Class NEET 2026 ALL Q #2001
KNOWLEDGE BASED
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4 Marks 2026 NTA-RE-NEET-2026 MCQ SINGLE
Cell theory was formulated by
(A) Antonie Von Leeuwenhoek
(B) Schleiden and Schwann
(C) Robert Brown
(D) Singer and Nicolson
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Correct Answer: B

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Detailed Solution

Step 1: Analyze the historical context of Cell Theory

Cell theory is a fundamental biological principle stating that all living organisms are composed of cells. This theory was proposed in the 19th century to unify the understanding of biological structures.

Step 2: Evaluate the contributors

Matthias Schleiden (a botanist) and Theodor Schwann (a zoologist) are credited with formulating the cell theory in 1838 and 1839, respectively. They concluded that all plants and animals are composed of cells and products of cells.

Step 3: Verify other options

Antonie Von Leeuwenhoek discovered free-living cells; Robert Brown discovered the nucleus; Singer and Nicolson proposed the Fluid Mosaic Model of the plasma membrane.

Final Answer: Schleiden and Schwann

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Pedagogical Audit
Bloom's Analysis: This is an REMEMBER question because it requires the student to recall specific historical facts and scientific contributors from the NCERT Biology textbook.
Knowledge Dimension: FACTUAL
Justification: The question tests the ability to retrieve basic terminology and historical data associated with the discovery of cell biology.
Syllabus Audit: In the context of NEET, this is classified as KNOWLEDGE (Textbook). This question aligns with the 'Cell: The Unit of Life' chapter, which is a high-yield topic for NEET aspirants.

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