1. In -amino acids the amino and carboxy lic acid groups are separated by- a) tw

Question

1. In -amino acids the amino and carboxy lic acid groups are separated by- a) two carbon atoms b) one carbon atom c) peptide linkage d) amide linkage e) none of these 2. Amino acids are connected to each other by a) an ether linkage b) a peptide linkage c) an ester linkage d) none of these 3, when thirty amino acids are connected to each other, they form a) a tripeptide b) a protein c) a polypeptide d) a tetrapeptide e) none of these 4. When more than fifty amino acids are connected to each other, they form form a) a tripeptide b) a protein c) a polypeptide d) a tetrapeptide e) none of these 5. Proteins found in humans have all amino acids with configuration. a) D b) L c) meso d) A&B; e) none of these 6. Justify with structures why arginine (pl-) is a more basic amino acid than histidine (pl.) is.

Explanation / Answer

1 b , 2 b, 3 c, 4 b, 5 b, 6 in orginine in guanadine group nitrogen lonepair is resonence with imine.

7 a is S, b is R, cC is S

8 c, 9 option 1, 10 opion 4, 11 option 1, 2, 3, 5

12 option 1 and 2

13 option 4

14 option 3

15 option 2

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