Intermediate filaments are required for which of the following cellular processe

Question

Intermediate filaments are required for which of the following cellular processes? A) Contraction of the rear of a migrating cell B) Transport of vesicles along an axon C) Strengthening of the long and thin axon of a nerve cell D) of a and in a migrating cell Which of the following does not occur during muscle contraction? A) GTP hydrolysis by the globular of myosin B) Binding of the globular head of myosin to actin C)conformational change of myosin D) Decrease in width of the sarcomere Which of the following cytoskeletal elements are known to with ? A) Actin B) Microtubules C) Intermediate Filaments D) All of the above The extension of a lamellipodium by a migrating cell depends on which of the following? A) Addition the of actin monomers at the plus end of actin filaments B) Formation of branched actin filaments by Arp2/3 c) Disassembly of actin monomers at the minus end of actin filaments D) All of the above Which of the following statements about m

Explanation / Answer

Question 6: The Arp2/3 complex mediates which of the following roles?

Answer: Option C: It nucleates Actin

The Arp2/3 complex mediates nucleation of actin Filaments.

Arp2/3 complex is having a major role in actin cytoskeleton regulation. It is having 2 subunits i.e. Arp 2 and Arp3. Arp2/3 complex is a seven-subunit protein complex.

Note: As per the guidelines we can answer only one question. So, I did not answer the remaining questions. Hope you can understand.

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