Answer:
A. Toxicity
Explanation:
Toxicity is the ability of some chemical substance or medication to generate harmful effects on a living being, by coming into contact with it. Toxicology is the area of study that is dedicated to the toxicity of substances.
All substances have some degree of toxicity since any substance is capable of producing a toxic effect if a sufficient dose is administered. All substances are toxic; however, some are toxic to a greater degree compared to others.
Answer:
The generation of nitric oxide is done by almost every kind of cell present in the human body, it is one of the essential constituents that plays an important function in maintaining proper health of blood vessels. The nitric oxide acts as a vasodilator, that is, it relaxes the blood vessels' inner muscles, thus making the blood vessels to broaden.
Therefore it can be concluded that nitric oxide enhances the flow of blood and thus reduces the blood pressure. In this manner, nitric oxide helps in tackling the symptoms of conditions like angina.
At the molecular level. the activation of guanylyl cyclase is done by nitric oxide, which further catalyzes the production of cGMP. This cGMP further functions as an intracellular messenger in a pathway that results in the relaxation of the smooth muscles.
The best answer is C
Hope it helped!! :)
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