3. Aristotle ‘s contribution in biology
Robert Hooke: as Discoverer of Cell ( in1665)
Leuwan Hook: as Discoverer of living cell ( in 1682)
Robert Brown: as Disoverer of cell ‘s Nucleus( in
1823)
Mathias Schleiden & Theoder Schwann
Proposed cell theory ( in1838/39)
Dujardin & Purkinje observed cytoplasm in 1835
Karil Biar studied the ovum cells of mammalian
Prepared By: Aamir Khan Pameer 3