What are the factors that affect enzymes?

The normal enzyme required for converting sugars into glucose is present in cells, but the conversion never takes place and no glucose is produced. What could have occurred to cause this defect in a metabolic pathway?

Would you describe metabolic pathways as inherently wasteful or inherently economical, and why?

How Do Catabolism and Anabolism Differ? What are the features that generally distinguish pathways of catabolism from pathways of anabolism?

Cells expend energy on what three categories of activities?

How Art the Enzymes of Metabolic Pathways Organized? Name the four principal modes of enzyme organization in metabolic pathways.

How is a condition such as diabetes a good example of the failure of a set point in humans?

________ are always changed by participating in a reaction. a. Enzymes c. Reactants b. Cofactors d. Coenzymes

Which of the following is not true about enzymes? a. They are consumed by the reactions they catalyze. b. They are usually made of amino acids. c. They lower the activation energy of chemical reactions. d. Each one is specific to the particular substrate(s) to which it binds.

PREDICT In the following reaction series, which enzyme(s) is/are most likely to have an allosteric site to which the end product E binds? (a) enzyme 1 (b) enzyme 2 (c) enzyme 3 (d) enzyme 4 (e) enzymes 3 and 4