Watch a Video:
Watch the video below and answer the following questions:
1. What are the two types of cellular transport?
2. Active transport moves which way on the concentration gradient? What does this mean?
3. What molecule is required by active transport?
4. What are the three types of active transport?
5. What are membrane pumps?
6. What does the sodium potassium pump do?
7. What is the difference between endocytosis and exocytosis?
8. Why is a vesicle able to merge with the cell membrane?