The Cell

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The Cell
Structures Functions
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Cells
Are the building blocks of all living things
(Legos of life) Are prokaryotic or eukaryotic
Prokaryotic cells have no nucleus to contain DNA
(blue green algae, bacteria)
Eukaryotic cells have a true nucleus to contain
DNA and organelles surrounded by membranes
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Organelles

• The parts that make up a cell are all called
  organelles
• Each organelle has a different job to do
• There are many organelles but we will be studying
  just five of them

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The Nucleus
Found in eukaryotic cells
The control center of the cell
Contains chromosomes, which are the genetic
blueprints of the cell Chromosomes are strands
of DNA and are sometimes called chromatin
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The Nucleus
DNA has the instructions to control everything
going on in the cell.
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Cell Membrane
The cell membrane surrounds the cell and allows
some things to go through it.
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Cell Membrane
It is called a semi-permeable membrane because it
only lets certain things through
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Mitochondria
Mitochondria are tiny sausage-shaped structures
found in the cytoplasm of the cell, and are
responsible for energy production
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Mitochondria
Cell Respiration happens in the
mitochondria. Cell Respiration is the process
that breaks down food into usable energy.
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Chloroplasts
Chloroplasts are found only in plant cells and a
few bacteria. This is where photosynthesis takes
place. Found only in plant cells.


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Chloroplasts
Photosynthesis is the process that turns sunlight
energy into sugar (food) for the plant.
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Cell Wall
Stiff, rigid, nonliving. Provides protection and
support so that the plant can grow tall.

Found only in plant cells.