Is methionine polar?
Understand the Problem
The question is asking whether the amino acid methionine is classified as polar or not. To answer this, we will look at the chemical structure of methionine and its properties.
Answer
Methionine is non-polar.
Methionine is non-polar.
Answer for screen readers
Methionine is non-polar.
More Information
Methionine has a nonpolar side chain composed mainly of hydrocarbons, and the similar electronegativity of the sulfur and carbon atoms in its side chain means no significant dipole moment exists, classifying it as non-polar.
Tips
A common mistake is to assume that all sulfur-containing amino acids are polar. Methionine is an exception due to its side chain structure.
Sources
- Amino Acids - bio.libretexts.org
- Why is methionine nonpolar? - Quora - quora.com
- Nonpolar Amino Acid - an overview | ScienceDirect Topics - sciencedirect.com
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