The answer is A: They produce pollutants that harm people.
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In its second messenger role, cAMP activates enzymes called kinases, whose job is to regulate other enzymes by adding phosphate groups to them.
<h3>What is a kinase?</h3>
A kinase is an enzyme that catalyzes the addition of phosphate group and thus regulates cell signaling.
Moreover, phosphatases are enzyme that catalyze the removal of a phosphate group in a protein.
In conclusion, in its second messenger role, cAMP activates enzymes called kinases, whose job is to regulate other enzymes by adding phosphate groups to them.
Learn more about phosphatases here:
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Answer:
The correct answer is the endocrine system.
Explanation:
The sympathetic division of the autonomic nervous system and the endocrine system are the two prime systems that take part in the stress response.
At the time of acute or chronic stress, the endocrine system first makes the hypothalamus to discharge CRH or corticotropin-releasing hormone into the bloodstream. The release of CRH further makes the anterior pituitary to discharge ACTH or adrenocorticotropic hormone into the blood. This further stimulates the adrenal cortex to discharge cortisol, that is, one of the glucocorticoid hormone into the bloodstream.
The cortisol finally makes the organs and tissues present within the body to effectively cope up with the initial stress stimulus.
It is true that cells spend most of their time dividing. In fact, they spend 78% of their "life" in interphase.
