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?

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Solution

$α$ amino acid forms polypeptide chain by elimination of water molecules.
$α a m i n o a c i d \to R - α C H | N H_{2} - C O O H$
$n R - C H | N H_{2} - C O O H ⟶ H_{2} N - R | C H - ⎡ ⎢ ⎢ ⎣ O | | C - N H ⎤ ⎥ ⎥ ⎦ ↑ p e p t i d e l i n k a g e - R | C H - C O O H$

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Amino acids are classified as acidic, basic or neutrl depending upon the relative number of amino and carboxyl groups in their molucule. Which of the following are acidic?
(a) $(C H_{3}) C H - C H | N H_{2} - C O O H$
(b) $H O O C - C H_{2} - C H_{2} - C H | N H_{2} - C O O H$
(c) $H_{2} N - C H_{2} - C H_{2} - C H_{2} - C O O H$
(d) $H O O C - C H_{2} - C H | N H_{2} - C O O H$

Q. In a polypeptide, the carboxyl group of one amino acid is bound to the amino group of the next amino acid by .

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.

Which of the following is an amino acid?

Q. A bond formed between carboxyl group of one amino acid and amino group of adjacent amino acid, is called

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

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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?

α amino acid forms polypeptide chain by elimination of water molecules. α amino acid→ R−αCH|NH2−COOH nR−CH|NH2−COOH⟶H2N−R|CH−⎡⎢ ⎢⎣O||C−NH⎤⎥ ⎥⎦↑peptide linkage−R|CH−COOH

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?

$α$ amino acid forms polypeptide chain by elimination of water molecules.
$α a m i n o a c i d \to R - α C H | N H_{2} - C O O H$
$n R - C H | N H_{2} - C O O H ⟶ H_{2} N - R | C H - ⎡ ⎢ ⎢ ⎣ O | | C - N H ⎤ ⎥ ⎥ ⎦ ↑ p e p t i d e l i n k a g e - R | C H - C O O H$