Download Passive Transport

Passive Transport
1. What is the purpose of the cell membrane?
2. Explain passive transport.
3. What is the simplest type of passive transport?
4. In which direction does diffusion occur?
5. What is a concentration gradient?
6. Molecules are constantly _____________________.
7. What is meant by equilibrium?
8. Do molecules stop moving when equilibrium is reached? Explain.
9. Name the 2 parts of a solution.
10. Define osmosis. Is it passive or active transport?
11. The direction water moves across a cell membrane depends on the
concentration of what on either side of the cell membrane?
12. If inside the cell contains 25% solute concentration and the
environment around the cell contains 40% solute, which is the hypotonic
condition? Which way will water move between the cell and the
environment?
13. What occurs if the solute concentration on each side of the cell
membrane is isotonic?
14. If the inside & outside of a cell are both isotonic, does water still move
across the cell membrane? Explain.
15. If the inside of the cell is hypotonic, the outside will be
_________________________.
16. Water tends to diffuse from ____________________ to
___________________ solutions.
17. What happens to plant cells placed in a hypertonic solution?
18. Define selectively permeable.
19. Describe the phospholipid make up of cell membranes.
20. Explain the fluid mosaic model of the cell membrane.
21. Name the 3 types of protein found in the cell membrane and tell the
function of each.
22.Name the 2 types of lipids found in the cell membrane and tell the function
of each.