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3.2 Cell Organelles 
KEY CONCEPT Eukaryotic cells share many similarities.
3.2 Cell Organelles 
Cells have an internal structure.
3.2 Cell Organelles 
Cells have an internal structure. 
• The cytoskeleton has many functions.
3.2 Cell Organelles 
Cells have an internal structure. 
• The cytoskeleton has many functions. 
– supports and shapes cell
3.2 Cell Organelles 
Cells have an internal structure. 
• The cytoskeleton has many functions. 
– supports and shapes cell 
– helps position and transport organelles
3.2 Cell Organelles 
Cells have an internal structure. 
• The cytoskeleton has many functions. 
– supports and shapes cell 
– helps position and transport organelles 
– provides strength
3.2 Cell Organelles 
Cells have an internal structure. 
• The cytoskeleton has many functions. 
– supports and shapes cell 
– helps position and transport organelles 
– provides strength 
– assists in cell division
3.2 Cell Organelles 
Cells have an internal structure. 
• The cytoskeleton has many functions. 
– supports and shapes cell 
– helps position and transport organelles 
– provides strength 
– assists in cell division 
– aids in cell movement
3.2 Cell Organelles 
Several organelles are involved in making and 
processing proteins.
3.2 Cell Organelles 
Several organelles are involved in making and 
processing proteins. 
• The nucleus stores genetic information.
3.2 Cell Organelles 
Several organelles are involved in making and 
processing proteins. 
• The nucleus stores genetic information. 
• Many processes occur in the endoplasmic reticulum.
3.2 Cell Organelles 
Several organelles are involved in making and 
processing proteins. 
• The nucleus stores genetic information. 
• Many processes occur in the endoplasmic reticulum. 
• There are two types of endoplasmic reticulum.
3.2 Cell Organelles 
Several organelles are involved in making and 
processing proteins. 
• The nucleus stores genetic information. 
• Many processes occur in the endoplasmic reticulum. 
• There are two types of endoplasmic reticulum. 
– rough endoplasmic 
reticulum
3.2 Cell Organelles 
Several organelles are involved in making and 
processing proteins. 
• The nucleus stores genetic information. 
• Many processes occur in the endoplasmic reticulum. 
• There are two types of endoplasmic reticulum. 
– rough endoplasmic 
reticulum 
– smooth endoplasmic 
reticulum
3.2 Cell Organelles 
Several organelles are involved in making and 
processing proteins. (continued)
3.2 Cell Organelles 
Several organelles are involved in making and 
processing proteins. (continued) 
• Ribosomes link amino acids to form proteins.
3.2 Cell Organelles 
Several organelles are involved in making and 
processing proteins. (continued) 
• Ribosomes link amino acids to form proteins. 
• Vesicles are membrane-bound sacs that hold materials.
3.2 Cell Organelles 
Other organelles have various functions.
3.2 Cell Organelles 
Other organelles have various functions. 
• Mitochondria supply energy to the cell.
3.2 Cell Organelles 
Other organelles have various functions. 
• Mitochondria supply energy to the cell. 
• Vacuoles are fluid-filled sacs that hold materials.
3.2 Cell Organelles 
Other organelles have various functions. 
• Mitochondria supply energy to the cell. 
• Vacuoles are fluid-filled sacs that hold materials. 
• Lysosomes contain enzymes to digest material.
3.2 Cell Organelles 
Other organelles have various functions. 
• Mitochondria supply energy to the cell. 
• Vacuoles are fluid-filled sacs that hold materials. 
• Lysosomes contain enzymes to digest material. 
• Centrioles are tubes found in the centrosomes.
3.2 Cell Organelles 
Other organelles have various functions. 
• Mitochondria supply energy to the cell. 
• Vacuoles are fluid-filled sacs that hold materials. 
• Lysosomes contain enzymes to digest material. 
• Centrioles are tubes found in the centrosomes. 
– Centrioles help divide 
DNA.
3.2 Cell Organelles 
Other organelles have various functions. 
• Mitochondria supply energy to the cell. 
• Vacuoles are fluid-filled sacs that hold materials. 
• Lysosomes contain enzymes to digest material. 
• Centrioles are tubes found in the centrosomes. 
– Centrioles help divide 
DNA. 
– Centrioles form cilia and 
flagella.
3.2 Cell Organelles 
Plant cells have cell walls and chloroplasts.
3.2 Cell Organelles 
Plant cells have cell walls and chloroplasts. 
• A cell wall provides rigid support.
3.2 Cell Organelles 
Plant cells have cell walls and chloroplasts. 
• A cell wall provides rigid support. 
• Chloroplasts convert solar energy to chemical energy.

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Bio ch03 2

  • 1. 3.2 Cell Organelles KEY CONCEPT Eukaryotic cells share many similarities.
  • 2. 3.2 Cell Organelles Cells have an internal structure.
  • 3. 3.2 Cell Organelles Cells have an internal structure. • The cytoskeleton has many functions.
  • 4. 3.2 Cell Organelles Cells have an internal structure. • The cytoskeleton has many functions. – supports and shapes cell
  • 5. 3.2 Cell Organelles Cells have an internal structure. • The cytoskeleton has many functions. – supports and shapes cell – helps position and transport organelles
  • 6. 3.2 Cell Organelles Cells have an internal structure. • The cytoskeleton has many functions. – supports and shapes cell – helps position and transport organelles – provides strength
  • 7. 3.2 Cell Organelles Cells have an internal structure. • The cytoskeleton has many functions. – supports and shapes cell – helps position and transport organelles – provides strength – assists in cell division
  • 8. 3.2 Cell Organelles Cells have an internal structure. • The cytoskeleton has many functions. – supports and shapes cell – helps position and transport organelles – provides strength – assists in cell division – aids in cell movement
  • 9. 3.2 Cell Organelles Several organelles are involved in making and processing proteins.
  • 10. 3.2 Cell Organelles Several organelles are involved in making and processing proteins. • The nucleus stores genetic information.
  • 11. 3.2 Cell Organelles Several organelles are involved in making and processing proteins. • The nucleus stores genetic information. • Many processes occur in the endoplasmic reticulum.
  • 12. 3.2 Cell Organelles Several organelles are involved in making and processing proteins. • The nucleus stores genetic information. • Many processes occur in the endoplasmic reticulum. • There are two types of endoplasmic reticulum.
  • 13. 3.2 Cell Organelles Several organelles are involved in making and processing proteins. • The nucleus stores genetic information. • Many processes occur in the endoplasmic reticulum. • There are two types of endoplasmic reticulum. – rough endoplasmic reticulum
  • 14. 3.2 Cell Organelles Several organelles are involved in making and processing proteins. • The nucleus stores genetic information. • Many processes occur in the endoplasmic reticulum. • There are two types of endoplasmic reticulum. – rough endoplasmic reticulum – smooth endoplasmic reticulum
  • 15. 3.2 Cell Organelles Several organelles are involved in making and processing proteins. (continued)
  • 16. 3.2 Cell Organelles Several organelles are involved in making and processing proteins. (continued) • Ribosomes link amino acids to form proteins.
  • 17. 3.2 Cell Organelles Several organelles are involved in making and processing proteins. (continued) • Ribosomes link amino acids to form proteins. • Vesicles are membrane-bound sacs that hold materials.
  • 18. 3.2 Cell Organelles Other organelles have various functions.
  • 19. 3.2 Cell Organelles Other organelles have various functions. • Mitochondria supply energy to the cell.
  • 20. 3.2 Cell Organelles Other organelles have various functions. • Mitochondria supply energy to the cell. • Vacuoles are fluid-filled sacs that hold materials.
  • 21. 3.2 Cell Organelles Other organelles have various functions. • Mitochondria supply energy to the cell. • Vacuoles are fluid-filled sacs that hold materials. • Lysosomes contain enzymes to digest material.
  • 22. 3.2 Cell Organelles Other organelles have various functions. • Mitochondria supply energy to the cell. • Vacuoles are fluid-filled sacs that hold materials. • Lysosomes contain enzymes to digest material. • Centrioles are tubes found in the centrosomes.
  • 23. 3.2 Cell Organelles Other organelles have various functions. • Mitochondria supply energy to the cell. • Vacuoles are fluid-filled sacs that hold materials. • Lysosomes contain enzymes to digest material. • Centrioles are tubes found in the centrosomes. – Centrioles help divide DNA.
  • 24. 3.2 Cell Organelles Other organelles have various functions. • Mitochondria supply energy to the cell. • Vacuoles are fluid-filled sacs that hold materials. • Lysosomes contain enzymes to digest material. • Centrioles are tubes found in the centrosomes. – Centrioles help divide DNA. – Centrioles form cilia and flagella.
  • 25. 3.2 Cell Organelles Plant cells have cell walls and chloroplasts.
  • 26. 3.2 Cell Organelles Plant cells have cell walls and chloroplasts. • A cell wall provides rigid support.
  • 27. 3.2 Cell Organelles Plant cells have cell walls and chloroplasts. • A cell wall provides rigid support. • Chloroplasts convert solar energy to chemical energy.