0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
Why some bacteria are resistant from penicillin?
Because its bigger and bigger is better ;)
Can Staphylococcus grow in penicillin G?
It depends. Some bacteria, like Staphylococcus aureus, have become resistant to penicillin G. Not all species of Staphylococcus are resistant. Even some strains of Staphylococcus aureus are still susceptible to penicillin G.
Is penicillin a bacteria?
Yes, penicillin prevents the formation of new bacterial cell wall. If a bacteria reproduces, new cell wall cannot be produced and the cell lyses and dies. However penicillin has no effect on a quiescent (non-reproducing) bacteria. Therefore penicillin is also called a bacteriostatic agent (prevents growth of bacteria), which means penicillin does stop bacteria from reproducing.
Why does penicillin not work on all bacteria?
Penicillin comes from an antibiotic made by one microbe that acts only against certain others. Some microbes are just resistant toward the antibiotic and another will have to be used. At times not enough or a dose that is too weak will prevent the antibiotic from working. Some antibiotics will work only on Gram negative or Gram positive bacteria. Some are broad spectrum and will work on both.It just is that penicillin resistant bacteria are not affected by penicillin. These have mutated and evolved to resist penicillin. These are often called "super bugs".
Why cant anti-biotics be used on flu or hiv?
Penicillin is an antibiotic; it fights bacteria. Flu and HIV are viruses, and antibiotics will not help a viral infection. Penicillin is effective against some types of bacteria. It has no action against viral infections like influenza (the flu) and HIV.
What is the substitute drug for amoxcicillin?
If you are wondering what is the name of a drug that contains amoxicillin - one would be Augmentin. This is made of amoxicillin and clavulanate. Clavulanate is what is referred to as a 'beta lactamase inhibitor' and this allows amoxicillin to be effective against drug-resistant bacteria that produce beta lactamase. Words ending in -ase are generally enzymes that are going to break something down. The penicillin family of antibiotics are called 'beta lactams' due to their structure. Some bacteria have developed beta lactamase in order to break down these antibiotics, thereby becoming a drug-resistant bacteria.
What are the problems associated with doctors over prescribing penicillin?
Penicillin is a very effective antibiotic which causes the cell walls of bacteria to break down by adding it's beta-lactam ring (part of its chemical structure) to the molecules used to build the wall. This weakens the bacteria and they lyse. If too much penicillin is prescribed in a population, and especially if courses are not completed and some bacteria survive, then resistant forms emerge. These develop an enzyme called beta-lactamase which breaks down penicillin before it can have its effect. As such, they survive courses of penicillin and its related drugs, and a penicillin-resistant strain is formed which can only be treated with other drugs.
Which is stronger pennicilin or amoxycillin?
The active ingredient in Augmentin (co-amoxiclav) that fights infection IS penicillin, so "stronger" is difficult to quantify. The advantage of Augmentin over penicillin is that it contains potassium clavulanate, which causes a large range of effectiveness against bacteria, including some which are seen as amoxicllin resistant.
Why is it that some infections are no longer cured by penicillin?
Penicillin, an antibiotic, kills bacteria. It was the first antibiotic used, and has been around for a long time. As it has been used, the bacteria that it kills have become resistantto it. Part of this has been caused by not totally eradicating the bacteria in the body. The bacteria that survive demonstrate resistance, and continue to multiply -- only, the strain of bacteria that is left is now resistant to penicillin.All antibiotics are susceptible to this effect. That is why, when you are prescribed an antibiotic by a doctor, you will be instructed to take all the antibiotic medication, even if you feel you are well and think you no longer need it. The goal is to kill all the bacteria and prevent the creation of a resistant strain of it.
Why is penicillin not effective anymore?
Penicillin does still work, just not as well. This is because the few germs that can survive the antibiotic will then pass on that capabaility to their progeny; the basics of genetics in action. This means that later generations of the same bacteria need more to kill them or, even worse, are entirely immune to the effect of penicillin. Some strains of bacteria have evolved to the point that they are not only unaffected by penicillin itself, but all drugs similar to penicillin (beta-lactams). One such strain is MRSA (methicillin-resistant Staphylococcus aureus).
Whats a thick coated resistant structure made by some gram positive bacteria to protect against harsh environments?
endospore
What will penicillin do to oral bactreia?
Kills it.Another answer:It really depends on the bacteria. Some do not respond to penicillin.
