Cite your references at the end of each essay.
1, Describe four differences between prokaryotic cells and eukaryotic cells.

2. The cell membrane is crucial to the viability of all cell types.
a) Describe the structure and function of cell membranes.

b) Compare and contrast exocytosis and endocytosis.

3. Cell viability is dependent upon its ability to maintain water balance. Hypothetically, what happens when a person is stranded on a boat without fresh water, and drinks water from the ocean? Include the terms osmosis, water, salt, and hypertonic in your response.

4. Thousands of biochemical reactions take place in each of our cells. These reactions are carried out by enzymes.

a) Explain how enzymes work at the molecular level. You must include the terms reaction(s), substrate, active site, speed up, lower, and specific.

b) Thousands of biochemical reactions are constantly occurring in each of our cells.   
In this module, we reviewed the basic concepts of energy. These laws are the same

5. whether we are considering stars or bacteria.
a) Explain the physical principle known as conservation of energy.

b) What is the connection between ATP and our ability to walk, talk, and think? You must use the terms energy, ADP, currency, food, cellular, and process in your response.