Which of the following is true when describing the permissive effect of a hormone?

Which of the following is true when describing the permissive effect of a hormone? a) a permissive hormone can cancel out the effect of another hormoneb) this means that two hormones have a greater effect than just onec) the hormone can act alone when having an effect on a tissued) is usually the result of a second hormone's exposure on target cells

Answers

The correct answer is d) is usually the result of a second hormone's exposure on target cells

Explanation:

Permissiveness is described as the situation in which one hormone is not able to exert its full effect on the target cell and it requires the presence of another hormone to exert its full potential on the target cell.

Therefore the permissive effect is usually the result of the secondary hormone's presence or exposure on target cells. For example, thyroid hormone increases the effect of epinephrine on target cells by increasing its receptors on the target cell.

Without thyroid hormone, the epinephrine can not exert full effect on its target cell. Therefore the right answer is d.

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Atp is is our little "pocket" of energy. of course, if you have too little, then it means you have too little energy, and you'll pass out. the way to not have enough, is to have no energy sources (glucose, fats, proteins). you can't have too many atp molecules. cycles like the krebs cycle produce it, but if you have too much of any substrate (or too little for that matter), the cycle stops and atp is no longer made (it stops until substrate levels are such that the process can go on). in any case, this is unlikely since atp is constantly hydrolyzed and remade, even while you're asleep. you won't have too much. if you have zero, you are dead or dying.

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