Explain why there are no known motors that use intermediate filaments as tracks?
Explain why there are no known motors that use intermediate filaments as tracks?
Homework Answers
Ans) Intermediate filaments (IFs) are nonpolar i.e they don't have positive and negative ends unlike microtubules and microfilaments and thus Intermediate filaments cannot undergo treadmilling.Thus,they are not involved in locomotory processes like vesicle transport etc.In intermediate filaments,addition and deletion occurs at the centre by phosphorylation and dephosphorylation respectively and thus no ends are involved.
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Explain why there are no known motors that use intermediate
filaments as tracks?
2. Actin filaments are polarized. Intermediate filaments are non-polar. Myosin thick filaments are bipolar. a. Explain...
2. Actin filaments are polarized. Intermediate filaments are non-polar. Myosin thick filaments are bipolar. a. Explain how the assembly of these filaments from their soluble monomers determines whether they are polar, nonpolar or bipolar. b. Why are the two ends of actin filaments designated as being ‘plus’ or ‘minus’? c. Why do intermediate filaments have such high tensile strength?
a. Although not considered as dynamic as actin filaments or microtubules, intermediate filament assemble and disassembly...
a. Although not considered as dynamic as actin filaments or microtubules, intermediate filament assemble and disassembly is routinely regulated by cells. What mechanism is used to control assembly of intermediate filaments? b. Intermediate filaments are difficult to disassemble during purification but cells normally disassemble all types of intermediate filaments at the beginning of M phase? How is this done?
For each of the following, decide whether it applies to actin filaments, intermediate filaments, and/or microtubules....
For each of the following, decide whether it applies to actin filaments, intermediate filaments, and/or microtubules. NOTE: there may be multiple answers for each statement. Found in the nucleus and cytoplasm ANSWER: Involved in the transport of vesicles and organelles ANSWER: Associate with proteins that help adhere cells to the extracellular matrix ANSWER: Their stability is influenced by nucleotide hydrolysis ANSWER: Directly involved in phagocytosis ANSWER: Can associate into bundles with the help of other proteins ANSWER:
How do intermediate filaments connect to other cytoskeletal proteins?
How do intermediate filaments connect to other cytoskeletal proteins?
of the three types of fibers; microfilaments (or and intermediate filaments are fibers with diameters in...
of the three types of fibers; microfilaments (or and intermediate filaments are fibers with diameters in a Microtubules are the filaments) are the middle range. Microtubules are hollow rods about 25 nm in diameter and 200 nm to 25 um in length. Microtubule fibers are constructed of the globular protein A tubulin dimer consists of two slightly different polypeptides: a-tubulin and B-tubulin. Microtubules shape and support the cell and serve as tracks to guide motor proteins carrving organelles to their...
Compare and Contrast all three cytoskeletal elements (microtubules, microfilaments, intermediate filaments).
Compare and Contrast all three cytoskeletal elements (microtubules, microfilaments, intermediate filaments).
Intermediate filaments differ from microtubules and microfilaments in size and also in that they are A....
Intermediate filaments differ from microtubules and microfilaments in size and also in that they are A. found only in prokaryotes B. found only in plant cells C. tissue specific D. found only in the nucleus E. extracellular
How do intermediate filaments assemble from their subunits in a way that loses their polarity? ii...
How do intermediate filaments assemble from their subunits in a way that loses their polarity? ii FF • S B IU QiLearn Video
4. Motor Class Create an application that tracks electric motors in a manufacturing plant. The ap-...
4. Motor Class Create an application that tracks electric motors in a manufacturing plant. The ap- plication should have a Motor class with the following properties: . Motorld: . Description: String e RPM: Five-digit string, such as 02340" Voltage: - Status: Double, values in the range 10 to 10000 Double, values in the range 1 to 500 String, three characters
Intermediate filaments have been identified in ___________________. a. plant cells b. animal cells c. all of...
Intermediate filaments have been identified in ___________________. a. plant cells b. animal cells c. all of these are correct answers d. bacterial cells
of the three types of fibers; microfilaments (or and intermediate filaments are fibers with diameters in a Microtubules are the filaments) are the middle range. Microtubules are hollow rods about 25 nm in diameter and 200 nm to 25 um in length. Microtubule fibers are constructed of the globular protein A tubulin dimer consists of two slightly different polypeptides: a-tubulin and B-tubulin. Microtubules shape and support the cell and serve as tracks to guide motor proteins carrving organelles to their...
How do intermediate filaments assemble from their subunits in a way that loses their polarity? ii FF • S B IU QiLearn Video
4. Motor Class Create an application that tracks electric motors in a manufacturing plant. The ap- plication should have a Motor class with the following properties: . Motorld: . Description: String e RPM: Five-digit string, such as 02340" Voltage: - Status: Double, values in the range 10 to 10000 Double, values in the range 1 to 500 String, three characters
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