Which correctly matches a hormone to the gland from which it...

Name: Problem 2, Chapter 26: Campbell Biology Concepts & Connections
Uploaded: 2020-04-27T23:34:45-08:00
Duration: 3 min 31 s
Channel: Dennis Howard
Description: 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.

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.

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.

Key Concepts

Hormone-Receptor Interaction

The interaction between a hormone and its receptor on target cells is fundamental to endocrine signaling. This binding triggers intracellular processes that result in specific biological responses, emphasizing the precision and specificity of hormonal regulation.

Gland-Specific Hormone Production

Each endocrine gland typically produces specific hormones that are characteristic of its role in the body. This concept underscores the importance of accurate hormone-gland matching, as the origin of a hormone is directly linked to its regulatory functions and target cell effects.

Hormones

Hormones are signaling molecules synthesized and released by endocrine glands. They affect the functions of distant cells by binding to specific receptors, thereby orchestrating a wide range of biological activities and maintaining physiological balance.

Endocrine System

The endocrine system is a network of glands that produce and secrete hormones directly into the bloodstream, allowing these chemical messengers to travel to target cells and tissues throughout the body. It is crucial in regulating various physiological processes such as growth, metabolism, and homeostasis.

Transcript

00:01 This question asks, which correctly matches a hormone to the gland from which it is produced and to its effect on target cells.

00:08 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 location from where that hormone is produced.

00:23 So for a, we see that they have thyroid hormone coming from the anterior pituitary gland.

00:29 Okay.

00:29 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.

00:42 It's missing the word stimulating.

00:44 Okay.

00:44 So here they're saying thyroid hormone, okay? but they're missing the word stimulating.

00:55 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, whereas thyroid hormone itself is produced, as you guessed, in the thyroid gland, okay? so in the thyroid glands, we have th, and then thyroid stimulating hormone is in the anterior pituitary.

01:32 Since choice a does not have that key word, this thyroid stimulating hormone, that's a completely different hormone, the completely different action.

01:40 Because what 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.

01:54 So that third part of the question is correct, that it regulates metabolism, but we should have, for the first portion, not thyroid hormone, but thyroid stimulating hormone.

02:05 So that means that choice a is not the correct...

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