Cell Biology

Biology 160 Study Guide #5 1. Be able to write the basic reaction that describes cellular respiration 2. What are the three main stages of cellular respiration? Be able to say what goes in and what comes out of each of these stages. 3. What is chemiosmosis (be able to describe the process)? 4. What is the form of energy actually used by your body? 5. What happens if you don?t have oxygen? 6. What is fermentation? 7. Be able to describe how the three main forms of nutrition are used for energy or made by the reverse of these cycles. 8. What is the basic mechanism responsible for global warming? 9. What are the central themes in the theory of natural selection? 10. How has the fossil record been preserved?

Cells, Membranes and Cellular Reproduction A Tour of the Cell ? Cell Structure & Function ? Chapter 4 ? Compared to the images generated by the Hubble telescope or the planetary probes like Voyager, telescope images are limited. ? Same with looking at cells under a light microscope, view is limited. ?Which of the following cell parts are visible under a light microscope? ? Cell membrane - yes. ? Large macromolecules - no. ? Microtubules - no. ? Mitochondria - maybe just barely. ? Many bacteria - yes ? The microscopic size of most cells ensures a sufficient surface area across which nutrients and wastes can move to service the cell volume ? A small cell has a greater ratio of surface area to volume than a large cell of the same shape 30 ?m 10 ?m