9 Questions
What is the main function of the cytoskeleton in a mammalian cell?
Cell shape maintenance
Which subunits make up microtubules in a mammalian cell?
Alpha and beta tubulin
What characterizes the polarity of microtubules in a mammalian cell?
Plus end elongates more rapidly
Which cellular structure is a small unit made of microtubules and is part of the centrosome?
Centriole
What is the role of the centrosome in a mammalian cell?
Assisting in cell division
What is the function of microtubules related to mitotic spindle formation?
Form the mitotic spindle during cell division
Which motor protein moves an organelle towards the plus end of microtubules?
Kinesin
What is the unique feature of centrioles ultra-structurally?
Each centriole is in the form of a cylinder composed of 9 triplets of microtubules (9 x 3)
What is the function of motile cilia and flagella?
Enable cell movement through bending by sliding past each other
This quiz covers the topic of cytoskeleton in cell biology, focusing on its role as the supportive structure of the cell and its various components such as microtubules, microfilaments, and intermediate filaments. The quiz is based on lecture 5 by Dr. Noora Majid Kadhium from the Department of Anatomy.
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