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KEY CONCEPT Eukaryotic cells share many similarities.

This article explores the internal structure and functions of eukaryotic cells, including the role of the cytoskeleton, organelles involved in protein making and processing, and other important cellular components. It also highlights specific features of plant cells, such as cell walls and chloroplasts.

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KEY CONCEPT Eukaryotic cells share many similarities.

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  1. KEY CONCEPT Eukaryotic cells share many similarities.

  2. Cells have an internal structure.

  3. Cells have an internal structure. • The cytoskeleton has many functions.

  4. Cells have an internal structure. • The cytoskeleton has many functions. • supports and shapes cell

  5. Cells have an internal structure. • The cytoskeleton has many functions. • supports and shapes cell • helps position and transport organelles

  6. Cells have an internal structure. • The cytoskeleton has many functions. • supports and shapes cell • helps position and transport organelles • provides strength

  7. 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. 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. Several organelles are involved in making and processing proteins.

  10. Several organelles are involved in making and processing proteins. • The nucleus stores genetic information.

  11. Several organelles are involved in making and processing proteins. • The nucleus stores genetic information. • Many processes occur in the endoplasmic reticulum.

  12. 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. 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. 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. Several organelles are involved in making and processing proteins. (continued)

  16. Several organelles are involved in making and processing proteins. (continued) • Ribosomes link amino acids to form proteins.

  17. 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. Other organelles have various functions.

  19. Other organelles have various functions. • Mitochondria supply energy to the cell.

  20. Other organelles have various functions. • Mitochondria supply energy to the cell.

  21. 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. 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. 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. 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. Plant cells have cell walls and chloroplasts and large Central Vacoule.

  26. A cell wall provides rigid support. • Vacuoles are fluid-filled sacs that hold materials.

  27. Plant cells have cell walls and chloroplasts. • A cell wall provides rigid support. • Chloroplasts convert solar energy to chemical energy.

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