Question

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Define about cell theory.
(For 8 marks)

Answer 1

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$\huge\mathscr{Cell\:theory}$

Imagine what it must have felt like to be Robert Hooke when he first saw cork under a microscope. He noticed small compartmentalized areas that reminded him of the small rooms in a monastery. He named these areas 'cells'. We now know much more about these fundamental units of life because of the interest their discovery sparked. Further investigation led to the development of cell theory, or basic generalizations that are accepted by modern scientists about cells. Three main assumptions of cell theory were developed in the mid-1800s and remain a foundation of modern biology.

Answer 2

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Here is your answer:-

❇️ In biology, cell theory is the historic scientific theory, now universally accepted, that living organisms are made up of cells, that they are the basic structural/organizational unit of all organisms, and that all cells come from pre-existing cells. Cells are the basic unit of structure in all organisms and also the basic unit of reproduction. With continual improvements made to microscopes over time, magnification technology advanced enough to discover cells in the 17th century. This discovery is largely attributed to Robert Hooke, and began the scientific study of cells, also known as cell biology. Over a century later, many debates about cells began amongst scientists. Most of these debates involved the nature of cellular regeneration, and the idea of cells as a fundamental unit of life. Cell theory was eventually formulated in 1839. This is usually credited to Matthias Schleiden and Theodor Schwann. However, many other scientists like Rudolf Virchow contributed to the theory.

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