SSC CGL 2025 Tier-I · 13 September 2025, Shift 2 · General Awareness · Question 13 of 100

We transcribed this text from the pictures on a candidate's response sheet for this shift; the answer is the key SSC colour-marked on that sheet. Solution last reviewed 13 September 2026.

Where this paper and its answers come from

SSC does not publish CGL question papers or a public answer key. From 2025 the candidate response sheet prints every question and option as a picture, so the text here is transcribed from those pictures for this shift and checked against them independently; where the layout carries meaning, the picture is shown as well. Each answer is the key SSC colour-marked on that sheet. SSC released a tentative key for challenge and later its final one, both only to candidates behind a login, and the sheet does not say which of the two it carries. The solutions are written by UnlockIAS.

What is the primary function of the Golgi apparatus?

(a)ATP production
(b)Protein modification
(c)Lipid synthesis
(d)DNA replication

Answer

Why

Correct — B. The Golgi apparatus receives proteins made by ribosomes on the endoplasmic reticulum, modifies them in its cisternae, and releases them from its trans face.

NCERT sums up its main job as packaging materials, for targets inside the cell or for secretion outside it. It is also an important site where glycoproteins and glycolipids are formed.

Why the others are wrong

(a)
ATP production — ATP is made mainly in the mitochondria, through cellular respiration. The Golgi apparatus processes and packages proteins; it is not the cell's energy source.
(c)
Lipid synthesis — NCERT names the smooth endoplasmic reticulum as the major site of lipid synthesis. The Golgi's link with lipids is forming glycolipids.
(d)
DNA replication — Nuclear DNA is copied in the nucleus, during the S phase before division. The Golgi apparatus has no DNA of its own.

Concept

Proteins bound for secretion or for membranes follow an assembly line. Ribosomes on the rough ER make them, vesicles carry them to the Golgi's cis face, and they are modified as they move towards the trans face.

From there they leave in vesicles. Lysosomes are one product: NCERT describes them as vesicles formed by packaging in the Golgi apparatus.

Key facts

Camillo Golgi first observed densely stained reticular structures near the nucleus in 1898.
Golgi cisternae are flat, disc-shaped sacs 0.5–1.0 µm across, stacked parallel to each other.
The Golgi apparatus is an important site of formation of glycoproteins and glycolipids.
The smooth ER is the major site of lipid synthesis.

Study next

The endomembrane system: ER, Golgi, lysosomes and vacuolesMitochondria and ATP synthesisLysosomes and their hydrolytic enzymes

Common traps

Choosing lipid synthesis because the Golgi forms glycolipids, when NCERT gives lipid synthesis to the smooth ER.

The organelle's discoverer is asked at 25 Sep 2024, 16:00, GA Q.22, which describes densely stained reticular structures around the nucleus and keys Camillo Golgi.

Related PYQs

No directly related past PYQ was found.

Topic: Scientific Research — all 220 SSC CGL questions on it, every solved shift.