Question

$\begin{array}{ccccc}& & H& & \\ & & |& & \\ H_{2}N& -& C& -& COOH\\ & & |& & \\ & & R& & \end{array}$ is general formula of amino acid. Here $R$ stands for

• A. An amino acid
• B. A carboxylic group
• C. A variable group
• D. A hydroxyl group

Answer 1

The correct option is C A variable group

Proteins are building blocks of the body. The proteins are made up of amino acids. The amino acids are linked together by peptide bonds to form a protein. The peptide bond is formed by the linkage of the carboxyl group of one amino acids with the amino group of the other amino acids.

So, the correct answer is option C.