Cellular Metabolism

Cellular Metabolism

After studying this chapter, readers should be able to

1. Define metabolism, catabolism, and anabolism.

2. Describe what takes place in an oxidation-reduction reaction.

3. Explain cellular respiration.

4. Compare and contrast glycogenesis, gluconeogenesis, and lipolysis.

5. Discuss hydrolysis of a water molecule.

6. Describe glycolysis in the cellular respiration.

7. Describe oxidation of glycerol and fatty acids.

8. Explain the oxidation of amino acids.

9. Discuss metabolic pathways.

10. Define oxidation and energy.

Overview

The chemical reactions involved in cellular metabolism release energy because of the breakdown of ­nutrients. Molecules are built to store energy. As cells divide, they use energy to copy their genetic material. They build proteins from amino acids. Enzymes are proteins required for cellular metabolism and to control metabolic reactions. Nutrients in body cells are used for biochemical reactions that collectively are described as metabolism, during which time sub-stances are built up and broken down continuously.