Amino acids are organic compounds that contain amino and carboxylic groups. In the form of proteins, amino acid residues form the second-largest component of human muscles and other tissues. Beyond their role as residues in proteins, amino acids participate in a number of processes such as neurotransmitter transport and biosynthesis.

Which of the following is an amino acid?

H_{2} N - C O O H

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Solution

The correct option is D
An amino acid is a molecule that has a carboxylic acid group and an amine group that are each attached to a carbon atom called the $α$ -carbon.
Hence, option (d) molecule is an amino acid called proline.

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Q. Amino acids are organic compounds that contain amino and carboxylic groups. In the form of proteins, amino acid residues form the second-largest component of human muscles and other tissues. Beyond their role as residues in proteins, amino acids participate in a number of processes such as neurotransmitter transport and biosynthesis.

Consider the following sequence of reaction for production of an alpha amino acid. The amino acid formed is:

(H O C H_{2} C H (N H_{2}) C O O H)

is an essential amino acid. The correct Fisher projection od serine is:

Amino acids can be classified as $α -, γ -, δ -$ and so on depending upon the relative position of an amino group with respect to a carboxyl group. Which type of amino acids forms polypeptide chain in proteins?

Q. Assertion :Amino acids are called

α

-amino acids. Reason: Amino acids are organic compounds containing an amino group and an acidic group as substitutes on the

α

. -carbon

Q. Proteins are digested into amino acids and fats into fatty acids. Which one of the following organs is responsible for absorption of fatty acids and amino acids?

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The correct option is D An amino acid is a molecule that has a carboxylic acid group and an amine group that are each attached to a carbon atom called the α-carbon. Hence, option (d) molecule is an amino acid called proline.

The correct option is D
An amino acid is a molecule that has a carboxylic acid group and an amine group that are each attached to a carbon atom called the $α$ -carbon.
Hence, option (d) molecule is an amino acid called proline.