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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.

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Why pencilin does not harm human cells?

Penicillin targets the cell walls of bacteria, which are different from human cells. Human cells do not have cell walls like bacteria do, so penicillin does not harm them. This allows penicillin to selectively target bacterial cells while leaving human cells unharmed.


Does erythromycin affect human cells?

Yes, erythromycin can affect human cells by inhibiting protein synthesis in bacterial cells but can also affect human mitochondria due to their bacterial origin. This may lead to side effects in some individuals, especially at higher doses or with prolonged use.


What compound kills bacteria without harming the cells of humans?

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.


Why does penicillin kill only actively multipling cells and lysozyme will kill cells in any stage of growth?

Penicillin inhibits transpeptidase, and enzyme that is necessary for bacterial cell wall synthesis. If a cell is not actively multiplying, then no cell wall synthesis is occurring and, therefore, penicillin does not inhibit the bacteria.


How do lysozyme and penicillin differ in their effect on cell walls?

Penicillin blocks the final stages of peptidoglycan synthesis. If penicillin is present when bacterial cells are dividing, the cell cannot form complete wall and they die.The enzyme lysosome, found in human body secretions, digest peptidoglycan . This helps prevent bacteria from entering the body.

Related Questions

Why pencilin does not harm human cells?

Penicillin targets the cell walls of bacteria, which are different from human cells. Human cells do not have cell walls like bacteria do, so penicillin does not harm them. This allows penicillin to selectively target bacterial cells while leaving human cells unharmed.


Does penicillin affect birth control?

Penicillin does not affect birth control.


What cells produce penicillin?

Penicillin is produced by the mold Penicillium notatum. The penicillin-producing cells are specialized structures called conidiophores, found in the mycelium of the mold. These cells are responsible for producing and releasing penicillin into the environment.


Does erythromycin affect human cells?

Yes, erythromycin can affect human cells by inhibiting protein synthesis in bacterial cells but can also affect human mitochondria due to their bacterial origin. This may lead to side effects in some individuals, especially at higher doses or with prolonged use.


Why doesn't penicillin kill humans?

The penicillin kills bacteria by interfering with repairs to the bacterial cell wall. Human cells don't have a cell wall, and don't use the same enzymes that make the bacteria vulnerable.


Explain the effect of penicillin on prokaryotic and eukaryotic cells?

Penicillin inhibits the synthesis of bacterial cell walls by targeting the enzymes involved in their production, which are specific to prokaryotic cells. In contrast, eukaryotic cells have different cell wall structures and are not affected by penicillin. This makes penicillin selectively toxic to bacteria, making it an effective antibiotic while sparing eukaryotic cells.


How does the environment affect human cells?

Yes, it can cause cancer.


Can horses have human penicillin?

Procaine Penicillin, Amoxicillin etc. Can be used on horses.


Why do antibiotics kill bacteria and not human cells?

Because bacterial cells and human cells aren't the same. Penicillin works by interfering with how bacterial cell walls are built, and human cells don't have bacterial cell walls. (Turns out all bacterial cells aren't the same, either, but penicillin works against a lot of them.) One of the challenges in medicine is finding antibiotics that work against bacteria's biology, but that don't interfere with human biology. This is called selectivity. It's a really important principle of medications against all infections (you want the drug to selectively kill the infecting organism instead of your own cells) and against cancer, too (you want the drug to selectively kill the cancer cells instead of the healthy ones).


Does metronidazole affect the birth control pill?

does metronidazole affect the contraceptive injection? im on penicillin the same time aswell but my health clinic said penicillin doesnt affect the injection? is this right? :/


What was Alexander flemings hypothesis for penicillin?

Alexander Fleming's hypothesis for penicillin was that the mold Penicillium notatum produced a substance (later identified as penicillin) that had antibacterial properties and could be used to treat bacterial infections. He hypothesized that this substance could be purified and used to kill harmful bacteria in the human body without harming human cells.


Who discovered the effect of penicillin on living cells?

Alfred nobel