Why are viruses so specific to certain bacteria?
C. The attachment structures on the virus and the receptors on the host cells make for exquisite specificity of viruses for particular bacterial species. D. A wide variety of bacteria cause a large percentage of human infections, producing much sickness and death.
What is the difference between antibiotics and tests?
a. Antibiotics work only against specific types of bacteria. b. Antibiotics can kill bacteria without harming our cells. c. Tests can identify a particular bacterial strain.
Which drug is used to treat bacterial infections?
d. Antiviral drugs may be used to treat bacterial infections. d. Antiviral drugs may be used to treat bacterial infections. Organisms that lack chlorophyll and consist of reproductive spores and threadlike fibers are:
Can the same treatment be used on both planktonic and biofilm bacteria?
Can the same treatment be used on both planktonic and biofilm bacteria? No, planktonic bacteria are more difficult to treat since they can escape antibiotics or host defence 7. Which part of the infection pathogenesis is impaired in chronic infections?
How are bacterial infections treated?
Most bacterial infections can be effectively treated with antibiotics. They either kill bacteria or stop them multiplying. This helps the body's immune system to fight the bacteria. Your doctor's choice of antibiotic will depend on the bacteria that is causing the infection.
How does treatment for a bacterial infection differ from treatment for a virus?
Answer From Pritish K. Tosh, M.D. As you might think, bacterial infections are caused by bacteria, and viral infections are caused by viruses. Perhaps the most important distinction between bacteria and viruses is that antibiotic drugs usually kill bacteria, but they aren't effective against viruses.
Which of the following types of infections is typically treated with antibiotic?
Antibiotics are usually reserved for bacterial infections, because these types of drugs have no effect on illnesses caused by viruses.
What is the reason for bacterial infection?
Bacteria must enter your body for them to cause an infection. So you can get a bacterial infection through an opening in your skin, such as a cut, a bug bite, or a surgical wound. Bacteria can also enter your body through your airway and cause infections like bacterial pneumonia.
Why are antibiotics not effective against viruses?
Viruses and bacteria also have a different structure and a different way of surviving. Viruses are surrounded by a protective protein coating; they don't have cell walls that can be attacked by antibiotics like bacteria does. It is because of this that antibiotics don't work on viruses.
What is difference between virus and bacteria?
On a biological level, the main difference is that bacteria are free-living cells that can live inside or outside a body, while viruses are a non-living collection of molecules that need a host to survive.
Which of the following is not treated with antibiotics?
Antibiotics DO NOT work on viruses, such as those that cause: Colds and runny noses, even if the mucus is thick, yellow, or green. Most sore throats (except strep throat) Flu.
How do antibiotics work on bacteria?
Antibiotics work by blocking vital processes in bacteria, killing the bacteria or stopping them from multiplying. This helps the body's natural immune system to fight the bacterial infection. Different antibiotics work against different types of bacteria.
What do antibiotics treat?
Antibiotics are medicines that help stop infections caused by bacteria. They do this by killing the bacteria or by keeping them from copying themselves or reproducing. The word antibiotic means “against life.” Any drug that kills germs in your body is technically an antibiotic.
Which of the following is not a bacterial infection?
Therefore, our correct answer is option D – influenza.
How can bacterial infections be prevented?
You can prevent many infections and avoid spreading infections through simple tactics such as these:Avoid close contact with people who are sick.Cover coughs and sneezes.Avoid touching your face.Stay home if you're sick.Clean and disinfect surfaces that are touched often.Avoid contaminated food and water.
How can bacteria be prevented?
Keep your germs to yourself: Always wash your hands after sneezing, blowing your nose, or coughing, or after touching used tissues or handkerchiefs. Use warm water and soap to wash your hands. If you don't have soap and water, use alcohol-base hand gel or disposable wipes.
Why is a standardized inoculum of bacteria important?
This standard allows for a visual turbidity reading to achieve reproducibility in the number of bacteria inoculated on a plate. This is most important because:
What is MIC in medicine?
Minimal inhibitory concentration, or MIC, is: a. the average concentration of a drug that will prevent the growth of an organism. b. the lowest concentration of a drug that will prevent the growth of an organism. c. the highest concentration of a drug that will prevent the growth of an organism.
What is the difference between a Gram positive and a Gram negative cell?
The Gram-positive cells have the cell wall outside the cell membrane, while the Gram-negative cells have two membranes and the cell wall is in between the two membranes. The Gram-positive cells have some of their DNA in the cell wall , while the Gram-negative cells have their entire DNA inside the cell membrane. 3.
Do bacteria grow on antibiotics?
Yes, the growth form of a bacterium does not matter. No, biofilm bacteria are much more tolerant to antibiotics. No, planktonic bacteria are more difficult to treat since they can escape antibiotics or host defence. Yes, but only if they are not resistant to the drug. 7.