CELL STRUCTURES AND FUNCTION
CELL STRUCTURE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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all existing cells from by free-cell formation
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all cells have a nucleus
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all existing cells are produced by other living cells
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all cells are eukaryotic
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Detailed explanation-1: -By the late 1830s, botanist Matthias Schleiden and zoologist Theodor Schwann were studying tissues and proposed the unified cell theory. The unified cell theory states that: all living things are composed of one or more cells; the cell is the basic unit of life; and new cells arise from existing cells.
Detailed explanation-2: -The Core Principles of Physiology The cell theory states that all biological organisms are composed of cells; cells are the unit of life and all life come from preexisting life.
Detailed explanation-3: -The cell theory was proposed by two scientists-Schleiden (1838)and Schwann (1839). It says that all the plants and animals are composed of cells and the cell is the basic unit of life. The cell theory was further expanded by Virchow (1855) by suggesting that all cells arise from pre-existing cells.
Detailed explanation-4: -The cell theory incorporates three principles: Cells are the most basic building units of life. All living things are composed of cells. New cells are made from preexisting cells, which divide into two.
Detailed explanation-5: -The cell theory states that cells form the building blocks of life. It introduces the properties of cell. It was proposed by Matthias Schleiden and Theodor Schwann.