W23 d103 - Study guides, Class notes & Summaries
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D103 midterm 2024 Latest Update Accurate 100%
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Which of the following size relationships is most correct? - ANSWER Mitochondria size > vesicle size > membrane thickness 
 
Which of the following processes can be readily studied in the budding yeast Saccaromyces cerevisae? - ANSWER Protein transport 
 
Why is cholesterol able to integrate into lipid bilayer? - ANSWER Because it has an amphiphatic organization, similar to membrane lipids 
 
Which of the following states is true for phosphatidic acid (PA) and phosphatidylcholine (PC)? - A...
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D103 - Lecture 5&6 QUIZZES & SOLUTIONS
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In an in vitro polymerization reaction of F-actin from its G-actinsubunits, there is a lag phase. What happens during this lag phase? 
 
A: F-actin is nucleated. 
 B: F-actin reaches a steady state 
C: F-actin exchanges nucleotides 
D: F-actin hydrolyzes ATP 
E: F-actin undergoes treadmilling - ANSWER A: F-actin is nucleated. 
 
3. How would you test whetheractin cytoskeleton promotes mitochondria fissionprocess? 
A: Prevent F-actin assembly and examine mitochondria dynamics by monitoring a GFP...
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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...
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Package Deal For Bio D103 Exam Questions and Answers With Complete Solutions 2024 Graded A
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Package Deal For Bio D103 Exam Questions and Answers With Complete Solutions 2024 Graded A Package Deal For Bio D103 Exam Questions and Answers With Complete Solutions 2024 Graded A
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