CHAPTER 1
CELL ITS STRUCTURE AND FUNCTIONS
SCIENTISTS & DISCOVERIES
Cell theory
Matthias Schleiden and Theodor Schwann in HS
Cell
Robert Hooke
Cell theory
Rudolf Von Virchow (1855)
Robert Brown (1831)
- Golgi complex
Camillo Golgi (1898)
KEY CONCEPTS
- Nucleus
- All living organisms are made up of cells.
Cell is the smallest structural and functional unit of any organism
-> Cell was discovered by a scientist Robert Hooke. Cell theory was put forward by Schleid
and Schwann
Cells vary in size, shape and number depending on the function they perform
Some cells are visible to the naked eye while many are invisible. They can be seen with
help of a microscope.
Organisms that have a single cell are called unicellular organisms and those that
numerous cells are called multi cellular organisms
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robert hook discovered cell
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Cells are the basic building blocks of all living things. The human body is composed of trillions of cells. They provide structure for the body, take in nutrients from food, convert those nutrients into energy, and carry out specialized functions. ... Cells have many parts, each with a different function.
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