Cytoskeleton Tubulin 1 Quiz
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Cytoskeleton Tubulin 1 Quiz

Test your knowledge of microtubules and kinesin with this BIOL2020 quiz. Explore concepts such as tubulin heterodimers, polarity, kinesin motors, and the structure of kinesin proteins. Sharpen your understanding of these essential components of the cytoskeleton.

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@TollFreeHorse2475

Questions and Answers

What are microtubules made of?

Alpha and beta tubulin heterodimers

Which direction do classic kinesins move along microtubules?

Towards the plus ends

What is the structure of kinesin?

Tetramer protein with two heavy chains and two light chains

What is the function of kinesin-13 proteins?

<p>Induce depolymerization uniquely from both ends of the microtubule</p> Signup and view all the answers

Which motor protein moves towards the minus ends of microtubules?

<p>Cytoplasmic Dynein</p> Signup and view all the answers

What is the role of the tail of kinesin-14 (Ncd)?

<p>Bind microtubules and organize microtubule bundles</p> Signup and view all the answers

Which motor protein is approximately 4 times bigger and more complex than kinesin?

<p>Cytoplasmic Dynein</p> Signup and view all the answers

Which motor protein has irregular steps during movement?

<p>Cytoplasmic Dynein</p> Signup and view all the answers

Which motor protein is involved in the transport of organelles and axonal transport?

<p>Cytoplasmic Dynein</p> Signup and view all the answers

What is the speed of synaptic vesicle movement?

<p>5 μm/second</p> Signup and view all the answers

What is the core of the cilium and flagellum composed of?

<p>Microtubules and associated proteins</p> Signup and view all the answers

Which motor protein bends the axoneme to move the cilium and flagellum?

<p>Axonemal Dynein</p> Signup and view all the answers

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