Question

The differences among the three categories of cytoskeletal elements outlined in the table above would suggest that each of the following has specialized roles. Which of the following is a correct match? (All three elements are involved in the maintenance of cell shape.)

A) microfilaments and the nuclear lamina
B) microtubules and cleavage furrow formation
C) microfilaments and ciliary motion
D) intermediate filaments and cytoplasmic streaming
E) microtubules and chromosome movement

Answer 1

The correct match among the specialized roles of cytoskeletal elements is microtubules and chromosome movement, as microtubules are key in aligning and separating chromosomes during cell division.

Step-by-step explanation:

The cytoskeleton is essential for maintaining cell structure, aiding in cellular movement, and facilitating cell division. It consists of microfilaments, intermediate filaments, and microtubules. Microfilaments, the thinnest type, are involved in maintaining cell shape, cellular movements, and cell division. They are also responsible for the contraction of muscle cells. Intermediate filaments are responsible for the structural integrity of the cell and anchoring organelles. Lastly, microtubules, the thickest filaments, assist in organelle movement, chromosome movement during cell division, and are structural components of flagella and cilia.

Considering the functions of these cytoskeletal elements, the correct match provided in the options is microtubules and chromosome movement. Microtubules play a pivotal role during cell division by aligning and separating chromosomes, ensuring that each daughter cell receives the correct number of chromosomes.