5. Cell Components
Introduction to the Cytoskeleton
5. Cell Components
Introduction to the Cytoskeleton
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- Multiple Choice
What component of the cytoskeletons do motor proteins use to transport vesicles?
- Multiple Choice
In human cells, ___________________ are used to move a cell within its environment while ___________________ are used to move objects in the environment relative to the cell.
- Multiple ChoiceMicrotubules and microfilaments commonly work with which of the following to perform many of their functions?
- Multiple ChoiceWhich statement about the cytoskeleton is true?
- Open QuestionHow does the hydrolysis of ATP result in the movement of a motor protein along a cytoskeletal filament?
- Open QuestionDescribe two different ways in which cilia can function in organisms.
- Open QuestionThe eukaryotic cytoskeleton is a highly dynamic network of filaments and motor proteins. Which of the following correctly describe activities of these cytoskeletal components? Select True or False for each statement.T/FMyosin motors walk toward the plus ends of intermediate filaments.T/FDynein motors are responsible for the whip-like movement of eukaryotic flagella.T/FKinesin motors move vesicles along tracks toward the microtubule-organizing center.T/FActin filaments are required for cytoplasmic streaming.
- Open QuestionGeorge Palade's research group used the pulse–chase assay to elucidate the secretory pathway in pancreatic cells. If they had instead performed this assay on muscle cells, where would you expect the labeled proteins to end up during the chase? (Muscle cells consist primarily of actin and myosin filaments and have high energy demands for muscle contraction.)