How are integrins activated and how do they control cell proliferation? Regarding the cell-matrix adhesions they form, how do these adhesions respond to mechanical force?
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How are integrins activated and how do they control cell proliferation? Regarding the cell-matrix adhesions they form, how do these adhesions respond to mechanical force?
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- Microtubules are polar filaments; that is, one end is different from the other. What is the basis for this polarity, how is polarity related to microtubule organization within the cell, and how is polarity related to the intracellular movements powered by microtubule-dependent motors?What type of plasma membrane protein provides the means for moving materials across the plasma membrane? What are three subtypes?How are actin-regulatory proteinscontrolled spatially in the cytoplasm togenerate multiple distinct types of actinarrays in the same cell?
- How common are type I, type II, and type III membrane proteins?Why do you think apoptosis occurs by a different mechanism from the cell death that occurs in necrosis? What might be the consequences if apoptosis were not achieved in such a neat and orderly fashion, whereby the cell destroys itself fron within and avoids leakage of its contents into the extracellular space?Which of the following regarding microtubules is LEAST correct? A)Microtubules do not have important functions in neurons B)Microtubules are important for anterograde axoplasmic transport C)No answer text provided. D)Microtubules are important for maintaining the structure of the neuron E)Microtubules are important for retrograde axoplasmic transport
- What role does chromatin structure play in cell memory and in cell reprogramming?Cell swimming depends on appendages containing microtubules. What is the underlying structure of these appendages, and how do these structures generate the force required to produce swimming?What are centrioles? In which type of cell are they present?
