Question 1

Compare and contrast passive diffusion, facilitated diffusion and active transport. Be specific with answer, cite all references, and answer must be 200 words in length.

Question 2

 Identify the three major organs involved in excretion. For any one of these organs explain the mechanisms that facilitate excretion. Be specific with answer, cite all references, and answer must be 200 words in length.

Question 3

 Identify a chemical accident you may be familiar with and discuss the toxic substance involved and any actual or potential effects as a result of exposure You may research an accident if needed. An excellent source of material may be found at www.csb.gov.