This drug inhibits the growth of bacterial cells but not human cells. This is an example of the selective toxicity of antibiotics.
Folic acid is an essential component for all cells to synthesize nucleic acids (DNA and RNA). Human cells do not synthesize folic acid and they take it through food. Bacterial cells are impermeable to folic acid and hence they need to synthesize their own folic acid.
Antibiotics target the metabolic pathway of folic acid synthesis in bacteria by inhibiting one of the enzymes in this pathway. These drugs are only toxic to bacteria but not to humans because humans do not have the folic acid synthesis pathway and hence they do not get affected by the action of the antibiotic. This is known as the selective toxicity of antibiotics.
These antibiotics are designed in a way to target the infecting agent (bacteria) while rendering minimal or no toxicity to the host (humans).
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the answer is C adaptation increases the chances that an individual will survive longer. as a result the individual traits will become more common within the population
break down lactose
β-galactosidase is necessary for organisms as it is a principal provider in the generation of energy and a source of carbons through the breaking of lactose to galactose and glucose.
β-galactosides combine carbohydrates comprising galactose where the glycosidic linkage lies above the galactose particle. Substrates of various β-galactosidases incorporate, lactose, ganglioside GM1, lactosylceramides, and various glycoproteins.
Answer:
I believe the answer is “B” They have the same number and kinds of chromosomes.
Explanation:
we all have 46 chromosomes.
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Para poder generar todos los movimientos y realizar funciones vitales que es lo que nos permite mantenernos activos.
