Homeostasis Cell Transport. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16.

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Presentation transcript:

Homeostasis Cell Transport

What are the differences between diffusion & facilitated diffusion? need help

Explain when plasmolysis occurs.

During surgery, exposed tissues are moistened with sterile Ringer's solution to prevent shrinkage or lysis of the cells. Ringer's solution must be ___________ relative to cells in the tissue. Explain your answer.

Explain what each of the following substances requires in order to cross a membrane. water glucose sodium ion an amino acid

Explain the osmotic situations that the figure (at right) demonstrates? (Plasmolysis - turgor pressure – lysis) Is the extra-cellular fluid isotonic, hypertonic or hypotonic compared to the cell?

If a cell has a solute concentration of 0.07%,what osmotic situation of each of the following solutions would be? % solute 2.0.1% solute 3.1% solute 4.10% solute

What are the differences between facilitated diffusion and protein pumps?