Which of the following statements is not correct?

Question

Which of the following statements is not correct? (A) Proteins are polyamides formed from amino acids. (B) Except glycine, all other amino acids show optical activity (C) Natural proteins are commonly made up of L-isomer of amino acids. (D) In α- amino acids, -NH2 and - COOH groups are attached to different carbon atoms.

Tardigrade Admin · Accepted Answer

In α- amino acids, —NH2 and —COOH groups are attached to the same carbon atom, <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/chemistry/c84eb645731c2645a2de4f7d4a8e9b0f-.png" />

Q. Which of the following statements is not correct?

Proteins are polyamides formed from amino acids.

Except glycine, all other amino acids show optical activity

Natural proteins are commonly made up of $L$ -isomer of amino acids.

In $α$ - amino acids, $- N H_{2}$ and - $COO H$ groups are attached to different carbon atoms.

In $α -$ amino acids, $— N H_{2}$ and $— COO H$ groups
are attached to the same carbon atom,

Q. Which of the following statements is not correct?

Proteins are polyamides formed from amino acids.

Except glycine, all other amino acids show optical activity

Natural proteins are commonly made up of L-isomer of amino acids.

In α- amino acids, −NH2​ and - COOH groups are attached to different carbon atoms.

In α− amino acids, —NH2​ and —COOH groups are attached to the same carbon atom,

Natural proteins are commonly made up of $L$ -isomer of amino acids.

In $α$ - amino acids, $- N H_{2}$ and - $COO H$ groups are attached to different carbon atoms.

In $α -$ amino acids, $— N H_{2}$ and $— COO H$ groups
are attached to the same carbon atom,