Robert Hooke used the term cell in the year

Which is the largest cell in the animal kingdom?

The cell theory states that,.........

Which scientist observed and described living cells for the first time?

Assertion: Organisms are made up of cells.
Reason: Cells are the structural unit of living organisms. $A$ cell keeps its chemical composition steady within its boundary.

The properties of organelles are not present in the molecular constituents of the organelle but arise as a result of: