Transcript Cell Parts (cont.)

Cell Anatomy
Super-Dooper Cell
Notes
Cell
 Basic
Unit of structure and
function of all living things
 All cells have little organs,
called Organelles, inside.
Cell Parts or Organelles
3.
Nucleus: “Control Center”
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Contains the genetic information “DNA”
Usually near the middle (center) of the cell
surrounded by a nuclear membrane
Nucleoli
: Place where ribosomes are made.
Parts of a Cell
1.
Cell (Plasma) Membrane--”gatekeeper”
 Lets some things in
and somethings out
Encloses the cell
(double layer of fat
and proteins)
Cell Membrane
See figure 3.2 page 58
Cell Parts (cont.)
2.
Cytoplasm: “Living stuff”
 All the chemical reactions take place here!
 Jello-like fluid that gives the cell shape
and holds the organelles (little organs).
Cell Parts (cont.)
7.
Mitochondria- “Powerhouse”
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Respiration center--sugar is burned to
create Energy!
Cell Parts (cont.)
4.
Ribosomes: “protein factories”
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Proteins are made here!!
Think spots or dots!
Cell Parts (cont.)
5.
Endoplasmic Reticulum (ER)-”Canal
System”
Rough ER: Circulatory system for carrying
things around the cell
 carries ribosomes that make
protein.
 Smooth ER-no ribosomes
 But makes cholesterol
and fats and detoxifies drug
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Cell Parts (cont.)
6.
Golgi Apparatus
stack of flattened sacs
 Traffic director for modifying and
packaging proteins to be sent around the
cells.
 It puts the address on the protein
Cell Parts (cont.)
8.
Lysosome - “Garbage disposal, suicide
sac”
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Contain digestive enzymes to break up
worn out cell parts and invaders like
bacteria
Sometimes digest really bad stuff and die
so the cell can live.
Look like waffles
Peroxisome
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Membrane sacs containing enzymes to
detoxify harmful substances and disarm
free radicals.
Destroys free radicals.
Cell Parts (cont.)
9.
Cytoskeleton- “Wonder bra”
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Gives cell support and shape
Helps cells to move
Cell Parts (cont.)
10.
Centrioles - “cellular churros”
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Helps cells to divide
Lie close to the nucleus
Cilia
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Whip substances along like mucus in the
respiratory system being whip up from the
lungs.
Cell projections like hairs
Flagella
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Longer than cilia. They move cells along
Example is the tail on the sperm
Microvilli
Finger-like projections that
increase the surface area of
the cell
Cell Parts (cont.)
11.
Vacuole- “Water Tower”
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Stores water
Look like bubbles