Definition

A necessary building block for proteins that the body cannot produce on its own, and must be obtained from food.

Example

Isoleucine is important for muscle repair and energy production.

Conversation

I just read that isoleucine is an essential amino acid for muscle recovery.

Really? I didn't know that it played such an important role.

Yeah, it's also isomeric with leucine, which is pretty interesting.

I'll have to look into that more; it sounds important for my diet.

Synonyms & Antonyms

Root Explanation

**Isoleucine** → It is formed from "iso-" (meaning equal or similar) and "leucine" (from Greek "leukos", meaning white). The prefix "iso-" indicates that isoleucine is an isomer of leucine, meaning it has a similar structure but differs in arrangement. Thus, isoleucine refers to a specific form of leucine that is structurally similar yet distinct.

Memory Tip

Think of 'iso-' meaning 'equal' or 'similar' and remember that isoleucine is a form of leucine that is similar in structure.

Visually Confused Words