1. What are the major limitations to resolution in a light microscope? and how does usingoil increase resolution?

2. Which do you think is more accurate detector of theequivalence point: a color indicator or a pH electrode andmeter?Why

3. Describe how the myelin sheath is formed in the PNS. How are the nodes of Ranvier formed? What is the relationshipbetween the myelin sheath and the neurilemma?