Topic 3 study questions with answers

Topic 3 study questions with answers - Study questions...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Study questions – Topic 3 The cytoskeleton Multiple choice questions (1 mark per answer) 1. The thick filaments of skeletal muscle cells are composed of the protein. .. (a) Keratin (b) Actin (c) Kinesin (d) Myosin (e) Titin 2. What properties of intermediate filament monomers distinguish them from the monomers that make up microfilaments or microtubules? (a) There are numerous different types in an individual cell type. (b) They are primarily fibrous rather than globular proteins. (c) They do not bind and hydrolyze nucleotides. (d) Both b and c are true. (e) All of a, b and c are true. 3. Microtubules are not a structural component of. .. (a) Cilia (b) Bacterial flagella (c) Microvilli (d) Mitotic spindle (e) Microtubules are a structural component of all of a, b, c and d. 4. Kinesins and dyneins… (a) Move along both microtubules and microfilaments. (b) Generally move in opposite directions to each other. (c) Derive their energy from GTP hydrolysis. (d) Have globular heads that contain actin-binding sites. (e) All of a, b, c, and d are true of kinesins and dyneins 5. Which of the following statements is not true of the cytoskeletal elements? (a) Intermediate filaments and microfilaments but not microtubules strengthen cell-to-cell connections. (b) Microtubules and microfilaments but not intermediate filaments allow for the intracellular transport of molecules within the cytoplasm. (c) Intermediate filaments and microtubules but not microfilaments function in organizing organelles within the cytoplasm. (d) Cellular motility can be driven by microtubules and microfilaments but not intermediate filaments. (e) All of a, b, c and d are true of the cytoskeletal elements.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
6. The minus end of a microtubule… (a) Is the end that is bound to -tubulin rings in the centrosome. (b)
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 03/30/2012 for the course SCIENCE BIO1140 taught by Professor Fenwick during the Spring '09 term at University of Ottawa.

Page1 / 4

Topic 3 study questions with answers - Study questions...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online