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Ch. 20 & 40: Test
| Question | Answer |
|---|---|
| Viruses are... | Not cellular, cannot reproduce on their own, and do not need energy. |
| Parasite. | |
| Nucleic acid and protein coat. | |
| A virus that infects bacteria. | |
| Bacterial DNA. | |
| Glycoproteins. | |
| Lytic cycle. | |
| A disease causing agent. | |
| Targets and harms living organisms. | |
| Sexual contact, sharing nonsterile needles, breast milk, or exchange of bodily fluids. | |
| Each respond differently to antibodies. | |
| Ribosomes. | |
| Piti. | |
| Antibodies intefere with metabolic processes that viruses do not perform. | |
| Binary fission. | |
| Bacilus, coccus, sprilillum. | |
| Nucleic acid. | |
| Line internal body surfaces that are in contact with the enviornment produce mucus to trap potential pathogents and transports them to the stomach for destruction. | |
| Skin, mucus membranes, inflammatory response, and temperature increase. | |
| Damaged or infected cells release histamine; swelling occurs while white blood cells attack pathogens. | |
| Local blood vessels dialate to raise blood flow and increase the number of white blood cells to the infected site. | |
| A plasmid is a... | Protein that causes nearby cells to produce an enzyme that prevents viruses from making proteins and RNA. |
| Macrophages are... | A white blood cell that ingests invading microbes and cellular debris, resulting from microbial attacks. |
| Cytotoxic T cells do what? | Attack and kill infected cells. |
| B cells are... | Label invaders for destruction. |
| Memory cells. | |
| What types of cells activate both cytotoxic T and B cells? | Helper T cells. |
| Koch's postulates are... | Provided a guide for identifying specific pathogens. |
| Allergies are... | An inappropiate immune system response against a non-pathogenic antigen. |