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Cells: The Building Bricks of Life
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Robert Hooke Used a “microscope” / magnifying glass to look at cork From England Discovered what a cell was by looking at a piece of cork
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Anot Van Leeuwenhook Dutch inventor who created the microscope that we recognize today First person to discover a single celled protozoa Protozoa is like pond scum He also looked at blood cells
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Cell The smallest unit of life that can perform all life processes.
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Cell Theory All organisms are made of one or more cells
The cell is the basic unit of all living things All cells come from existing cells
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Types of Cells Prokaryotic Cells Bacteria Cells Plant Animal
Eukaryotic Cells Plant Animal Fungi
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Prokaryotic Cell Example: bacteria DOES NOT have a nucleus.
DOES NOT have organelles Comes in different shapes and sizes.
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Eukaryotic Cell Example: plant, animal, and fungi HAS a nucleus
HAS organelles Is usually 10 times larger than Prokaryote cells.
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Cell Organelles Cell Parts are referred to as organelles.
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Cell Wall Most commonly found in plant cells & bacteria
Supports & protects cells Cell Wall
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Cell Membrane protective layer around all cells
allows food and oxygen into the cell and waste products out of the cell. Cell Wall Cell Membrane
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Cytoplasm Gel-like material Surrounded by cell membrane Cell Wall
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Nucleus contains instructions for everything cell does; includes DNA
Cell Wall Cell Membrane Cytoplasm Nucleus
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Ribosome Each cell contains thousands Make proteins
(Think of it like a battery plant!) Found on ER & floating throughout the cell Cell Wall Cell Membrane Cytoplasm Nucleus Ribosome
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Endoplasmic Reticulum (ER for Short)
Moves materials around in cell (Like a highway) Smooth type: lacks ribosomes Rough type : ribosomes embedded in surface Cell Wall Cell Membrane Cytoplasm Nucleus Ribosome ER
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Mitochondrion releases energy from food
(Energy Plant) Controls level of water and other materials in cell Cell Wall Cell Membrane Cytoplasm Nucleus Ribosome ER Mitochondrion
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Chloroplasts Found only in plant cells. Contains green chlorophyll
Where photosynthesis takes place Helps plant cells make food. Cell Wall Cell Membrane Cytoplasm Nucleus Ribosome ER Mitochondrion Chloroplasts
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Vacuole membrane-bound temporary storage spaces
Contains water solution Help plants maintain shape Cell Wall Cell Membrane Cytoplasm Nucleus Ribosome ER Mitochondrion Chloroplasts Vacuoles
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Golgi Body Protein 'packaging plant' Move materials within the cell
Move materials out of the cell Cell Wall Cell Membrane Cytoplasm Nucleus Ribosome ER Mitochondrion Chloroplasts Vacuoles Golgi Body
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