choline

Table of Contents

Introduction References & Edit History Related Topics

Images

The actions of enzymes

Read Next

Bohr atomic model of a nitrogen atom.

How the Nitrogen Cycle Works

Chemical equations Chemical reactions chemistry

How Do You Balance a Chemical Equation?

Illustration of molecules. (molecular, chemistry, science)

Why Is a Group of Molecules Called a Mole?

Discover

Computer mapping, woman at early 1990s computer

Timeline of the 1990s

Figure 13: A Maxim machine gun, belt-fed and water-cooled, operated by German infantrymen, World War I.

7 Deadliest Weapons in History

Thumbnail for flags that look alike quiz Russia, Slovenia, Iceland, Norway

Flags That Look Alike

Portrait of Marie Antoinette by Jean-Francois Janinet, 1777. Color etching and engraving with gold leaf printed on two sheets, 30x13.5 in.

Did Marie-Antoinette Really Say “Let Them Eat Cake”?

Small, white rat (genus Rattus) on a glass table. (rodent, laboratory, experiment)

Cruel and Unusual Punishments: 15 Types of Torture

Close up of praying mantis walking on stone ground against a blurred background in Japan

6 Animals That Eat Their Mates

Candles Burning On Table In Church

What Is the Most Widely Practiced Religion in the World?

choline: Related Content

Written and fact-checked by The Information Architects of Encyclopaedia Britannica

Photos

The actions of enzymes

See All Images →

Topics

acetylcholine vitamin amine alkaloid guanidine amide urea capsaicin biotin nitrile oxime para-aminobenzoic acid

Key People

Best

Charles H. Best

American physiologist