The left end of the polysaccharides is_­­-------------while the right end is ______in nature.

(A)reducing and non- reducing respectively

(B)non- reducing and reducing respectively

(C)both ends are non-reducing

(D)both ends are reducing

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Proteins are ______ of amino acids

(A)homopolymer

(B)heteropolymer

(C)Neither homopolymer nor heteropolymer

(D)None of these

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Which of the following is responsible for the formation of primary polypeptide?

(A)peptide bond

(B)Hydrogen bonding

(C)Di-sulphide bond

(D) Ionic bond

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How many water molecules will be released if four amino acids will be joined linearly neglecting proline in the chain?

(A)4

(B)3

(C)2

(D)1

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Which of the following is responsible for the stability of secondary polypeptide?

(A)peptide bond

(B)Hydrogen bonding

(C)Di-sulphide bond

(D) Ionic bond

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How many of the following bonds is present in tertiary structure of protein

Hydrophobic Interaction, Hydrogen bonding, Di-sulphide bond, Ionic bond, peptide bond

(A)5

(B)4

(C)3

(D)2

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Majority of the enzymes and proteins exist in which type of structure of proteins?

(A)Primary

(B)Secondary

(C)Tertiary

(D)Quaternary

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Which of the following is the strongest bond in protein?

(A)peptide bond

(B)Hydrogen bonding

(C)Di-sulphide bond

(D) Ionic bond

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Quaternary structure of proteins are formed by

(A)primary structure of proteins

(B)Secondary structure of proteins

(C)Tertiary structure of proteins

(D)Quaternary structure of proteins

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Which of the following proteins exist in their quaternary structure

(A)Myoglobin

(B)Haemoglobin

(C)Globulin

(D)Both A and B

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