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Bacteria test
Science - bacteria
| Question | Answer |
|---|---|
| An organism that uses oxygen for respiration | aerobe |
| Long, thin, whiplike structure of some protists that helps them move through moist or wet surroundings | flagella |
| A process that produces two new cells with genetic material identical to each other and that of the original cell | fission |
| An organism that is adaptd to live without oxygen | anaerobe |
| Most bateria reproduce by ____ | fission |
| Antonie Van Leeuwenhock was given credit for what? | Discovering Bacteria |
| How do aerobic organisms and anaerobic organisms differ? | Aerobic organisms live with oxygen and anaerobic do not live with oxygen |
| Chemicals produced by some bacteria that are used to limit the growth of other bacteria | antibiotics |
| Any organism that use dead organisms as food and energy sources | saprophyte |
| Any organism that causes disease | pathogen |
| Some bacterial pathogens like those that cause botulism can produce thick-wall structures | endospores |
| Poisonous substance produced by some pathogens | toxins |
| Preparation made from killed bacteria or damaged particals from bacterial cell walls that can prevent some bacterial disease | vaccine |
| These organisms change nitrogen from the air into forms that plants and animals can use | nitrogen-fixing bacteria |
| Why are saprophytic bacteria helpful and necessary? | They help recycle nutrients |
| What are 3 uses of bacteria in the food production and in industry? | They are used in medicines, enzymes and methane gas |
| Why is it important to clean a cut that you get on your body? | Because bacteria can enter your body and cause disease, which causes toxins |
| Why is botulism associated with canned foods and not fresh foods? | Because canned foods have to go through a process to kill bacteria when going through the canning process |
| How do some bacteria enter the body to cause diseases? | They enter through a cut, you inhale them or they can enter in other ways |
| Why are nitrogen-fixing bacteria important? | Nitrogen-fixing bacteria are important because they change nitrogen from the air into forms that plants and animals can use |
| Medicines, enzymes and methane gas all have something in common, what is it? | They are all made from bacteria |
| What are the characteristics sommon to all bacteria? | Bacteria are one-celled organisms that occur alone or in chains or groups. They have no membraine bond nucleus. |
Created by:
Gay Herpin
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