CHARACTERISTICS OF CELLS
Play
Mr. Javier Martelo
1. What is a Cell?
2. Why are most cells small?
3. The Cell Theory
index
4. What parts do all cells have in common?
5. Types of Cells
A. Prokaryotic Cells
B. Eukaryotic Cells
WHAT IS A CELL?
Like all living things, you are made of cells!!!
A CELL is the smallest functional and structural unit of all living organisms. An ORGANISM is any living thing. All organisms are made up of CELLS. Some organisms are just ONE CELL. Others, like humans, contain TRILLIONS OF CELLS.
INDEX
WHY ARE MOST CELL ARE SMALL?
Cells are small because their size is limited by their outer surface area.
The ratio of the cell's outer surface area to the cell's volume is called the SURFACE AREA-TO-VOLUME RATIO.
video
ViDEO
index
the cell theory
The cell is the basic unit of all organisms
All organisms are made up of one or more cells
All cells come from existing cells
The Cell Theory is fundamental to the study of organisms, medicine, heredity, evolution, and all other aspects of life science.
the cell theory
1665
1673
1838
1839
1858
Robert Hooke sees tiny, box-like spaces when using a Microscope to observe thin slices of cork. He call these spaces CELLS.
Anton van Leeuwenhoek made careful drawings of the organisms he observed.
Matthias Schleiden concluded that plants are made of CELLS.
Theodor Schwann determined that all animal tissues are made of CELLS. He concluded that all organisms are made up of one or more CELLS.
Rudolf Virchow proposed that cells could form only from the division of other cells.
index
index
home
TYPES OF CELLS
PROKARYOTIC (proh.KAIR.ee.oht)
EUKARYOTIC (yoo.KAIR.ee.oht)
Is a single-celled organism that does not have a nucleus or membrane-bounded-organelles. Its DNA is located in the Cytoplasm. Bacteria and Archaea are Prokaryotes (smaller that Eukaryotes).
Is an organism made up of cells that contain their DNA in a nucleus. Eukaryotic cells contain membrane-bounded organelles, as well as ribosomes. Most are multicellular but there are some unicellular organisms.
CHARACTERISTICS OF CELLS
Javier Martelo
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Transcript
CHARACTERISTICS OF CELLS
Play
Mr. Javier Martelo
1. What is a Cell?
2. Why are most cells small?
3. The Cell Theory
index
4. What parts do all cells have in common?
5. Types of Cells
A. Prokaryotic Cells
B. Eukaryotic Cells
WHAT IS A CELL?
Like all living things, you are made of cells!!!
A CELL is the smallest functional and structural unit of all living organisms. An ORGANISM is any living thing. All organisms are made up of CELLS. Some organisms are just ONE CELL. Others, like humans, contain TRILLIONS OF CELLS.
INDEX
WHY ARE MOST CELL ARE SMALL?
Cells are small because their size is limited by their outer surface area.
The ratio of the cell's outer surface area to the cell's volume is called the SURFACE AREA-TO-VOLUME RATIO.
video
ViDEO
index
the cell theory
The cell is the basic unit of all organisms
All organisms are made up of one or more cells
All cells come from existing cells
The Cell Theory is fundamental to the study of organisms, medicine, heredity, evolution, and all other aspects of life science.
the cell theory
1665
1673
1838
1839
1858
Robert Hooke sees tiny, box-like spaces when using a Microscope to observe thin slices of cork. He call these spaces CELLS.
Anton van Leeuwenhoek made careful drawings of the organisms he observed.
Matthias Schleiden concluded that plants are made of CELLS.
Theodor Schwann determined that all animal tissues are made of CELLS. He concluded that all organisms are made up of one or more CELLS.
Rudolf Virchow proposed that cells could form only from the division of other cells.
index
index
home
TYPES OF CELLS
PROKARYOTIC (proh.KAIR.ee.oht)
EUKARYOTIC (yoo.KAIR.ee.oht)
Is a single-celled organism that does not have a nucleus or membrane-bounded-organelles. Its DNA is located in the Cytoplasm. Bacteria and Archaea are Prokaryotes (smaller that Eukaryotes).
Is an organism made up of cells that contain their DNA in a nucleus. Eukaryotic cells contain membrane-bounded organelles, as well as ribosomes. Most are multicellular but there are some unicellular organisms.