Test 2 Possible Q's

1. By what mechanism does the cell extend filapodia and lamellipodia? Why don't membranes come apart when this happens?

2. Compare and contrast Actin, Microtubules, and Intermediate Tubules. Be complete - use all the information I told you in class.

3. What are some examples of nucleotide tri-phosphates? Where specifically to we find the ones we talked about in class? How are they used?

4. What is polarity when in biological macromolecules? Why is it dissimilar to electrical charge? What causes polarity or lack therof?

5. What are some of the "families" seen in cellular matix systems? What are some of the members? How are the families organized?

6. What makes IF's the "brick shithouses" of the cell biology world?

7. How can we verify the polarity of MT's in the cell?

8. How did scientists first test how myosin works in cells? What steps did they do to test this?

9.