Download - Kim Fogler's Cell Organelles
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2008-2009 AP Biology
Cells & Cell Organelles
The Building Blocksof Life
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Regents Biology
bacteriacells
bacteriacellsTypes of cells
animal cellsanimal cells plant cellsplant cells
Prokaryote- no organelles
Eukaryotes- organelles
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Regents Biology
Cell size comparison
Bacterial cell
Animal cell
micron = micrometer = 1/1,000,000 meter diameter of human hair = ~20 microns
most bacteria 1-10 microns
eukaryotic cells 10-100 microns
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Regents Biology
Why study cells? Cells Tissues Organs Bodies
bodies are made up of cells cells do all the work of life!
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Regents Biology
What jobs do cells have to do for an organism to live… “breathe”
gas exchange: CO2 vs. O2
eat take in & digest food
make energy ATP
build molecules proteins, carbohydrates, fats, nucleic acids
remove wastes control internal conditions respond to external environment build more cells
growth, repair, reproduction & development
The Work of Life
ATP
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Regents Biology
Organelles Organelles do the work of cells
each structure has a job to do keeps the cell alive; keeps you alive
Model Animal Cell
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Regents Biology
Cells need power! Making energy
to fuel daily life & growth, the cell must… take in food & digest it take in oxygen (O2)
make ATP remove waste
organelles that do this work… cell membrane lysosomes vacuoles & vesicles mitochondria
ATP
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Regents Biology
Cell membrane Function
separates cell from outside controls what enters or leaves cell
O2,CO2, food, H2O, nutrients, waste recognizes signals from other cells
allows communication between cells
Structure double layer of fat
phospholipid bilayer receptor molecules
proteins
lipid “tail”
phosphate“head”
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Regents Biology
cell membranecell boundarycontrols movementof materials in & out
recognizes signals
cytoplasmjelly-like material holding organelles in place
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Regents Biology
Vacuoles & vesicles Function
moving material around cell
storage Structure
membrane sacsmall food
particle
vacuole
digesting food inside cell
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Regents Biology
Food & water storage
plant cellsplant cells
contractilevacuole
contractilevacuole
animal cellsanimal cells
central vacuole central vacuole
food vacuoles food vacuoles
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Regents Biology
cell membranecell boundarycontrols movementof materials in & out
recognizes signals
cytoplasmjelly-like material holding organelles in place
vacuole & vesiclestransport inside cellsstorage
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Regents Biology
Lysosomes
small foodparticle
vacuole
digesting food
lysosomes
Function digest food clean up & recycle
digest broken organelles
Structure membrane sac of
digestive enzymes
digesting brokenorganelles
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Regents Biology
lysosomefood digestiongarbage disposal &recycling
cell membranecell boundarycontrols movementof materials in & out
recognizes signals
cytoplasmjelly-like material holding organelles in place
vacuole & vesiclestransport inside cellsstorage
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Regents Biology
Function make ATP energy from cellular respiration
sugar + O2 ATP fuels the work of life
Structure double membrane
Mitochondria
in both animal & plant cellsin both animal & plant cells
ATP
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Regents Biology
lysosomefood digestiongarbage disposal &recycling
cell membranecell boundarycontrols movementof materials in & out
recognizes signals
cytoplasmjelly-like material holding organelles in place
vacuole & vesiclestransport inside cellsstorage
mitochondriamake ATP energy from sugar + O2
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Regents Biology
Mitochondria make energy from sugar + O2
cellular respiration sugar + O2 ATP
Chloroplasts make energy + sugar from sunlight
photosynthesis
sunlight + CO2 ATP & sugar ATP = active energy sugar = stored energy
build leaves & roots & fruit out of the sugars
Plants make energy two ways!
ATP
sugar
ATP
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Regents Biology
Mitochondria are in both cells!!
animal cellsanimal cells plant cellsplant cells
mitochondriamitochondriachloroplastchloroplast
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Regents Biology
central vacuolestorage: food, water or waste
mitochondriamake ATP in cellular respiration
chloroplastmake ATP & sugars in photosynthesis
cell wallsupport
cell membranecell boundarycontrols movementof materials in & out
recognizes signalslysosomedigestion & clean up
cytoplasm
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Regents Biology
Cells need workers (proteins)! Making proteins
to run daily life & growth, the cell must… read genes (DNA) build proteins
structural proteins (muscle fibers, hair, skin, claws) enzymes (speed up chemical reactions) signals (hormones) & receptors
organelles that do this work… nucleus ribosomes endoplasmic reticulum (ER) Golgi apparatus
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Regents Biology
Proteins do all the work!
cellsDNA proteins
one of the major job of cells is to make proteins,because…
one of the major job of cells is to make proteins,because…
proteins do all the work!proteins do all the work!
signals
structure
enzymes
receptors
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Regents Biology
Nucleus Function
control center of cell protects DNA
instructions for building proteins
Structure nuclear membrane nucleolus
ribosome factory chromosomes
DNA
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Regents Biology
lysosomefood digestiongarbage disposal &recycling
cell membranecell boundarycontrols movementof materials in & out
recognizes signals
cytoplasmjelly-like material holding organelles in place
vacuole & vesiclestransport inside cellsstorage
mitochondriamake ATP energy from sugar + O2
nucleusprotects DNAcontrols cell
chromosomesDNA
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Regents Biology
Ribosomes on ER
Ribosomes Function
protein factories read instructions to build proteins from DNA
Structure 2 subunits some free in cytoplasm some attached to ER
largesubunit
smallsubunit
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Regents Biology
lysosomefood digestiongarbage disposal &recycling
cell membranecell boundarycontrols movementof materials in & out
recognizes signals
cytoplasmjelly-like material holding organelles in place
vacuole & vesiclestransport inside cellsstorage
mitochondriamake ATP energy from sugar + O2
nucleusprotects DNAcontrols cell
ribosomesbuilds proteins
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Regents Biology
Endoplasmic Reticulum Function
part of protein factory helps complete the
proteins makes membranes
Structure rough ER
ribosomes attached works on proteins
smooth ER makes membranes
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Regents Biology
lysosomefood digestiongarbage disposal &recycling
cell membranecell boundarycontrols movementof materials in & out
recognizes signals
cytoplasmjelly-like material holding organelles in place
vacuole & vesiclestransport inside cellsstorage
mitochondriamake ATP energy from sugar + O2
nucleusprotects DNAcontrols cell
ribosomesbuilds proteins
ERhelps finish proteinsmakes membranes
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Regents Biology transport vesicles
vesiclescarrying proteins
Function finishes, sorts, labels & ships proteins
like UPS headquarters shipping & receiving department
ships proteins in vesicles “UPS trucks”
Structure membrane sacs
Golgi Apparatus
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Regents Biology
cell membranecell boundarycontrols movementof materials in & out
recognizes signals
cytoplasmjelly-like material holding organelles in place
vacuole & vesiclestransport inside cellsstorage
mitochondriamake ATP energy from sugar + O2
nucleusprotects DNAcontrols cell
ribosomesbuilds proteins
ERhelps finish proteinsmakes membranes
Golgi apparatusfinishes, packages & ships proteins
lysosomefood digestiongarbage disposal &recycling
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Regents Biology
DNA
RNA
ribosomes
endoplasmicreticulum
vesicle
Golgi apparatus
vesicle
proteinon its way!
protein finishedprotein
Making Proteins
TO:
TO:
TO:
TO:
nucleus
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Regents Biology
central vacuolestorage: food, water or waste
mitochondriamake ATP in cellular respiration
chloroplastmake ATP & sugars in photosynthesis
cell wallsupport
cell membranecell boundarycontrols movementof materials in & out
recognizes signals
Golgi apparatusfinish & ship proteins
nucleuscontrol cellprotects DNA
endoplasmic reticulumprocesses proteinsmakes membranes
lysosomedigestion & clean up
cytoplasm
ribosomesmake proteins
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Regents Biology
Cells need to make more cells! Making more cells
to replace, repair & grow, the cell must… copy their DNA make extra organelles
divide the new DNA & new organelles between 2 new “daughter” cells
organelles that do this work… nucleus centrioles
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Regents Biology
Centrioles Function
help coordinate cell division Structure
one pair in each cell “motor” proteins
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Regents Biology
cell membranecell boundarycontrols movementof materials in & out
recognizes signals
cytoplasmjelly-like material holding organelles in place
mitochondriamake ATP energy
from sugar + O2
nucleusprotects DNAcontrols cell
ribosomesbuilds proteins
ERhelps finish proteinsmakes membranes
Golgi apparatusfinishes, packages & ships proteins
lysosomefood digestiongarbage disposal &recyclingvacuole & vesicles
transport inside cellsstorage
centriolescell division
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Regents Biology
Cells have 3 main jobs make energy
need food + O2
cellular respiration & photosynthesis need to remove wastes
make proteins need instructions from DNA need to chain together amino acids & “finish”
& “ship” the protein make more cells
need to copy DNA & divide it up
Cell Summary
Our organellesdo all those
jobs!
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2008-2009 AP Biology
That’s mycellular story…
Any Questions?