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Bacteria ect. Notes
Flashcards about archea, bacteria, and viruses.
| Question | Answer |
|---|---|
| capsule | an outer layer that protects the bacteria and helps it stick to things |
| flagella | a whip-like tail or set of tails that helps the bacteria move |
| prokaryotic | an organism that has no nucleus- the DNA floats around inside the cell |
| cocci | -a round-shaped bacteria -single= coccus |
| bacilli | -rod-shaped bacteria -single= bacillus |
| spirilla | -sprial-shaped bacteria -single= spirillum |
| diplo | pair |
| tetra | group of four |
| strepto | chain |
| staphlyo | clump |
| filaments | long chains of cyanobacteria |
| colonies | large clumps of cyanobacteria |
| saprophytes | organisms that use dead or decaying material as food and energy source- decomposers |
| nodules | small bumps or growths that contain nitrogen-fixing bacteria and are found on the roots of some plants ex. peanuts |
| pathogens | any organism that produces a disease |
| toxins | poisons that pathogens produce which cause conditions such as food poisoning |
| virus | a piece of hereditary material covered by a protein coat that infects and reproduces only inside a living cell |
| host cell | a living cell that the virus takes over |
| latent | -when a virus is inactive -when the virus is present but not actively reproducing |
| vaccine | a weakened form of the virus which helps you produce antibodies to fight the virus without making you sick |
| binary fission | -the process of one bacteria cell splitting into two -makes a copy of its DNA -takes about twenty minutes |
| aerobic organisms | organisms that need oxygen to survive |
| anaerobic organisms | organisms that can survive without oxygen |
| What does a T-4 virus look like? | -protien coat -has DNA inside the protein coat |
| What makes a virus living or non-living? | Living -reproduce Non-Living -don't grow -don't eat (get energy) -doesn't respond to its environment or adjust to their surroundings |
| Reproduction Steps for a virus | 1. The virus attaches to a healthy cell 2. The DNA of the virus is put into the cell 3. The DNA of the virus takes control of the cell's functions 4. The virus directs cell to make new DNA and protein coats 5. Cell bursts open and viruses attack new c |
Created by:
dancer721
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