Maintaining a Balance Quiz
Biology
Topic One
Maintaining a Balance
1. What are enzymes? Identify their role in metabolism.
2. Enzymes are made up of ____________, _____________, ______________ and ________________. 3. Enzymes are large __________ that are coiled up to form an ____________ __________. 4. The molecule that the enzyme acts on is called the ______________. 5. Use a model to illustrate how enzymes work.
6. Explain how enzymes are specific.
7. Using the pH scale, identify how the pH can be used to describe the acidity of a substance.
8. Define intracellular.
9. Give an example of a chemical equation involving an enzyme:
10. With reference to a first hand investigation you have performed, describe the effect of: a) Temperature on the activity of an enzyme:
b) pH on the activity of enzymes:
c) Change in substrate concentrations on the activity of the enzyme:
11. Why is the maintenance of a constant internal environment important for metabolic efficiency?
12. Describe homeostasis.
13. The two stages of homeostasis are: 1) __________________________________________ 2) __________________________________________
14. Explain the first stage of homeostasis:
15. Complete:
|STIMULUS |RECEPTOR AND EXAMPLE |
|Light | |
| |Thermoreceptor,
Topic One
Maintaining a Balance
1. What are enzymes? Identify their role in metabolism.
2. Enzymes are made up of ____________, _____________, ______________ and ________________. 3. Enzymes are large __________ that are coiled up to form an ____________ __________. 4. The molecule that the enzyme acts on is called the ______________. 5. Use a model to illustrate how enzymes work.
6. Explain how enzymes are specific.
7. Using the pH scale, identify how the pH can be used to describe the acidity of a substance.
8. Define intracellular.
9. Give an example of a chemical equation involving an enzyme:
10. With reference to a first hand investigation you have performed, describe the effect of: a) Temperature on the activity of an enzyme:
b) pH on the activity of enzymes:
c) Change in substrate concentrations on the activity of the enzyme:
11. Why is the maintenance of a constant internal environment important for metabolic efficiency?
12. Describe homeostasis.
13. The two stages of homeostasis are: 1) __________________________________________ 2) __________________________________________
14. Explain the first stage of homeostasis:
15. Complete:
|STIMULUS |RECEPTOR AND EXAMPLE |
|Light | |
| |Thermoreceptor,