Only microbes have ionophones, which are channels in their membranes. By blocking them using antibiotics, the cell will die as they can not bring ions in and out of their cells. Human cells don't have these and so are not affected by those antibiotics.
it has more human cells actually the human body has more bacterial cells. Although it may seem more likely that the human body would have more human cells than bacterial cells. -Vasillisa
b) Antibiotics destroy a bacterial infection by disabling ribosomes in the bacteria. Eukarotic cells contain mitochondria that themselves contain ribosomes while bacterial cells have no organelles and thus have uncontained ribosomes. How do chemists use this fact to create antibiotics that can destroy a bacterial infection without harming human cells?
Bacterial and human cells both have a cell membrane, cytoplasm, and genetic material (DNA). They both carry out essential metabolic processes for survival and reproduction. However, human cells are eukaryotic, meaning they have a nucleus and membrane-bound organelles, while bacterial cells are prokaryotic and lack these features.
Antibiotics work by targeting specific structures or processes in bacteria that are essential for their survival, such as cell wall formation or protein synthesis. These structures or processes are not present in human cells, so the antibiotics are able to selectively kill the bacteria without harming human cells.
Antibiotics work by using a metabolic pathway necessary for bacterial (or viral, or fungal) life, but not necessary for human life. An example of this is sulfa drugs. All organisms require folic acid, including humans. Bacteria synthesize their folic acid from PABA (para amino benzoic acid), whereas humans ingest folic acid directly from dietary sources. Therefore, this difference may be exploited, as it is in the case of sulfa antibiotics. Sulfa antibiotics disrupt the pathway from PABA to folic acid in bacteria, but cannot do so in humans (because humans already obtain folic acid directly in dietary form). Different antibiotic classes disrupt different metabolic pathways in bacteria (but, again, not in humans).
Antibiotics target specific structures or processes unique to bacterial cells that are not present in human eukaryotic cells. For example, tetracycline interferes with bacterial protein synthesis by binding to bacterial ribosomes, while erythromycin inhibits the bacterial ribosome's ability to make proteins. Since human cells do not have the same type of ribosomes or protein synthesis mechanisms, antibiotics like tetracycline and erythromycin do not affect human cells the same way they do bacterial cells.
Antibiotics such as penicillin and tetracycline are effective in killing bacteria by targeting specific bacterial cell components that are absent in human cells, thus reducing the risk of harm to human cells. However, misuse or overuse of antibiotics can lead to antibiotic resistance in bacteria, diminishing their efficacy over time.
most of the antibiotics kill or inactivate bacteria by inhibitting the protein synthesis... protein synthesis consists of 'transcription' and 'translation'.. the translation process requiers mRNA and ribosomes.Human(eukaryotic) ribosome is different from bacterial(prokaryotic) ribosome... Antibiotics inhibit the protein synthesis by altering the ribosomal constitution.Since human ribosomes are different from bacterial ribosome,the substances which are harmful to bacterial ribosome doesn't harm human ribosomes.. Thus human cells are immune to antibiotics..
They are called antibiotics (meaning against life) and generally interfere in only a few specific chemical reactions, those found in bacterial cells but not human cells.
Antibiotics typically target features unique to microbial cells, such as bacterial cell walls, ribosomes, or metabolic pathways that are not present in human cells. For example, many antibiotics inhibit bacterial protein synthesis by binding to ribosomes that differ from those in human cells. Additionally, the structural differences in cell membranes and the presence of specific enzymes allow antibiotics to selectively disrupt microbial functions without harming host cells. This selective targeting minimizes damage to the host while effectively combating bacterial infections.
it has more human cells actually the human body has more bacterial cells. Although it may seem more likely that the human body would have more human cells than bacterial cells. -Vasillisa
Antibiotics attack proteins only found in bacteria. Each one targets a specific area, be it their cell wall, cell membrane, protein synthesis centers, and really any area that differs enough from human cells
ribosomes
Antibiotics attack proteins only found in bacteria. Each one targets a specific area, be it their cell wall, cell membrane, protein synthesis centers, and really any area that differs enough from human cells
With Antibiotics
This is essentially because bacterial cells and human cells are very different. Both bacterial and human cells use chemicals called enzymes to build their walls. Penicillin is the right chemical "shape" to chemically stick to part of the bacterial enzyme. When it does this, it stops the bacterial enzyme from working properly and this makes the bacterial cell walls weak. The weakened cell wall cannot withstand the outside pressure, it breaks up and the bacterial cell dies. Human cells are made by different types of enzymes with a different chemical shape that penecillin is unable to stick to so it cant stop the human enzymes from working. The human cell walls are thus unaffected by it and they remain strong.
they all have numbers