Write the contribution of the following scientist in the study of the cell:
ØRobert hooke
ØPurkinje
ØLeeuwenhoek
ØRobert brown
ØSchleiden and schwann
Answers
A) Robert Hooke:-
He coined the term cell in the 1960s and discovered it in cork in 1665.
Discovered the law of elasticity known as Hook's law.
B)Leeuwenhoek
In 1976 he discovered first living cell bacteria and named it animalcules.
He is also known for the discovery of RBC, sperm and protozoa.
C)Robert Brown
He discovered the nucleus of a cell in 1931.
He is best known for his discovery of the random movement of the microscopic particle in the surrounding solution known as brownian movement.
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Answer:
1. Robert Hooke
He coined the term cell in the 1960s and discovered it in cork in 1665.
Discovered the law of elasticity known as Hook's law.
2. Purkinje
He described the nucleus of the egg cell.
3. Leeuwenhoek
In 1976 he discovered first living cell bacteria and named it animalcules.
He is also known for the discovery of RBC, sperm and protozoa.
4. Robert Brown
He discovered the nucleus of a cell in 1931.
5. Schleiden and schwann
Schleiden defined the cell as the basic unit of plant structure, and a year later Schwann defined the cell as the basic unit of animal structure.
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