contain digestive enzymes found: animal cells jobs: 1) autolysis: destroy dying cell
DESCRIPTION
Lysosome. Contain digestive enzymes Found: Animal cells Jobs: 1) Autolysis: Destroy dying cell. This lysosome is destroying a mitochondrion. Lysosome. protein. Contain digestive enzymes Found: Animal cells Jobs: 1) Autolysis: Destroy dying cell 2) Break down food. cell. i. n. t. e. - PowerPoint PPT PresentationTRANSCRIPT
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• Contain digestive enzymes
• Found: Animal cells• Jobs:1) Autolysis: Destroy
dying cell
This lysosome is destroying a mitochondrion
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• Contain digestive enzymes
• Found: Animal cells• Jobs:1) Autolysis: Destroy
dying cell2) Break down food
cell
p r o t e in
protein
Lysosome(with enzymes inside)
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• Contain digestive enzymes
• Found: Animal cells• Jobs:1) Autolysis: Destroy
dying cell2) Break down food3) Kill bacteria
white blood cell
Lysosome(with enzymes inside)
bacteria
bacteria
white blood cell
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There are thousands of cilia surrounding this one cell. Lets zoom in for a closer look.
You can now see the individual cilia
• Job: movement
• Cilia = short hair-like extensions (numerous)
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This cell has 3 flagella
• Job: movement
• Cilia = short hair-like extensions (numerous)
• Flagella = long whip-like extension (very few)
1 2
3
cell
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This cell has 8 flagella
• Job: movement
• Cilia = short hair-like extensions (numerous)
• Flagella = long whip-like extension (very few)
1 2
3
4
5
67
8
cell
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Cell membrane
• Outermost layer of plant, fungi, & bacteria cells
• Job: Adds support for growth
• Made of tough cellulose– Hard to digest
• Witnessed by Robert Hooke in 1665
The cell wall is all that remains in cork
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• Job: Perform photosynthesis
• Chlorophyll molecules absorb sunlight & convert water and CO2 into sugars
• Endosymbiosis theory: (within, close, living relationship)
Were once free living organisms that became parts of modern cells
• Evidence:– Own DNA and ribosomes– Make proteins– Replicate chloroplast
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• Job: Perform photosynthesis
• Chlorophyll molecules absorb sunlight & convert water and CO2 into sugars
• Endosymbiosis theory: (within, close, living relationship)
Were once free living organisms that became parts of modern cells
• Evidence:– Own DNA and ribosomes– Make proteins– Replicate
Look for them flowing in the cytoplasm during our lab activity!
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A large predator cell devours the chloroplast ancestor
Chloroplast ancestor
Chloroplast survives and dividesThe predator cell divides,
splitting apart the chloroplasts
The chloroplasts continue to divide and multiply
The predator cells continue to divide, splitting apart the chloroplastsOver time, the chloroplast and larger cell become dependent on one another
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• Job: Stores food, water, waste, color pigments • Plant cells: Large central vacuole• Animal cells: Scattered smaller vacuoles
AB
C
nucleus vacuole
chloroplast
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Review1) Pick an organelle…any organelle. Describe its function.2) Name 7 organelles that can be found within the cytoplasm.3) Describe the pathway that proteins travel from creation to
exportation.4) List various reasons to help support the theory of
endosymbiosis.5) Name two organelles that plant cells have and animal cells
do not.6) Which organelle creates ATP energy for cells?7) Which organelle converts sunlight into sugar?8) Which organelle creates ribosomes?9) Which organelle fuses with the cell membrane to release
proteins?10)Which molecule holds the information to make a protein?
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Review Continued…11) Identify the organelles in the figure below