Question

question 3
1 pts
the transport of cholesterol is an example of (pick all correct answers)
an amphipathic molecule crossing the plasma membrane
passive transport
endocytosis
question 4
1 pts
in one cycle of the na/k pump:
3 na+ are pumped out
2 na+ are pumped in
3 na+ are pumped in
2 na+ are pumped out

Explanation:

• Cholesterol is amphipathic and crosses the plasma membrane. It can be transported via passive - transport mechanisms and also through endocytosis.
• In the Na/K - pump cycle, for every cycle, 3 Na+ ions are pumped out of the cell and 2 K+ ions are pumped in.

Answer:

Question 3: an amphipathic molecule crossing the plasma membrane, passive transport, endocytosis
Question 4: 3 Na+ are pumped out