Cell
Organelles
• LS 2a – I will
understand cell
structure and
organelles
Cell Membrane
• Function:
– To keep all of the cells organelles inside.
– To allow things in and out of the cell.
• Found In: Plant and Animal Cells
Cytoplasm
• Function: To surround and
suspend all of the organelles within
a cell.
• Found In: Plant and Animal Cells
Ribosomes
• Function: It’s the protein factory
• Very small organelle
• Found In: Plant and Animal Cells
Nucleus
• Function: “The control center of the
cell.” It tells the cell what to do.
• Stores DNA which contains the
information the cell needs to make
proteins
• Found In: Plants and Animal Cells
Mitochondria
• Function: To break down food particles
in order to release energy (ATP).
• Known as the “MIGHTY
MITOCHONDRIA”
• Found In: Plant and Animal Cells
Endoplasmic
Reticulum
• Function: Is the delivery system of
the cell.
– Internal delivery
• Similar to a “tunnel for cars”
• Found In: Plants and Animal Cells
Golgi
Complex
• Function: Processes and
Transports Materials out of the cell.
– External Delivery
• Lipids and Proteins from the ER
are delivered to the Golgi.
• Found In: Plants and Animal Cells
Vacuole
• Function: To store water and other
materials.
• This “water balloon” helps to give the
cell its support.
• Found In: Plants – LARGE vacuoles
Animals – Small vacuoles
Cell Wall
• Function: To
provide strength
and support to
the cell
membrane.
• Found In: Plant
Cells Only
Chloroplast
• Function: -- Take energy from sunlight
and turn it into sugar
• (sugar is then passed to the
mitochondria to get energy – ATP)
• Found In: Plant Cells Only
The Cell Theory
1.All organisms are
composed of one or
more cells.
2.The cell is the basic unit
of life.
3.All cells come from
(1)
(2)
Control Center?
• No Nucleus
• Genetic Information (dna) is
“bunched up” in the cytoplasm
(3)
Organelles
• Organelles are not surrounded by any
membranes
• They do have RIBOSOMES though!
(4)
Genetic Information
• DNA is circular
• A long molecule, shaped like a rubber
band
(5)
Type of Cells?
• Bacteria!
(6)
(7)
Control Center
• Nucleus is in the center of the cell
• Controls all cell activities
• Easy to see!
(8)
Organelles
• Surrounded by membranes
• You can distinguish them from each
other
• Separate structures
(9)
Genetic Information
• DNA is linear
• It is stored in the nucleus
(10)
Type of Cells?
• Anything But Bacteria!
• Plants and animals!
staphylococcus