Steroids
Definition
Steroids are a class of lipids characterized by a carbon skeleton consisting of four fused rings. They serve various functions in organisms, including as components of cell membranes and as signaling molecules.
Analogy
Imagine steroids as special keys designed to unlock specific doors within your body. Just as a key's unique shape allows it to open a particular door, the structure of a steroid determines which cellular processes it can influence—ranging from helping build cell structures to sending messages that regulate metabolism.
Related terms
Cholesterol: Cholesterol is a type of steroid that is an essential component of cell membranes and serves as a precursor for the synthesis of other steroids, including hormones.
Hormones: Hormones are signaling molecules produced by glands in the body, and many, such as testosterone and estrogen, are steroids that regulate development, metabolism, and reproductive functions.
Lipids: Lipids are a broad group of naturally occurring molecules which include fats, oils, waxes, and certain vitamins among others; steroids fall under this category due to their hydrophobic and amphipathic properties.
Are you a college student?
Study guides for the entire semester
200k practice questions
Glossary of 50k key terms - memorize important vocab
Resources
© 2024 Fiveable Inc. All rights reserved.
AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.