AP BIOLOGY

Detailed explanation-1: -Centrosome Before cell division, the centrosome duplicates and then, as division begins, the two centrosomes move to opposite ends of the cell. Proteins called microtubules assemble into a spindle between the two centrosomes and help separate the replicated chromosomes into the daughter cells.

Detailed explanation-2: -Centrosomes are organelles that serve as the main microtubule-organizing centers for animal cells. Centrosomes are made up of two, barrel-shaped clusters of microtubules called “centrioles” and a complex of proteins that help additional microtubules to form.

Detailed explanation-3: -The centrosome is the major microtubule-organizing center in the cell. During interphase the centrosome is responsible for creating a microtubule array and during mitosis it assists in bipolar spindle assembly.

Detailed explanation-4: -Definition. Centrioles are paired barrel-shaped organelles located in the cytoplasm of animal cells near the nuclear envelope. Centrioles play a role in organizing microtubules that serve as the cell’s skeletal system.