Questions on ATP and cellular respiration and photosynthesis??

Posted on 2016-04-07 18:17:00 in Biology by JENIFER

1) Cyanide is a deadly poison that reacts with hemoglobin in our blood and prevents it from binding oxygen. Cyanide also binds to a molecule in the electron transport chain and blocks the flow of electrons down the chain. Explain why both these mechanisms will stop ATP synthesis. What role does oxygen play in cellular respiration? 

2) One of the most common misconceptions about cellular respiration is that we inhale oxygen and that this oxygen is converted to carbon dioxide, which we exhale. Explain what happens to the oxygen we inhale during cellular respiration. Then explain where the carbon dioxide we exhale comes from in cellular respiration. 

3) Plants and animals are mutually dependent on each other. Explain the energy-producing metabolic processes used by plants and animals, and name the products that result. Describe how animals benefit from the products of plant metabolism and how plants benefit from the products of animal metabolism. 

4) You perform an experiment using an aquatic plant called elodea to determine which color of light is most effective at driving photosynthesis. You take three plants, immersed under water, and place plant A under blue light, plant B under red light, and plant C under green light. You notice bubbles coming off the leaves. More bubbles are coming from plants A and B, and few are coming from plant C. Explain how these bubbles are being produced. How do these results determine which color of light is most effective at driving photosynthesis?

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