Question

please write it neatly so I can usneratand. Thank you!

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. A. Found in the nucleus and cytoplasm B. Involved in the transport of vesicles and organelles C. Associate with proteins that help adhere cells to the extracellular matrix D. Their stability is influenced by nucleotide hydrolysis E. Directly involved in phagocytosis F. Can associate into bundles with the help of other proteins

Answer 1

I have mentioned the filament types, with applicable statement shown with letter and reason or example explaining the same.

Actin Filaments:

A (all three filament types are found in the cytoskeleton which extends from nucleus to plasma membrane of cell)

B (Can help for the transport of cargoes, including protein-containing vesicles and even organelles. These cargoes are carried by individual myosin motors, which "walk" along actin filament bundles.)

C (actin filaments interact with integrins, which are key proteins involved in adhering to the ECM)

D (ATP hydrolysis controls the asscoiations of actin filaments)

E (an important function of phagocytosis is to rapidly change shape, which is the function of actin filaments, becoming the main target during this process)

F (forms bundles for myosin interaction)

Intermediate Filaments:

A (reason mentioned above)

F (bundles of protofilaments with tight associations)

Microtubules:

A (reason mentioned above)

B (They provide tracks for motor proteins called kinesins and dyneins, which transport vesicles and other cargoes around the interior of the cell)

F (bundle formation of microtubules is critical for cell division stages)