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Virus and Bacteria
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| Question | Answer |
|---|---|
| Viruses are not considered living because | They are not made of cells, can't reproduce by themselves, don't grow, and don't metabolize. |
| Viruses are made of | DNA or RNA and a protein coat |
| Viruses act like hijackers because | They invade other cells and force them to make copies of the virus |
| Viruses can be treated with antibiotics | False |
| Viruses can reproduce without a host cell | False |
| During the lytic cycle, the virus kills the host | True |
| The tobacco maosaic virus can infect humans | False |
| Chicken pox, HIV, polio, and the common cold are caused by bacteria | False, They are cause by viruses |
| Influenza(flu), ebola, and rabies are caused by viruses | True |
| What characteristic do viruses have in commom with living cells? | They are made of DNA and RNA |
| Viruses can cause cancer | True |
| Viruses that evolve in geographically isolated areas are called | emerging viruses |
| Bacteria and viruses are pathogens | true |
| Bacteria come in which shapes? | cocci(round), bacillus(rod), and spirillum(spiral) |
| Bacteriophages infect bacteria | True |
| Viruses can be spread by handshaking, contaminated food, animal bites, and body fluids | True |
| Viruses cannot be spread by coughing and sneezing | False |
| Viruses can be dormant inside a person's body for a long time before becoming active | True |
| Washing your clothes and wearing shoes in the house will prevent bacterial infection | false |
| Washing hands frequently, using gloves when handling meat, and washing vegetables and fruits before eating will prevent bacterial infections. | True |
| The idea that life can arise from non-living things is called | spontaneous generation |
| The scientist who determined that maggots came from flies, not meat, was | Francesco Redi |
| During World War II, penicillin was widely used to treat soldiers. Soon after, some bacteria previously treated with penicillin could no longer be killed by the medication. This is known as | antibiotic resistance |
| Evolution in species is normally slow. However, bacteria have evolved and become resistant to many antibiotics rapidly. This is because bacteria can multiply fast. | True |
| The germ theory says that diseases are caused by microorganisms, not non-living things. | True |
| Bacteria reproduce by binary fission. | True |
| Bacteria can obtain their energy in several ways. Some photosynthesize, some break down chemicals for food, and others depend on decomposition of materials | True |
| A person should always take antibiotics when feeling sick and use as many antibacterial products as possible. | False |
| Bacteria are always harmful. | False |