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Endocrine System Overview

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Questions and Answers

What are the two main signaling mechanisms through which hormones affect target cells?

Reception of the signal and signal transduction

Define water-soluble hormones and provide examples.

Water-soluble hormones are proteins, short polypeptides, and some modified versions of single amino acids. Examples include most hormones produced by the endocrine glands.

What are lipid-soluble hormones and how are they classified?

Lipid-soluble hormones are small molecules made from cholesterol. They are classified as steroid hormones.

Describe the three stages of hormone signaling.

The three stages are reception, signal transduction, and response. Signup and view all the answers

How do water-soluble hormones interact with target cells?

Water-soluble hormones bind to cell surface receptors. Signup and view all the answers

What is the role of signal transduction in hormone signaling?

Signal transduction converts the signal from one form to another. Signup and view all the answers

How do lipid-soluble hormones enter target cells?

Lipid-soluble hormones can pass through the cell membrane. Signup and view all the answers

What distinguishes water-soluble hormones from lipid-soluble hormones in terms of their ability to cross cell membranes?

Water-soluble hormones cannot cross cell membranes, while lipid-soluble hormones can. Signup and view all the answers

How do water-soluble hormones initiate changes in target cells?

Water-soluble hormones bind to cell surface receptors to initiate signal transduction pathways. Signup and view all the answers

What type of molecules are water-soluble hormones made of?

Water-soluble hormones include proteins, short polypeptides, and some modified versions of single amino acids. Signup and view all the answers