chapter 7 cell structure and function
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Chapter 7 Cell Structure and Function. Section 7.1- Life is Cellular Section 7.2- Eukaryotic Cell Structure Section 7.3- Cell Boundaries Section 7.4- Diversity of Cellular Life. Section 7.2- Eukaryotic Cell Structure. Basic Parts of a Cell. - PowerPoint PPT PresentationTRANSCRIPT
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Chapter 7Cell Structure and Function
Section 7.1- Life is CellularSection 7.2- Eukaryotic Cell StructureSection 7.3- Cell BoundariesSection 7.4- Diversity of Cellular Life
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Section 7.2- Eukaryotic Cell Structure
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Basic Parts of a Cell
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Comparing Cells
• There are some differences between plant and animal cells
• There are some similarities
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Nucleus• “The Brain”• DNA, surrounded by nuclear envelope, nucleolus-
where ribosomes are made
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Ribosomes
• “The Construction Company”
• Builds proteins• Free floating in the
cytoplasm or attached to the ER
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Endoplasmic Reticulum• “The Highway” (tubes and sacs)• Rough– Produces phospholipids and proteins
• Smooth– Produces cholesterols
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Golgi Apparatus• “The Post Office”– Receives proteins from ER– Modifies, labels and directs proteins to locations
in the cell
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Lysosomes• Specialized organelles– Lysosome- “The Killer or Garbage Truck”• Breaks down molecules• Maintains cell’s health by getting rid of non-functioning
parts
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Vacuole• Specialized organelles– Vacuole- “The Storage Center”• Stores water, nutrients and waste
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Mitochondria• “The Power House”• Where ATP is produced
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Chloroplast• Use light energy to
make C6H12O6 and O2
– Thylakoids• Flattened
membranous sacs that contain chlorophyll
– Chlorophyll• Pigment that
absorbs light and captures light energy for the cell
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Cytoskeleton• “The Infrastructure”– Cell support– Microtubule• Hold organelles in
place– Microfilaments• Cell movement
– Intermediate Filaments• Maintain internal
shape of cell