Wednesday, May 23, 2007

More Bio 120 Questions

Here's some more questions for you to answer !

1. A cell must maintain an imbalance of sodium ions on either side of the membrane for it to function. What process would it most likely use of the ones we discussed today in class?

2. How are polar and non polar covalent bonds different?

3. What is a hydrogen bond, and why are these bonds important to life?

4. Oxygen has 8 electrons, with 6 in the outermost energy leve. Will this atom react?

5. How are ions formed?

6. A solution with a pH of 5 is how many times more acidic than a solution with a pH of 7?

7. What determines if an atom with react with another?

8. A plant cell in a hypertonic solution will under go _____________

9. An animal cell in a hypotonic solution may undergo _____________

10. A Paramecium can survive in fresh water without bursting. Why?

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