1. What are two major differences between active transport and passive transport? Give specific examples of each that occurs within a eukaryotic cell.
2. Where do you think people have more mitochondria: in skin cells or muscle cells? Explain why.
3. Explain why mega-doses of vitamins do not help the body.
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.