Explain why mega-doses of vitamins do not help the body

1.What are two major differences between active transport and passive transport? Give specific examples of each that occurs within a eukaryotic cell. 

Your response should be at least 75 words in length. You are required to use at least your textbook as source material for your response. All sources used, including the textbook, must be referenced; paraphrased and quoted material must have accompanying citations.

2.Where do you think people have more mitochondria: in skin cells or muscle cells? Explain why. 

Your response should be at least 75 words in length. You are required to use at least your textbook as source material for your response. All sources used, including the textbook, must be referenced; paraphrased and quoted material must have accompanying citations.

3.Explain why mega-doses of vitamins do not help the body.

Your response should be at least 200 words in length. You are required to use at least one outside source for your response. All sources used, including the textbook, must be referenced; paraphrased and quoted material must have accompanying citations.

4.Describe the three stages of cellular respiration, where they occur in the cell, the substrates and reactants for each stage, and the number of ATP each stage produces. 

Your response should be at least 500 words in length. You are required to use at least your textbook as source material for your response. All sources used, including the textbook, must be referenced; paraphrased and quoted material must have accompanying citations.