W23 d103 Study guides, Class notes & Summaries
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D103 - Lecture 9&10 QUIZZES & Answers
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1. Which of the following factors is NOT a component of the extracellular matrix (ECM)? A: Keratin B: Collagen C: Fibronectin D: Fibroblasts E: Proteoglycans - ANSWER A. Keratin 2. Which feature is shared between adherenjunctions and desmosomes? A: Both needs Ca2+to function B: Both connect the intermediate filaments of neighboring cells C: Both only contain cadherin andcytoskeleton D: Both promote cell migration E: Both have outside-in and inside-out signaling - ANSWER A: Both...
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D103 End of Lecture Questions: Lec 5 Correct Questions & Answers
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14. The growth rates at the plus and minus ends of actin filaments as a function of actin concentation are shown. At which point (marked by a letter) does F-actin a. Shrink at both ends? A b. Treadmill? C c. Grow at the plus end and stay constant at the minus end? D - ANSWER At each point, try to determine what will happen to a specific end of an actin filament, with the Y=0 determining whether a filament growth (>0) or shrinks ((>0) Eg at point A (which refers to cytosolic concen...
