Which correctly matches a hormone to the gland from which it is produced and to its effect on target cells?
a. thyroid hormone: anterior pituitary, regulates metabolism
b. prolactin: anterior pituitary, raises blood calcium levels
c. androgens: thyroid, promotes male characteristics
d. None of the choices are correct.

Answer

d

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Biology

Campbell Biology Concepts & Connections

Chapter 26

Hormones and the Endocrine System

Discussion

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Video Transcript

this question asks, which correctly matches a hormone to the gland from which it is produced into its effect on target cells. So to approach this problem, what we would first want to do is to look at the first hormone listed and then see if it pairs up with the, um, location from where that hormone is produced. So for a we see that they have thyroid hormone coming from the interior pituitary gland. Okay, so what we know about the anterior pituitary gland is that it does send out what seems to be the thyroid hormone, but it's missing a key word here. It's missing the wards stimulating. Okay, so here they're saying thyroid hormone, okay, but they're missing the word stimulating. And just so you know, thyroid stimulating hormone is not the same thing as th or thyroid hormone. Okay, because thyroid stimulating hormone is produced in the anterior pituitary, where, as thyroid hormone itself is produced, as you guessed in the thyroid gland. Okay, so in the thyroid glands, we have th ah, and then thyroid stimulating hormone is in the anterior pituitary. Since choice A does not have that key word this, uh, thyroid stimulating hormone. That's a completely different hormone that completely different action, because with this thyroid stimulating hormone does is it stimulates the thyroid gland, which then produces our thyroid hormone, which then has metabolic activity, can regulate metabolism, so that third part of the question is correct that it regulates metabolism. But, um, we should have for the first portion not thyroid hormone, but thyroid stimulating hormone. So that means that choice is not the correct answer. Now, let's see prolactin and the anterior pituitary gland. That sounds about right, because if you think back the answer, your pituitary gland does, um, secrete prolactin. But prolactin is a direct hormone, so it acts on Lee in the mammary glands to produced milk for a lactation. Right? So it's not going to raise blood calcium up. Okay, so then we have. So he is not the correct answer. And then, for see, we have androgens paired with the thyroid. Okay, so if we think back to indigenes, the engines are hormones such as testosterone that are produced in the go nets. Okay, so we would say, um, test these okay over his do produce androgens because females do have testosterone. However, it's much lower level. So really, what you should be thinking of with androgens is, um, the testicles and the test is producing engines such as testosterone. Okay, I want to say that conference firewood, That's incorrect. So, Choi ces out of the question so none of the choices are correct. That would be right. Okay, because we went through all three and none of them have the correct answer.

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