Cells: The Basic Units of Life

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Cells The Basic Units of Life

• By Mr. Hunter

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Elodea
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Microscope
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Microscope
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Robert Hooke

• Invented the microscope
• Viewed cork under the microscope assigned the
  name cells to the little rooms he saw
• Thought animals were not made of cells

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Anton van Leeuwenhoek

• made microscopes
• Looked at pond scum
• Saw protists

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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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Cells

• Surface area to volume ratio

Cell Part Drawing Description
Membrane
Organelle
Nucleus
DNA
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Kinds of cellsCompare/contrast each of the
following.

• Prokaryotes
• Eukaryotes
• Archaebacteria
• Eubacteria

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Organelles

• Cell Part Drawing
  Description of function
• Ribosome
• ER
• Mitochondria
• Chloroplast
• Golgi Complex
• Vacuole
• Lysosome

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Draw and Trade

• Choose either a plant or animal cell. Draw it!
• DO NOT LABEL THE ORGANELLES!
• Include each of the following organelles in your
  cell drawing

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• Nucleus
• Cell wall or cell membrane
• Ribosomes
• Nucleolus
• Smooth ER
• Rough ER
• Cytoplasm
• Mitochondria
• Chloroplasts
• Golgi Complex
• Vesicles
• Lysosomes
• Vacuoles

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Cells

• Cell City Analogy
• In a far away city called Grant City, the main
  export and production product is the steel
  widget. Everyone in the town has something to do
  with steel widget making and the entire town is
  designed to build and export widgets. The town
  hall has the instructions for widget making,
  widgets come in all shapes and sizes and any
  citizen of Grant can get the instructions and
  begin making their own widgets. Widgets are
  generally produced in small shops around the
  city, these small shops can be built by the
  carpenter's union (whose headquarters are in town
  hall).
• After the widget is constructed, they are
  placed on special carts which can deliver the
  widget anywhere in the city. In order for a
  widget to be exported, the carts take the widget
  to the postal office, where the widgets are
  packaged and labeled for export. Sometimes
  widgets don't turn out right, and the "rejects"
  are sent to the scrap yard where they are broken
  down for parts or destroyed altogether. The town
  powers the widget shops and carts from a
  hydraulic dam that is in the city. The entire
  city is enclosed by a large wooden fence, only
  the postal trucks (and citizens with proper
  passports) are allowed outside the city.
•  

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A cell is like a school

• Nucleus
• Cell wall or cell membrane
• Ribosomes
• Nucleolus
• Smooth ER
• Rough ER
• Cytoplasm
• Mitochondria
• Chloroplasts
• Golgi Complex
• Vesicles
• Lysosomes
• Vacuoles

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Cell BINGO!

• Nucleus
• Cell wall or cell membrane
• Ribosomes
• Nucleolus
• Smooth ER
• Rough ER
• Cytoplasm
• Mitochondria
• Chloroplasts
• Golgi Complex
• Vesicles
• Lysosomes
• Vacuoles

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Why be multicellular?

• Larger size
• Longer life
• specialization

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Organization

1. The smallest, living unit is a _____ .
2. A _____ is a group of cells that work together to
   perform a specific function.
3. What are the different types of tissues?
4. An _____ is an example of tissues working
   together.
5. An ______ _____ is an example of organs working
   together to perform a specific function.
6. What are some examples of organ systems?

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Drawing Example Function
Cells
Tissues
Organs
Systems
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Structure/Function

• Anatomy Structure- What is it?
• Physiology Function- Why is it there? How does
  it function with other systems?