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Practice problem

Amino Acids — Overview & Structure

By Reagan Devine
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Given below are three examples of amino acids with the R groups outlined with a red box.

Isoleucine has a three-membered carbon chain as a functional group. Phenylalnine has a six-membered carbond ring. Asparagine has an amino group, which contains nitrogen, double bonded to an oxygen atom.

Image Source: By NEUROtiker CC BY-SA 3.0, via Wikimedia Commons, Image Source: By NEUROtiker CC BY-SA 3.0, via Wikimedia Commons, Image Source: By NEUROtiker CC BY-SA 3.0, via Wikimedia Commons

Which amino acid(s) has a non-polar R group? Check all that apply.

Choose all correct answers

Type a concept, like “slope” or “photosynthesis”.

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