chapter 4 cytoskeleton. you must know the structure and function of the cytoskeleton. organelles...
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You Must Know
• The structure and function of the cytoskeleton.
• Organelles found only in plant cells or only in animal cells. (Page 72-73)
Concept 4.6: The cytoskeleton is a network of fibers that organizes structures and activities in the cell
• The cytoskeleton is a network of fibers extending throughout the cytoplasm.
• It organizes the cell’s structures and activities, anchoring many organelles.
© 2014 Pearson Education, Inc.
Figure 4.21
Receptor formotor protein
Vesicle
Motor protein(ATP powered)
ATP
Microtubuleof cytoskeleton
(a) Motor proteins “walk” vesicles along cytoskeletalfibers.
Roles of the Cytoskeleton: Support and Motility
Microtubule
Centrioles
Centrosome
Centrosomes and Centrioles – animal cells
Cilia and Flagella
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