Chapter 6 Questions

Enzymes are specific. This means that they

have a particular substrate.

The function of an enzyme is to

increase the rate of a metabolic reaction.

Which of the following can act a an enzyme cofactor?

iron vitamines NAD+

In which of the following ways is the enzyme inhibitor warfarin used?

rat poison anticoagulant medicine

In feedback inhibition of a metabolic pathway, where does the inhibitor bind?

to the enzyme of the first reaction

Which of the following statements is not true concerning enzymatic activity?

As the temperature increases, most enzymatic reactions will still proceed at the same rate.

Which of the following statements most accurately describes the first law of thermodynamics?

Energy can be neither created nor destroyed but it can be changed from one form to another.

Which of the following statements is true about enzymes?

They catalyze only one specific type of reaction.

If A -> B -> C -> D -> E represents a metabolic pathway, then letter E would be

a product.

The location in which the enzyme and substrate complexes is called the

active site.

ATP contains

an adenine base, a ribose sugar, and three phosphate groups.