SCIENCE
CELL BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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All organisms are composed of one or more cells.
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The cell is the basic unit of structure and organization in organisms.
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Cells spontaneously arise from carbon and nutrients carried in the bloodstream.
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All cells come from pre-existing cells.
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Detailed explanation-1: -Answer: a. Cells spontaneously arise from carbon and nutrients carried in the bloodstream is not the part of the cell theory.
Detailed explanation-2: -Answer and Explanation: The correct answer is a. Cell theory does not state that all cells have a nucleus.
Detailed explanation-3: -The 3 parts of modern cell theory are: cells pass DNA to new cells, cells of the same species are made of the same stuff, and energy flow happens inside cells. Biologists Schleiden and Schwann first proposed classic cell theory in 1839, and Virchow added to it in 1858.
Detailed explanation-4: -Detailed Solution. The correct answer is All cells are identical.
Detailed explanation-5: -All living things are composed of cells. Cells are the basic units of structure and function for living things. All cells come from pre-existing cells. Also, organisms grow by “adding on more cells” NOT by increasing the size of their cells.