Discovery Of Cells And Cell Theory

Question 1

1595

Answer 1

Jansen invented the compound microscope with two lenses

Question 2

1665

Answer 2

Robert Hooke used an improved compound microscope to examine cork from the bark of the tree

Question 3

1650-1700

Answer 3

Nuclei and unicellular organisms were observed by Anton van Leeuwenhoek

Question 4

1839

Answer 4

Cell theory was proposed by Schleiden and Schwann

Question 5

1880s

Answer 5

Chloroplasts and mitochondria were discovered

Question 6

1930s

Answer 6

Electron microscopes were invented

Question 7

What is the cell theory

Answer 7

One of the most important concepts in biology is that the basic unit of structure and function in living organisms is the cell. This is known as the cell theory

Question 8

What does the cell theory state

Answer 8

The cell theory states that:

All organisms are composed of one or more cells, and the life processes of metabolism and heredity occur within these cells.

Cells are the smallest living things, the basic units of all organisms,

Cells arise only by division of a previously existing cell.