Q.97. Match the following subcellular organelles in Column I with associated functions in Column II
Column I
P. Nucleolus
Q. Peroxisomes
R. Endoplasmic reticulum
S. Golgi bodies
Column II
(i) Glycoprotein biosynthesis
(ii) Oxidation of fatty acids and amino acids
(iii) Protein trafficking
(iv) Ribosome biogenesis
(A) P-(iii), Q-(ii), R-(i), S-(iv)
(B) P-(i), Q-(ii), R-(iii), S-(iv)
(C) P-(iv), Q-(ii), R-(i), S-(iii)
(D) P-(ii), Q-(iii), R-(i), S-(iv)

Subcellular organelles perform specialized functions essential for cell survival, and matching them correctly is key for exams like NEET or CSIR. This article breaks down question Q.97 with the right answer and analyzes all options.

Correct Matching

The correct option is (C) P-(iv), Q-(ii), R-(i), S-(iii). Nucleolus handles ribosome biogenesis (iv), peroxisomes oxidize fatty acids and amino acids (ii), endoplasmic reticulum supports glycoprotein biosynthesis (i), and Golgi bodies manage protein trafficking (iii).​

Nucleolus Function

Nucleolus, labeled P, is the site of ribosome biogenesis (iv), where ribosomal RNA is synthesized and ribosomes assemble. This matches perfectly in option C.​

Peroxisomes Role

Peroxisomes, Q, carry out oxidation of fatty acids and amino acids (ii) using enzymes like oxidases, producing hydrogen peroxide which catalase breaks down. All options except D correctly pair this.​

ER in Glycoproteins

Endoplasmic reticulum, R, is involved in glycoprotein biosynthesis (i) via N-linked glycosylation on rough ER proteins. Option C pairs it correctly, while A and D mismatch it.​

Golgi Bodies Duties

Golgi bodies, S, handle protein trafficking (iii) by sorting, packaging proteins into vesicles for lysosomes, secretion, or plasma membrane. They also modify glycoproteins, but trafficking is the core match here; option C fits best over B’s (iv).​

Options Breakdown

Master these matches for biology exams—focus on ER for initial glycosylation and Golgi for final processing and transport.​