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Ch 25 Metabolism

Ch 25 Metabolism. 1. Explain why ATP is a useful form of energy in cells. 2. Hydrolysis of phosphoanyhdride bonds has a large negative Δ G. What 3 factors contribute to the higher stability of the hydrolysis products?

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Ch 25 Metabolism

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  1. Ch 25 Metabolism 1. Explain why ATP is a useful form of energy in cells. 2. Hydrolysis of phosphoanyhdride bonds has a large negative ΔG. What 3 factors contribute to the higher stability of the hydrolysis products? 3. Show two mechanisms for phosphoryl transfer reactions with ATP. Explain why, in certain cases, one might be preferred over the other.

  2. Ch 25 Metabolism 4. What compounds are formed when: • Carbohydrates undergo the first stage of catabolism? • Monosaccharides undergo the second stage of catabolism? • Acetyl-CoA enters the citric acid cycle?

  3. Ch 25 Metabolism 5. Fill in the missing reagents and intermediates in glycolysis:

  4. Ch 25 Metabolism 6. Define or give structure of: • monoterpene • sesquiterpene • isopentenyl pyrophosphate • geranyl pyrophosphate.

  5. Ch 25 Metabolism 7. Mark off the isoprene units in beta carotene:

  6. Ch 25 Metabolism 8. Farnesyl pyrophosphate forms the sesquiterpene shown below. Propose a mechanism for this reaction.

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