Which of the following binds ATP/ADP?
a. microfilaments
b. microtubules
c. intermediate filaments
d. microfilaments and microtubules
e. microfilaments and intermediate filaments
Option b is correct because when second head domain binds to the microtubule, the first head releases ADP and binds ATP.
Which of the following binds ATP/ADP? a. microfilaments b. microtubules c. intermediate filaments d. microfilaments and...
Which of the following associate with kinesin and dynein? O Microtubules O Microfilaments Intermediate filaments All of the above Two of the above None of the above All movement of organelles along cytoskeletal proteins uses ATP as the energy source. True False
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
Compare and Contrast all three cytoskeletal elements (microtubules, microfilaments, intermediate filaments).
What component of the cytoskeleton is associated with tight junctions? intermediate filaments O microfilaments microtubules Question 3 2 pts Epiethelial cells have which of the following on their basal surfaces? O adherens junctions hemidesmosomes O tight junctions O gap junctions desmosomes
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...
EpothiloneB: binds to b-tubulin and prevents depolymerization Many chemotherapeutic drugs target microtubules and microfilaments. Two drugs are listed below. One affects microtubules and one affects microfilaments. These drugs ACT ON THE NORMAL PROCESSES of cytoskeletal dynamics. Use your understanding of these processes to postulate on how the drug achieves its effect! Given the effect of the drug what stage or stages of the cell cycle might be affected by this drug? Explain your reasoning
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:
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?
compare and contrast the three different filaments
found in the cytoskeleton system.
please go into more detail than the space allotted.
4) Compare and Contrast the three different filaments found in the cytoskeleton system. Intermediate Filaments Actin (microfilaments) Microtubules a. UNIQUE Function (s) of filament b. Dynamic or Static c. Interacts with which motor proteins?
Which of the following statements about microtubules is correct?
Q 17-4 Homework • Unanswered • Due in a day Which of the following statements about microtubules is correct? We know that depolymerization of microtubules is important for the function of a mitotic spindle apparatus because the drug colchicine blocks cell division. O B Microtubule structure consists of a 9+2 arrangement of protofilaments. 0 C Protection of the GTP cap by stabilizing proteins is required for the formation of stable microtubule...