Microtubule is involved in which of the following?
Correct answer: C. Cell division
- A. Muscle contraction
- B. Membrane architecture
- C. Cell division
- D. DNA recognition
Explanation
Microtubules are unbranched hollow submicroscopic tubules of protein tubulin that develop on specific nucleating regions and can undergo quick growth or dissolution at their ends by assembly or disassembly of monomers. Microtubules form spindle during cell division. Centrioles help in cell division by forming spindle poles or microtubules. In animal cells, microfilaments collect in the middle region of the cell below the cell membrane. They induce the cell membrane to invaginate. In plant cells. cell plate is formed to separate the two daughter cells. Some of the spindle fibers called the interzonal microtubules are deposited around the phragmoplast. Vesicles from the Golgi apparatus are deposited and coalesce on the phragmoplast to form a cell plate.
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About Cell Structure and Function
Animal, plant, prokaryotic and eukaryotic cells are compared through their membranes, cell walls, nuclei and cytoplasmic organelles. The work includes the structures and functions of mitochondria, chloroplasts, ribosomes, endoplasmic reticulum, Golgi apparatus and lysosomes, as well as chromosome organization and the distinction between chromatin and chromosomes.
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