311C F09 Worksheet_5 - Functions as a barrier blocking...

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NAME ____________________________ Bio 311C Discussion Worksheet #5 Cytoskeleton and Extracellular Components 1. List the three components of the cytoskeleton. What is the subunit used to build each? 2a. Describe the structure common to both cilia and flagella. 2b. Describe two major differences between cilia and flagella. 3. List two processes that might be disrupted if cells are treated with latrunculin – a toxin that causes microfilaments to depolymerize (fall apart). 4. List two processes that might be disrupted if cells are treated with colchicine – a toxin that causes microtubules to depolymerize (fall apart). 5. What is a motor protein? List one motor protein associated with microtubules and one associated with microfilaments. 6. For each of the following, name the correct type of cell junction. ___ Joins cells together to strengthen tissues but still permits passage of material between the cells
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Unformatted text preview: ___ Functions as a barrier, blocking passage of material between cells from one side of epithelial cell layer to the other ___ Protein channels that connect cells and permit the rapid passage of small materials between the cells ___ Connects plant cells, which are otherwise isolated by their surrounding cell walls. 7. How are gap junctions and plasmodesmata similar? How are they different? 8. What are the main components of the extracellular matrix? Where are they made and how do they come to be in their final location? 9. How is the extracellular matrix attached to a cell? List the molecules involved. 10. Describe the basic structure of a plant cell wall. 11. What is the function of the middle lamella?...
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