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The cell wall of bacteria is made peptidoglycan which consists of polysaccharide and peptide. Peptide crosslinks help hold the polysaccharide chains together. The bacterial enzyme D-alanyltranspeptidase is known to affect these crosslinks ans it binds to the D-Ala-D-Ala end of peptisdes.
The beta-lactam region of the antibiotics are similar to the D-Ala-D-Ala ends of peptisdes. They can hence inhibit D-analytranspeptidase by creating a enzyme intermediate which slowly hydrolyses the covalent acyl bond.
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Explain how the process of natural selection results in populations of bacteria that are not harmed by antibiotics?
The process of natural selection results in populations of bacteria that are not harmed by antibiotics because bacteria that are born with mutations that make them immune to antibiotics will be the ones to survive and reproduce.
Are antibiotics universal and explain?
Colloidal silver is a universal antibiotic. It kills over 650 different bacteria.
How could you explain the increase of infection in hospitals by antibiotic-resistance bacterial?
The increase in infections in hospitals due to antibiotic-resistant bacteria is primarily caused by overuse and misuse of antibiotics. This leads to the development of resistant strains that are difficult to treat with conventional antibiotics. In hospitals, where patients with weakened immune systems are concentrated, these resistant bacteria can spread easily, leading to outbreaks of infections that are challenging to control.
Explain how the excessive or inappropriate use of antibiotics poses a health hazards for human population?
Antibiotics are substances which kill or inhibit bacteria. The problem lies in the fact that bacteria tend to have fairly high mutation rates. These mutation rates yield some bacteria which are more resistant to the antibiotics than other bacteria. Since you have used an antibiotic to destroy all other bacteria in a person, the resistant bacteria is free to spread as much as it can, since the antibiotic used won't kill it. If this is the case, then the person would have to get a different, more appropriate antibiotic to kill the bacteria. In some cases, this can be done multiple times, and you end up with a super-bacteria called multi-antibiotic resistant bacteria. As use of antibiotics spread, so do strains of these MAR bacteria, which are much more deadly than their relatives So what can be done? First, use antibiotics less. Studies show that they are over-prescribed. Second, ensure that the proper antibiotic is prescribed. In some cases, an antibiotic which is incorrect for the job to be done is one of the culprits.
Why should antibiotics should not be overused explain in brief.?
The more antibiotics are used, the more likely it is for antibiotic resistant organisms to appear. explain briefly but why Bhavishya
Explain how bacteria could be useful instead of hazardous?
explain how bacteria could be useful instead of hazardous.
What is evolution and can you provide an example to explain the term?
Evolution is the process by which living organisms change and adapt over time through natural selection. An example of evolution is the development of antibiotic resistance in bacteria. When exposed to antibiotics, only the bacteria with genetic mutations that make them resistant survive and reproduce, leading to a population of bacteria that is mostly resistant to the antibiotic.
Why should antibiotics not be over used explain in brief?
Frequent use of antibiotics can cause bacterial resistance. When bacteria are exposed to an antibiotic more than once, it can start to become immune to it. Antibiotics can also cause birth defects and other health problems. Soap and hot water works just as effectively.
How bacteria could be useful instead of hazardous?
explain how bacteria could be useful instead of hazardous.
Do we only have bacteria or viruses when we are Sick Explain your Thoughts.?
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Explain why the evolution of resistance to antibiotics in bacteria is an example of directional natural selection?
All bacteria, as are all organisms, are variants and some of these variants are resistant to antibiotics. So, a population of bacteria, in their immediate environment, are subjected to an antibiotic and most succumb. So, the resistant, survive the onslaught ( are naturally selected ) and reproduce progeny that are also resistant to the antibiotic. So, allele frequency shifts and evolution occurs die to the adaptive change conferred on the progeny population by natural selection.
Can you explain collecting methods for antibiotics?
In regards to penicillin type antibiotics, the mold penicillium produces a liquid that contains the antibiotic it uses to fight off competitors when its trying to consolidate a food source. Antibiotics are made by processing this liquid into a solid form.
