Match List-I with List-II List-

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Home Questions 6MQGGT9SF4

Target Exam

CUET

Subject

Chemistry

Chapter

Organic: Biomolecules

Question:

Match List-I with List-II

List-I Structure of Protein	List-II Function
(A) Primary Structure	(I) Gives rise to Fibrous and Globular Proteins
(B) Secondary structure	(II) Sequence of amino acid
(C) Tertiary Structure	(III) Shape of polypeptide Chain
(D) Quaternary Structure	(IV) Spatial arrangement of sub-units

Choose the correct answer from the options given below:

Options:

(A)-(II), (B)-(III), (C)-(I), (D)-(IV)

(A)-(I), (B)-(II), (C)-(III), (D)-(IV)

(A)-(I), (B)-(II), (C)-(IV), (D)-(III)

(A)-(III), (B)-(IV), (C)-(I), (D)-(II)

Correct Answer:

(A)-(II), (B)-(III), (C)-(I), (D)-(IV)

Explanation:

The correct answer is Option (1) → (A)-(II), (B)-(III), (C)-(I), (D)-(IV)

List-I Structure of Protein	List-II Function
(A) Primary Structure	(II) Sequence of amino acid
(B) Secondary structure	(III) Shape of polypeptide Chain
(C) Tertiary Structure	(I) Gives rise to Fibrous and Globular Proteins
(D) Quaternary Structure	(IV) Spatial arrangement of sub-units

(A) Primary Structure: This is the most basic level, referring specifically to the sequence of amino acids in a polypeptide chain. Any change in this sequence can result in a different protein.

(B) Secondary Structure: This refers to the shape of the polypeptide chain as it folds due to hydrogen bonding. Common shapes include the $\alpha$-helix and $\beta$-pleated sheet.

(C) Tertiary Structure: This level represents the overall folding of the secondary structure. It gives rise to two major molecular shapes: Fibrous and Globular proteins. It is stabilized by various bonds like disulfide bridges and hydrophobic interactions.

(D) Quaternary Structure: This refers to the spatial arrangement of sub-units (two or more polypeptide chains) with respect to each other. A classic example is hemoglobin.