Question

Who proposed cell theory?Write its postulates.​

Answer 1

Cell theory

- was proposed by : Schleiden in (1848) and Sachwann in (1839).

Postulates of cell theory:-

• All the plants and animals are composed of cells.

• The cell is the basic unit of life .

The cell theory was further expanded by Virchow in 1855 .

Postulate of virchow's expanded theory

• All cells arise from pre-existing cells.

●Hope it helps you

Answer 2

Answer:

In 1838, Matthias Schleiden and Theodor Schwann proposed a basic cell theory. In 1858, another scientist, Virchow made an addition to the existing cell theory. The postulates of modern cell theory are: (1) The cell is the smallest unit of structure of all living things.