The answer is Law of Dominance
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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All types of matter are made up of atoms...
<span>Sympathetic dominance---
Increase in muscle mass----- Raise
Decreased in insulin----- </span>Lower the tmr<span>
Decrease in TSH ---- Lower the tmr
Increase in adrenal cortex function ------</span>raising the tmr<span>
Increase in thyroxine ---- </span>raising the tmr<span>
Training for a marathon -----raising the tmr
Malabsorption of nutrients-------- </span>Lower the tmr<span>
Decrease in adrenal medulla function ------ </span>Lower the tmr<span>
Epinephrine secretion------- </span>raising the tmr
The total metabolic rate is the total energy used by the body each day. Physical activity such as Training for a marathon require more energy and leads to increasing the tmr. Whereas, malabsorption of nutrients lowering the tmr because less food is being supplied, and therefore less energy production.