Science Homework Help

Growth Concept Questions

1. Describe the typical cell cycle.

2. Describe the process of binary fission.

3. Describe some other forms of bacterial growth.

4. What is the significance of growing colonies on a plate vs growing bacteria in liquid culture?

5. What are the different phases of a bacterial growth curve, and why do each occur?

6. What is the effect of oxygen on growth, and why? What are the resulting classes of bacteria with respect to their oxygen requirements?

7. What is the effect of temperature on growth, and why? What are the resulting classes of bacteria with respect to temperature?

8. Describe two specialized forms of growth for a bacteria on a hard surface or under conditions of nutrient starvation?

9. What are some changes to the physical environment that can be made to prevent bacterial growth? What is an important difference between sterilizing tools in an autoclave vs pasteurizing foods?

10. What kinds of chemicals make good antibiotics; i.e. what should an antibiotic do? What do the terms bacteriocidal and bacteriostatic mean? Where do most antibiotics come from, and how do bacteria become resistant?