CELL THEORY

Question 1

Cell theory is also known as ?

Answer 1

CELL DOCTRINE

Question 2

Who proposed the cell theory ?

Answer 2

SCHLEIDEN AND SHAWANN

Question 3

Who was Matthias Schleiden and what was his contribution to the cell theory ?

Answer 3

1. He was the German botanist.

2. he proposed that all plants are made up of cells .

Question 4

Who was Theodore Shawann and what was his contribution to the cell theory ?

Answer 4

1. He was the British zoologist .
2. He propose that
   
   • All animals are made up of cells.
   • Outermost covering of animal cell is plasma membrane.
   • Outermost covering in plant cell is cell wall which is the unique feature of plants .

Question 5

What was the drawback of this cell theory ?

Answer 5

They didn’t explained that how cells ae formed ?

Question 6

Who clarify the drawback of the cell theory ?

Answer 6

RUDOLF VIRCHOW in 1855 .

Question 7

What did Rudolf Virchow proposed ?

Answer 7

Rudolf Virchow proposed “Omins cellula-e-cellula”

Question 8

What is “Omins cellula-e-cellula” ?

Answer 8

It means new cells arises from the pre existing cell through cell division .

Question 9

Give the three postulates of the modified cell theory ?

Answer 9

1. All living organism are made up of cell and the product of cell.
2. New cells arises from the pre existing cell through cell division.
3. The activity of an organism is the outcome of sum total of activities and interactions among its constituent cell.

Question 10

Who are the exception to cell theory ?

Answer 10

VIRUS (Because they contain only nucleoprotein particles in them)