Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
MI #2
| Question | Answer |
|---|---|
| What is the flagella? | The tail of the bacteria that move the bacteria through fluids. |
| What are the ribosomes? | They create proteins for the bacteria. |
| What are the pili? | They help bacteria attach to surfaces and move around. |
| What is the nucleoid? | The place in the bacteria that houses, organizes, and controls the cell's genetic material. |
| What is the plasma membrane? | It forms a protective barrier around the cell and regulates what goes in and out of it. |
| What is the cell wall? | Provides structural support and shape to the cell and helps it to not burst. |
| What is the capsule? | It protects the bacteria from the host immune system and helps it form drying out. |
| What is the plasmid? | Pieces of DNA that replicate on their own and carry extra genes for the bacteria. |
| What is the cytoplasm? | The gel like fluid inside of the membrane. |
| Why do bacteria swap DNA when they can reproduce asexually? | They can gain advantageous genes that allow them to resist an antibiotic. |
| What is transformation? | When a cell dies and breaks away, another cell can scavenge the left over DNA, called naked DNA, and use it for themselves. |
| What is transduction? | When a virus infects its DNA into a bacterial cell and new viruses are made inside the bacteria with the cell's DNA. When the cell dies the virus, which has resistant DNA in it, goes to another bacteria to infect it and passes along the gene. |
| What is conjugation? | When the cells are close together, they pass gene resistant DNA created by the plasmid through their sex pilis, and they both receive resistant DNA. |
| Summarize the Superbug lab. | There were two different strains of E. Coli, one had strep resistance on the chromosome, and one has amp resistance on the plasmid. They were mated so they created a third strand with resistance to both antibiotics. Done through conjugation. |
| How does penicillin work and does it work better on gram positive or gram negative bacteria? | It affects peptidoglycan formation, it works better on gram positive because the peptidoglycan is the outmost later of the cell. |
| How do tetracyclines work? | They affect the cell's ability to make proteins by biding to their ribosomes. |
| How do fluroquinolones work? | They interfere with the bacteria's ability to copy and repair its own DNA, which ends up killing them. |
| How do sulfa antibiotics work? | They stop the growth of bacteria, but do not kill them. They interfere with the production of folic acid. |
| How do B-lactams work? | They kill bacteria by stopping cell wall production. |
| A substance produced by or derived from a microorganism and able in dilute solution to inhibit or kill another microogranism. | Antibiotic |
| Resistance to one or more antibiotics, usually due to additional genetic information. | Antibiotic resistance |
| The one-way transfer of DNA between bacteria in cellular contact. | Conjugation |
| The DNA containing area of a bacterial cell. | Nucleoid. |
| A small ring of DNA that carries accessory genes separate from those of the bacterial chromosome. | Plasmid |
| The transfer of genetic material from one organism (such as a bacterium) to another by a genetic vector. | Transduction |
| The genetic modification of a bacterium by incorporation of free DNA from another ruptured bacterial cell. | Transformation |
Created by:
113689