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Ch. 6B Flashcards
Flashcards to review for Quiz Ch. 6B
| Question | Answer |
|---|---|
| Give examples of virus caused diseases. | flu, chicken pox, warts, AIDS, rabies, cold sores, mumps, measles, hepatitis, polio |
| Disease causing agent that does not reproduce on its own. The cell which it infects reproduces it. | virus |
| nucleic acid surrounded by a protein coat | virus |
| Which are smaller, bacteria or viruses? | viruses |
| injection of a harmless form of a virus to stimulate the body to form antibodies | vaccination |
| type of virus that remains inactive for a period of time before becoming active | latent |
| How are viruses reproduced? | Infected cells reproduce them |
| The two substances that make up a virus | nucleic acid and protein |
| The protein coat of a virus | capsid |
| How do newly made viruses spread to infect other cells? | They burst or destroy the cell that made them. |
| Why do many scientists not consider viruses as living organisms? | They have no cytosol, organelles or cell membrane and no ability to reproduce on their own. |
| Some scientists are investigating what possible means of replacing defective genes? | using viruses to insert correct DNA |
| Three means of fighting viral infections | Good hygiene, healthy living habits, vaccination |
| What are two examples of good hygiene that help prevent the spread of viruses? | Washing hands often and thoroughly, covering the mouth when sneezing or coughing |
| What are two examples of healthy living that help prevent getting sick from a virus? | Eating a balanced diet, exercising regularly |
| What does a virus use to control the cell it infects? | Its nucleic acid that it injects into the cell |
| What is kind of procedure would involve replacing mutations with the correct DNA carried by a virus? | Gene therapy |
| Why won't antibiotics work against a virus? | It is not alive |
| What does your body use to fight a virus? | antibodies |
| What viral disease against which we have been immunized would attack the brain and spinal cord and cause paralysis? | polio |
| What viral disease affects the immune system that fights against disease? | AIDS caused by HIV |
| What viral disease against which we have been immunized causes high fever and sometimes death in children younger than 5? | Measles |
| What viral disease that has been eradicated used to be disfiguring or even deadly? | smallpox |
| a viral infection that is most commonly transmitted to humans by the bite or saliva of an infected animal | rabies |
| What viral disease caused by a blood borne pathogen affects the liver? | hepatitis |
| What is the disease that we call the flu? | influenza |
| What does a virus do after it attaches to a cell? | Injects its DNA |
| What is used by a virus to produce more viruses? | The machinery (nucleus and ribosomes) of a cell |
| If a virus is not a latent virus it is considered to be ________. | active |
| After an infected cell makes many viruses what happens to the cell? | It burst releasing viruses to infect other cells |
| bacterial skin disease that can be curable if caught early | leprosy |
| Also called Pertussis caused by bacteria that leads to severe and uncontrollable coughing | especially serious for babies |
| bacterial disease also called lockjaw | involves severe spasms and tightness of muscles |
| bacterial disease that is contagious and spreads through coughing | affects the lining of the lungs |
| result of toxins produced by bacterial contamination | food poisoning |
Created by:
Mr.JFoster
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