Match each property or condition listed with the cytoskeletal system with which
ID: 83842 • Letter: M
Question
Match each property or condition listed with the cytoskeletal system with which it is best or most likely associated. a. The system whose polymerization would be most affected by a depletion of cellular ATP b. The system whose polymerization would be most affected by a depletion of cellular GTP c. The system that can withstand the most tension d. The system most associated with generating membrane-associated movements e. The system whose functional subunit is a protein monomer f. The system whose functional subunit is a protein dimer. g. The system whose functional subunit is a protein tetramer. h. The system that forms a radial array in interphase (in animal cells) i The system that forms two interdigitated radial arrays during mitosis (in animal cells) j. The system connected to spot desmosomes Dwain accidentally washed off the labels off of his three drugs that he was using to treat cells. One of the drugs inhibited myosin, one of them inhibited kinesin, and one of them inhibited dynein. Dwain picked one of the drugs at random and used it on some of his immune cells that normally secrete antibodies. When he analyzed the cells he saw that the cleavage furrow seemed to be working fine, the Golgi were forming fine, but the ER was not very spread out in the cells and the cells were unable to secrete any antibodies. Which drug had he likely used?Explanation / Answer
ANSWER OF QUESTION: 4
a) Actin filament. Explanation:Actin monomers bind either ATP or ADP, and both forms of G-actin are competent for polymerization so, depletion of cellular ATP affects polymerization.
b) Tubulin. Explanation : Tubilin homolog polymerization is also associated with an increase in GTPase activity.
c)Actin and Intermediate filaments. Explanation : Actin and intermediate filaments help maintaining the cell-shape by bearing tension.
d)Actin filament. Explanation: Actin filaments are also involved in movement of mebrane-bound vesicles with the help of myosin.
e) Actin filament. Explanation: Actin can be present as free monomer called G-actin which is globular or as part of a linear polymer microfilament called F-actin which is filamentous.
f) Tubulin . Explanation: Tubulins are assembled from dimers of - and -tubulin.
g)Intermediate filaments. Explanation: Intermediate filaments are assembled from antiparallel tetramers, both ends of intermediate filaments are equivalent.
h)Microtubules . Explanation:During interphase, microtubules and motor proteins are assembled into radial arrays
i) Microtubules . Explanation: During mitosis, microtubules nucleated at the duplicated centrosomes and form two radial arrays ,blue and orange.
j) Intermediate filaments. Explanation: Intermediate filaments connect adjacent cells through spot desmosomes.