POB chapter 6

In this diagram, the cell on the left

A) has a less stable configuration B) is more organized. C) has a less stable configuration. D) has more potential energy.

Each enzyme has a particular substrate because enzymes

have active sites complementary in shape to their substrates.

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.

During an enzymatic reaction, what happens to the enzyme?

The enzyme and the substrate form a temporary complex.

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.

This image demonstrates the second law of thermodynamics in that

the animal loses some energy to heat when chemical energy is converted to mechanical energy.