Any of various molecules that are capable of accepting one or two electrons from one molecule and donating them to another in the process of electron transport. As the electrons are transferred from one electron carrier to another, their energy level decreases, and energy is released. Cytochromes and quinones (such as coenzyme Q) are some examples of electron carriers.
Origin Story: Why We Call Them “Emmys”Many viewers know the names and faces of the actors and actresses that walk the red carpet at the Emmy Awards, but few are familiar with the story behind the true star of the show: Emmy. Where does this popular awards show get its name? What are the Emmys named for? The word Emmy refers to the statuette that’s handed out during the awards ceremony. …
If you see an odd glow in the sky tonight, here’s what it’s called and its causeYou’ve heard of the northern lights? The next few days you may be able to see lights even if you aren’t that far north. The sun erupted on Sunday, spewing plasma, “a highly ionized gas containing an approximately equal number of positive ions and electrons” right in our direction. There’s no reason to freak out; solar storms are relatively common, and the most significant impact they have on …
- electron affinity,
- electron camera,
- electron capture,
- electron diffraction,
- electron gun,
- electron hole,
- electron lens,
- electron micrograph
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.