Organelles

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Organelles the tiny, weeny organs of
cells continued
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Vacuole Membrane bound sac containing fluid,
sugars and ions
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Vacuole Membrane bound sac containing fluid,
sugars and ions Plants
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Vacuole Membrane bound sac containing fluid,
sugars and ions Plants One large vacuole
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Vacuole Membrane bound sac containing fluid,
sugars and ions Plants One large
vacuole Important in cell turgor
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Vacuole Membrane bound sac containing fluid,
sugars and ions Plants One large
vacuole Important in cell turgor Animals
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Vacuole Membrane bound sac containing fluid,
sugars and ions Plants One large
vacuole Important in cell turgor Animals Cells
can have one to many small vacuoles
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Vacuole Membrane bound sac containing fluid,
sugars and ions Plants One large
vacuole Important in cell turgor Animals Cells
can have one to many small vacuoles Storage of
sugars, ions and other materials
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Chloroplast The site of photosynthesis
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Chloroplast The site of photosynthesis
6CO2 6H2O ? C6H12O6 6O2
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Plant cell anatomy
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Plant cell anatomy
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Chloroplast The site of photosynthesis A
chloroplast consists of two membranes an outer
and an inner
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Chloroplast The site of photosynthesis A
chloroplast consists of two membranes an outer
and an inner Inside the inner membrane are
stacked structures called granum
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Chloroplast The site of photosynthesis A
chloroplast consists of two membranes an outer
and an inner Inside the inner membrane are
stacked structures called granum The organelle
is filled with an enzyme-rich fluid called
stroma
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Chloroplast The site of photosynthesis A
chloroplast consists of two membranes an outer
and an inner Inside the inner membrane, are
stacked structures called granum The organelle
is filled with an enzyme-rich fluid called
stroma Granum are made of grana. These are a
thylakoid membrane that contain chlorophyll, the
chemical involved in photosynthesis
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Chloroplast The site of photosynthesis A
chloroplast consists of two membranes an outer
and an inner Inside the inner membrane, are
stacked structures called grana The organelle
is filled with an enzyme-rich fluid called
stroma Grana are made of granum. These are a
thylakoid membrane that contain chlorophyll, the
chemical involved in photosynthesis Grana are
embedded in a less dense membrane
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Centriole found only in animal cells A pair of
cylindrical structures located near the nucleus
in animal cells comprised of bundles of smaller
microtubules
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Centriole found only in animal cells A pair of
cylindrical structures located near the nucleus
in animal cells comprised of bundles of smaller
microtubules During cell division the spindle
forms between centrioles
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The following are not really organelles. They are
found outside the cell but assist in the
essential functioning
Flagella and Cilia
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• Flagella and Cilia
• Flagella long whip-like tail. One or several
  present
• Cilia small hair-like protrusions. Many of them.
  Beat in unison

Flagella
Cilia
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• Flagella and Cilia
• Flagella long whip-like tail. One or several
  present
• Cilia small hair-like protrusions. Many of them.
  Beat in unison
• These are extension (s) of the cell membrane

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• Flagella and Cilia
• Flagella long whip-like tail. One or several
  present
• Cilia small hair-like protrusions. Many of them.
  Beat in unison
• These are extension (s) of the cell membrane
• Consist of membrane material and microtubules

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• Flagella and Cilia
• Flagella long whip-like tail. One or several
  present
• Cilia small hair-like protrusions. Many of them.
  Beat in unison
• These are extension (s) of the cell membrane
• Consist of membrane material and microtubules
• Provide a means of moving either the cell or the
  fluid outside the cell

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• Flagella and Cilia
• Flagella long whip-like tail. One or several
  present
• Cilia small hair-like protrusions. Many of them.
  Beat in unison
• These are extension (s) of the cell membrane
• Consist of membrane material and microtubules
• Provide a means of moving either the cell or the
  fluid outside the cell
• Prokaryotic flagella lack the membrane material

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Unicellular Ciliate
Base of flagella Point of attachment with cell
membrane
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Evolution of the eukaryotic cell
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Cell Wall A plant cells exoskeleton
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Cell Wall A plant cells exoskeleton Walls
provide structural support for many types of
cells in many types of organisms
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Cell Wall A plant cells exoskeleton Walls
provide structural support for many types of
cells in many types of organisms Bacteria
Protein and Carbohydrates
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Cell Wall
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Cell Wall A plant cells exoskeleton Walls
provide structural support for many types of
cells in many types of organisms Bacteria
Protein and Carbohydrates Plants Carbohydrates
(Cellulose)
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Plant cell anatomy
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Cell Wall A plant cells exoskeleton Walls
provide structural support for many types of
cells in many types of organisms Bacteria
Protein and Carbohydrates Plants Carbohydrates
(Cellulose) Fungi Carbohydrates (Chitin)
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Cell Walls
Fungi Mycelium