1. What is activation energy?
| A. The energy used by the active site to split asubstrate. |
| B. The energy released when a substrate binds to an activesite. |
| C. The energy required to start a metabolic reaction. |
| D. The energy required to raise the temperature of 1 gram ofwater by 1 degree Celsius. |
2. Which statement defines your body's metabolic rate?
| A. The speed at which chemical reactions occur when you areresting but awake |
| B. The number of Calories needed to keep your weightstable |
| C. All of the chemical reactions in your body |
| D. A measure of your body’s energy use    |
3. Which statement about enzymes is true?
| A. One enzyme can catalyze many different types of reactionsfor a variety of substrates. |
| B. The shape of an enzyme determines its specificity. |
| C. Enzymes eliminate the activation energy barrier. |
| D. An enzyme molecule is permanently changed by the substratemolecule. |
4. Which reaction occurs during glycolysis?
| A. Glucose is converted into carbon dioxide. |
| B. Glucose is converted into water. |
| C. Glucose is converted into ATP. |
| D. Glucose is converted into pyruvic acid. |
