PHOTOSYNTHESIS
THE CHLOROPLAST
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A cell is the smallest living unit of all organisms
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All living things are made of cells
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All cells come from other pre-existing cells
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All cells have a nucleus
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Detailed explanation-1: -The correct option is C All cells are surrounded by cell wall. Schleiden, Schwann and Virchow contributed to the formation of cell theory.
Detailed explanation-2: -Though cells require water for its composition and survival, it is not a part of cell theory.
Detailed explanation-3: -The three tenets of the cell theory are: All living organisms are composed of one or more cells. The cell is the basic unit of structure and organization in organisms. Cells arise from pre-existing cells.
Detailed explanation-4: -the classical cell theory does not include this. but using either classical or modern theory, it is false that all cells have DNA surrounded by a nucleus. though prokaryotes (e.g. bacteria) contain DNA, they lack a nucleus. it is only in eukaryotes (e.g. animal cells) that the DNA is surrounded by a nucleus.
Detailed explanation-5: -Detailed Solution. The correct answer is All cells are identical.