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ATP and Energy Flow (2009)

posted Oct 29, 2013, 7:24 AM by Marschal Fazio

ATP and GTP are primary sources of energy for biochemical reactions.

  1. (a)  Describe the structure of the ATP or the GTP molecule.

  2. (b)  Explain how chemiosmosis produces ATP.

  3. (c)  Describe TWO specific cell processes that require ATP and explain how ATP is used in each process.

  4. (d)  An energy pyramid for a marine ecosystem is shown below. Label each trophic level of the pyramid and provide an example of a marine organism found at each level of this pyramid. Explain why the energy available at the top layer of the pyramid is a small percentage of the energy present at the bottom of the pyramid.