5. Introduction to metabolism - Chapter 6 Energy and ATP 1. Compare and contrast

Question

5. Introduction to metabolism - Chapter 6 Energy and ATP 1. Compare and contrast anabolism and catabolism (6.1) 2. Define energy and identify forms of potential and kinetic energy in biological systems (6.2) 3. Explain how ATP is used as an energy currency (6.2) 4. Define exergonic and endergonic reactions in terms of free energy change (6.4) 5. Explain the concept of energetic coupling (6.4) 6. If given a reaction or a description of a reaction, be able to predict if the reaction is catabolic or anabolic, and whether it is exergonic or endergonic. Thermodynamics 1. Describe the first and second laws of thermodynamics (6.3) 2. Explain how biological systems operate within the bounds of the laws of thermodynamics (6.3) Enzymes Catalyze Metabolic Reactions 3. Describe the key features of enzymes and their importanee in biological systems (6.5) Describe two mechanisms by which enzymes lower activation energy (6.5) 5. Describe how allosteric regulators affect the activity of an enzyme (6.5) 6. Explain why a reaction requires activation energy (6.5) 7. Explain how enzyme structure determines enzyme specificity (6.5) Control of Metabolism 8. Explain the concept of feedback inhibition as it applies to a metabolic pathway (6.5)

Explanation / Answer

Ans:- 1. Cmpare and comparison of anabolism and catbolism.

typical coenzyme/cosubstrate

transformations

ATP>>ADP or AMP

NADPH>>NADP+

ADP>>>ATP

NAD+ >>NADH

Anabolism Catabolism purpose useful compounds formed Energy generation nature of process reductive synthetic oxidative degenerative energetics uses energy yields energy types of starting material relatively few, simple structures highly variable often complex types of final product higly variable often complex relative few simple structures

typical coenzyme/cosubstrate

transformations

ATP>>ADP or AMP

NADPH>>NADP+

ADP>>>ATP

NAD+ >>NADH

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