Class NEET 2026 ALL Q #2011
COMPETENCY BASED
APPLY
4 Marks 2026 NTA-RE-NEET-2026 MCQ SINGLE
Smooth endoplasmic reticulum
(A) is a site for the synthesis of carbohydrates
(B) has ribosomes attached to its surface
(C) is the major site for the synthesis of lipids
(D) is actively involved in protein synthesis
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Correct Answer: C

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Detailed Solution

Step 1: Analyze the structure of Endoplasmic Reticulum (ER)

The Endoplasmic Reticulum is divided into two types based on the presence or absence of ribosomes. Rough Endoplasmic Reticulum (RER) has ribosomes attached to its surface, whereas Smooth Endoplasmic Reticulum (SER) lacks ribosomes.

Step 2: Evaluate the functions of SER

The primary function of the Smooth Endoplasmic Reticulum is the synthesis of lipids, including steroids and phospholipids. It also plays a role in detoxification processes in liver cells and calcium storage in muscle cells.

Step 3: Eliminate incorrect options

Option (A) is incorrect as carbohydrate synthesis is not the primary role of SER. Option (B) is incorrect because the presence of ribosomes defines RER, not SER. Option (D) is incorrect because protein synthesis is the function of RER due to the presence of ribosomes.

Final Answer: Option (C)

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Pedagogical Audit
Bloom's Analysis: This is an APPLY question because the student must differentiate between the functional roles of cellular organelles based on their structural characteristics.
Knowledge Dimension: CONCEPTUAL
Justification: The question tests the understanding of the relationship between organelle structure (presence/absence of ribosomes) and its specific biological function.
Syllabus Audit: In the context of NEET, this is classified as COMPETENCY. This question aligns with the NCERT Biology curriculum (Cell: The Unit of Life), requiring students to recall and apply knowledge of cell biology to distinguish between organelle types.
||KEY:C

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