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Virus/Bacteria Test
Study Guide
| Question | Answer |
|---|---|
| Viruses are like parasites because | They harm the cells they enter |
| Why are a virus's proteins important? | they help the virus attach to the host |
| bacterial cells come in three shapes they are | round, rod, spiral |
| What so we find in the cytplasm of bacterial cells? | genetic material |
| This process results in genetically different bacteria | conjugation |
| Bateria called decomposers have an important role what is it? | They return basic chemicals to the environment |
| Bacteria that live in the human body does not do? | fixing nitrogen |
| With most viral infections the best way to treat is? | bed rest |
| Vaccine works how? | It activates the body's natural defenses. |
| The bacterial process of binary fission is what? | asexual reproduction |
| Viruses are considered to be nonliving why? | they do not show all the characteristics of life. |
| viruses get their engry from what? | it's host |
| A hidden virus | becomes part of the host cell's genetic meterial. |
| Bacterial cells always have what structures | ribosomes |
| What stimulates a person's body to produce chemicals that destroy viruses or bacteria? | vaccine |
| Viruses are nonliving because they live on what? | cells |
| The inner core of a virus contains what? | genetic material |
| What takes over a cell's functions when a virus invades a living cell? | genetic material |
| What is the outermost structure of most bacterial cells? | cell wall |
| What happens when bacterium transfers some of its genetic material to another bacterium? | conjugation |
| What contains the virus's instructions? | genetic material |
| What is on the virus's coat that allows the virus to attach to certain cells. | proteins |
| When a virus begins to multiply immediately ofter it enters a cell is called what? | active |
| What is the long whiplike structure that some bacteria uses to move? | flagellum |
| What is Genetic material called that is not contained in nuclei? | prokaryotes |
| What are bacteria called when they break down large chemicals in dead organisms into small chemicals? | decomposers |
| This stimulates the body to produce chemicals that destroy viruses or bacteria. | vaccine |
| One characteristic that viruses share with living organisms is? | the ability to multiply |
| What does bacteria need to carry out their life functions. | energy |
Created by:
rachelwh
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