Multiple Choice
During mitosis, what cellular structure is primarily responsible for moving chromosomes toward opposite poles of the cell?
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15. Cytoskeleton and Cell Movement
Microtubules and Cell Division
Multiple Choice
During eukaryotic cell division, which organelle organizes the mitotic spindle to help separate chromosomes?
A
Centrosome (containing a pair of centrioles in many animal cells)
B
Golgi apparatus
C
Lysosome
D
Ribosome
Verified step by step guidance1
Understand the role of the mitotic spindle during eukaryotic cell division: it is responsible for separating duplicated chromosomes into two daughter cells.
Identify the organelle that organizes microtubules to form the mitotic spindle. This organelle acts as the main microtubule organizing center (MTOC) in animal cells.
Recall that the centrosome contains a pair of centrioles in many animal cells and serves as the primary site for microtubule nucleation during mitosis.
Eliminate other options by their functions: the Golgi apparatus is involved in protein modification and sorting, lysosomes are responsible for degradation of cellular waste, and ribosomes synthesize proteins.
Conclude that the centrosome is the organelle that organizes the mitotic spindle to help separate chromosomes during eukaryotic cell division.
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