Podcast
Questions and Answers
What is the primary component of myosin that allows it to function effectively in cell crawling?
What is the primary component of myosin that allows it to function effectively in cell crawling?
What function do intermediate filaments serve in a cell?
What function do intermediate filaments serve in a cell?
Which of the following motor molecules enables the separation of duplicate chromosomes during cell division?
Which of the following motor molecules enables the separation of duplicate chromosomes during cell division?
Which of the following statements about kinesin and dynein is true?
Which of the following statements about kinesin and dynein is true?
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What structural feature distinguishes myosin from intermediate filaments?
What structural feature distinguishes myosin from intermediate filaments?
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Study Notes
Motor Molecules
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Myosin: Crawls on microfilaments (composed of G-actin monomers). Functions include supporting/shaping the cell membrane, transporting cytoplasmic vesicles, cell crawling, and cell division (pinching the cell in two to form daughter cells).
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Kinesin and Dynein: Crawl on microtubules (composed of tubulin subunits). Functions include distributing organelles in the cytoplasm, moving large cell projections, and enabling separated chromosomes during cell division.
Intermediate Filaments
- Lack motor molecules.
- Typically made of keratin protein.
- Functions include reinforcing cell junctions, preventing cells from separating, and being a major component of hair and nails.
Joints
- (No information provided about joints in the given text)
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Description
This quiz explores the functions of motor molecules like Myosin, Kinesin, and Dynein, as well as the role of intermediate filaments in cellular structure. Learn how these components are crucial for processes such as cell division and structural integrity in cells. Test your knowledge on these essential cellular structures!
