CELL Flashcards
is the smallest working
unit of all living organisms on
our planet earth, which is
capable of performing life
functioning.
CELL
It can also be defined as a
fundamental unit of life.
CELL
states that “the bodies
of plants and animals are composed
of cells and their products and these
cells came from preexisting cells.
CELL THEORY
The year the term cell was first
observed and identified
1665
In 1665 -The term cell was first
observed and identified by an
English physicist
ROBERT HOOKE
In the year ____ a two German
scientist – Schwann and Schleiden
provided few basic principles of cell.
1839
In the year 1839 a two German
scientist – _________ &_________
provided few basic principles of cell.
Schwann and Schleiden
First to observe plant cells by
examining the section of the
cork.
ROBERT HOOKE
First observed the nucleus in
hairs and other cells of orchids
ROBERT BROWN
produced the first two-lenses
microscope
Hans and Zacharias Janssen
State that plants were composed of cells
Matthias Schleiden
State that animals were composed of cells
Theodor Schwann
First to observed DNA molecules
Watson and Crick
Developed the idea of generation continuity
of cell that Omnis cellula e cellula (i.e cells
are arise from pre-existing cells)
Division of cell
Rudolf Virchow
First to observe single-celled
organisms under the microscope.
Anthon Van Leeuwenhoek
He coined term “protoplasm”
Johannes Purkinje
“protoplasm”
which is the term for
nucleoplasm
and cytoplasm
is the living part of the
cell.
Protoplasm
The different types of cell include
prokaryotic cell, plant and animal
cell.
The size and the shape of the cell range from
millimeter to microns
The size and the shape of the cell range from millimeter to microns, which are generally based on the
type of function that it performs.
- A few cells are in
spherical, rod, flat,
concave, curved, rectangular, oval
and etc.
Every living organism is made up of a
single cell (unicellular) (or)
many cells (multicellular)
single cell
(unicellular
many cells
multicellular
all types of cells have certain
structures in common like:
genetic material and plasma
membrane.
