Cell theory was formulated by

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The correct answer is: Option 2: Schleiden and Schwann Explanation: The Cell Theory was formulated by Matthias Schleiden and Theodor Schwann in the early 19th century. Their key contributions were: Schleiden proposed that all plants are made up of cells. Schwann extended this idea to animals, proposing that all animals are also composed of cells. Together, they laid the foundation for the Cell Theory , which states that: All living organisms are made of cells. The cell is the basic unit of structure and function in living organisms. All cells arise from pre-existing cells. Thus, Schleiden and Schwann are credited with formulating the Cell Theory .

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Schwann and Robert Brown

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Schleiden and Schwann

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Robert Hook and Robert Brown

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Schleiden and Robert Brown

List I		List II
A	Nucleolus	I	Site of formation of glycolipid
B	Centriole	II	Organization like the cartwheel
C	Leucoplasts	III	Site for active ribosomal RNA synthesis
D	Golgi apparatus	IV	For storing nutrients

Column-I		Column-II
1.	Hypertonic	p.	Two molecules move in the same direction across the membrane.
2.	Capillarity	q.	External solution is more concretrated than cell sap.
3.	Symport	r.	Water loss in the form of droplets.
4.	Guttation	s.	Ability of water to rise in thin tubes.

Cell theory was formulated by

The Correct Option is B

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