This document provides an overview of cells including:
- A brief history of cell discovery from Hooke's first observation of cells in cork in 1665 to Virchow observing cell division in 1855.
- The three statements that make up Cell Theory: all living things are made of cells, new cells are produced from existing cells, and cells are the basic unit of life.
- An introduction to specialized cell types and tissues in multicellular organisms including stem cell differentiation.
- An agenda for an introductory lecture on cells covering guided notes, videos, and assignments.
Early Discoveries of Cells thru TimelineKiel Lorrence
Early Discoveries of Cells thru Timeline
presented by Teacher Kiel Lorrence Garcia
Note the following information and perform the necessary tasks such as reading assigns and homework activity that are due next week September 4 to 9, 2011
Early Discoveries of Cells thru TimelineKiel Lorrence
Early Discoveries of Cells thru Timeline
presented by Teacher Kiel Lorrence Garcia
Note the following information and perform the necessary tasks such as reading assigns and homework activity that are due next week September 4 to 9, 2011
By: Marina Járboles, Cristina Alierta and Pilar Ballesteros.
CELL
Cell Theory
Cell scientists
1) Robert Hooke
2) Antony Van Leeuwenhoek
3) Robert Brown
4) Mattias Schleiden
5) Theodor Schwann
6) Rudolph Virchow
History of microscopes
Types of microscopes
Optical and electron microscopes.
This is about the history of cells. Furthermore, this includes the people behind the discovery of cells. Enjoy and have fun. This is made for the fourth grader class of Bethel International School, Pawing, Palo, Leyte, Philippines.
Godbless.
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
By: Marina Járboles, Cristina Alierta and Pilar Ballesteros.
CELL
Cell Theory
Cell scientists
1) Robert Hooke
2) Antony Van Leeuwenhoek
3) Robert Brown
4) Mattias Schleiden
5) Theodor Schwann
6) Rudolph Virchow
History of microscopes
Types of microscopes
Optical and electron microscopes.
This is about the history of cells. Furthermore, this includes the people behind the discovery of cells. Enjoy and have fun. This is made for the fourth grader class of Bethel International School, Pawing, Palo, Leyte, Philippines.
Godbless.
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
in this ppt, i had discuss about cell,its structure,function.types of cells, plant and animal cell.and difrrence between plant and animal cell / prokaryotic and eukaryotic cell.
This presentation you will get how the cell theory developed.
Robert Hooke observed cells in cork and coined the term "cells”.
Anton Van Leeuwenhoek observed first living cells under the simple microscope.
Matthias Schleiden (1838) German lawyer turned botanist, concluded that, despite differences in the structure of various tissues, plants were made of cells and that the plant embryo arose from a single cell.
In 1839, Theodor Schwann, a German zoologist and colleague of Schleiden’s, published a comprehensive report on the cellular basis of animal life. Schwann concluded that the cells of plants and animals are similar structures.
By 1855, Rudolf Virchow, a German pathologist concluded that
“Omnis cellula e cellula”- new cells are formed only from pre-existing cells.
All organisms are composed of one or more cells.
2) The cell is the structural unit of life.
3) Cells can arise only by division from a pre-existing cell
In biology, cell theory is a scientific theory first formulated in the mid-nineteenth century, that living organisms are made up of cells, that they are the basic structural/organizational unit of all organisms, and that all cells come from pre-existing cells.
4. The Inner Life of the Cell
This video is a high quality visualization of
life inside of a single-white blood cell.
5. History of Cells: First Sighting
In 1665, Robert Hooke
used a microscope to
examine a thin slice of
cork
What he saw looked like
small boxes
Hooke called them
“CELLS” because they
looked like small rooms
7. History of Cells: First Living Cells
In 1673, AntonVon
Leeuwenhoek (a Dutch
microscope maker), was
first to view living cells
Leeuwenhoek used a
simple, handheld
microscope to view tiny
creatures in pond water
& scrapings from his
teeth
9. History of Cells: Plants & Animals
In 1838, a German botanist
named Matthias Schleiden
concluded that all plants
were made of cells
In 1839, a German zoologist
namedTheodore Schwann
concluded that all animals
were made of cells
11. History of Cells: Cell Division
In 1855, a German medical
doctor named Rudolph
Virchow used a microscope
to observe cells dividing
He reasoned that all cells
must come from other pre-
existing cells by cell division
13. CellTheory
The CellTheory summarized all scientific knowledge
about cells into 3 statements.
1) All living things are made of cells.
2) New cells are created by old cells dividing into two.
3) Cells are the basic building units of life.
14. Unicellular & Multicellular Life
Unicellular Life – Composed
of one cell. These are small
things like bacteria.
Multicellular Life- Composed
of many cells. All plants &
animals are multicellular.
15. Cell Specialization
In multicellular organisms, cells
within the body are designed for
different jobs.
Cells begin as an unspecialized
type called Stem Cells
These stem cells can transform
into more specialized types
when they are exposed to
chemical signals