Without fully explaining how the penicillin antibitic works: yes, archaea are resistant to penicillin. This is because they don't have peptidoglycan in their cell wall. Penicillin works by lowering the newly formed peptidoglycan in multiplying bacteria. It also does other things. The reason it works (this is natural penicillin G) only on Gr+ is because the can't get through the GR- cell wall. (I say this because both + and - HAVE peptidoglycan in their cell wall)
It is usually called MRSA: Methicillin-Resistant Staphylococcus Aureus. Methycillin is a version of penicillin that was developed to attack penicillin-resistant bacteria. MRSA can sometimes be treated with other common antibiotics like tetracyclines, e.g. doxycycline.
Carry the same resistance to penicillin as the parent bacteria. This resistance is usually conferred through genetic mutations or acquisition of resistance genes, allowing the offspring bacteria to withstand the effects of penicillin.
Gram-negative bacteria are more resistant to penicillin due to the presence of an outer membrane that acts as a barrier, preventing the antibiotic from reaching its target (peptidoglycan layer). Additionally, gram-negative bacteria possess enzymes called beta-lactamases that can break down penicillin and render it ineffective. These mechanisms make it harder for penicillin to kill gram-negative bacteria compared to gram-positive bacteria.
Exposure to penicillin can lead to the survival of antibiotic-resistant bacteria in a population as non-resistant bacteria are killed off, leaving behind those that have developed resistance. Over time, this can increase the prevalence of antibiotic-resistant strains within the population. It highlights the importance of responsible antibiotic use to prevent the emergence and spread of resistance.
The domain that consists of prokaryotic cells are bacteria and archaea.
Methicillin
Punctuated equilibrium
Punctuated equilibrium
penicillinase
Because its bigger and bigger is better ;)
its smaLL
1. members of the original population of bacteria that were penicillin resistant survived and reproduced, creating a more resistant populationReasonsome members of the of the original staphylococcus population had a mutation that made them penicillin- resistant. they survived and reproduced and all their offspring were also resistant to penicillin, creating a more resistant population
It is usually called MRSA: Methicillin-Resistant Staphylococcus Aureus. Methycillin is a version of penicillin that was developed to attack penicillin-resistant bacteria. MRSA can sometimes be treated with other common antibiotics like tetracyclines, e.g. doxycycline.
It helps to kill bacteria. Therfore, it can treat many diseases. Although in modern time, bacteria are becoming resistant to antibiotics and penicillin is losing its effects.
No. TB is commonly resistant to numerous antibiotics. It's generally treated with a cocktail of antibiotics, none are Penicillin.
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.
Carry the same resistance to penicillin as the parent bacteria. This resistance is usually conferred through genetic mutations or acquisition of resistance genes, allowing the offspring bacteria to withstand the effects of penicillin.