movement of ions away from like charge all have in common? In what way do they differ?

Question 7 of 7