Question

4: explain the discovery of cells in detail​

Answer 1

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. It was an important step in the movement away from spontaneous generation.

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Explanation:

Answer 2

✯ Account on Cell Discovery ✯

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• ➸ An English botanist Robot Hooks in 1655 examined the slices of a dried section of cork under a microscope.

• ➸ 1839, the German botanist Matthias Jacob Schleiden and the German psychologist Theodor Schwann, together proposed the cell theory.

✯ Postulate of cell theory ✯

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• ➸ All the living organisms are composed of cells. It is the basic structural and functional unit of life.

• ➸ All the cells are produced by the division of pre-existing cells. This phenomenon is called reproduction of cells

• ➸ The structure of all the living organisms is determined by the organisation of these small unit called cells.