Exam 8: Energy, Enzymes, and Metabolism

Figure 8.17 shows the behavior of an allosteric enzyme that has binding sites for a negative regulator. Describe the behavior of an enzyme with binding sites for a positive regulator instead of a negative regulator.

An enzyme could increase the rate of a reaction by

Heat, light, electricity, and motion are all examples of _______ energy.

When organisms move from one environment to another, they sometimes synthesize variations of existing enzymes, which are called

What is a transition state?

Which of the following statements about the reaction shown below is true?

ATP is necessary for the conversion of glucose to glucose 6-phosphate. Splitting ATP into ADP and P_i releases energy into what form used by the cell?

The statement "enzymes are highly specific" means that certain

In a reaction catalyzed by an enzyme,

Which of the following determines the rate of a reaction?

The hydrolysis of sucrose to glucose and fructose is exergonic. However, if sucrose is dissolved in water and the solution is kept overnight at room temperature, there is no detectable conversion to glucose and fructose. Why?

Phosphorylation of ADP to ATP is endergonic, whereas the hydrolysis of ATP to ADP is exergonic. The two reactions are therefore said to be

The synthesis of complex molecules is _______, whereas their degradation is _______. Synthesis occurs with _______ in entropy.