OBJECTIVE LIFE SCIENCE
MOLECULAR BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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All cells come from preexisting cells
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All living things are made up of cells
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New cells arise from the pre-existing cells
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Spontaneous generation does not occur
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Detailed explanation-1: -The Cell Theory was first given by M.J Schleiden and Theodor Schwann in 1839. It states that all the living beings whether plants or animals are composed of cells that are from pre-existing cells.
Detailed explanation-2: -In 1838, Matthias Schleiden, a German botanist, concluded that all plant tissues are composed of cells and that an embryonic plant arose from a single cell. He declared that the cell is the basic building block of all plant matter. This statement of Schleiden was the first generalizations concerning cells.
Detailed explanation-3: -The cell theory was proposed by Matthias Jakob Schleiden and Theodor Schwann. This theory proposed that “ all living beings whether plants or animals are composed of a group of cells which arise from the pre-existing cells.”