In anaphase of mitosis, the chromosomes move to opposite ends of the dividing..?

Question

In anaphase of mitosis, the chromosomes move to opposite ends of the dividing cell. The movement of the chromosomes requires cellular energy. This type of movement is an example of _______________.

dynamic equilibrium

natural balance

active transport

passive transport

Answer 1

of the above choices Active Transports require ATP.

However, i'm not sure if chromosome move to the opposite ends by ATP, but certain with the help of microtubules that pull the chromosome a part.

Answer 2

The closest answer is a) dynamic equilibrium. There are some research available on line, and here is one of them
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Abstract:
We have used a Ca2+-sensitive dye, fura-2, to investigate the role of Ca2+ during mitosis in Pt K2 epithelial cells. The concentration of cytoplasmic free calcium, [Ca2+]i, increased 2-fold between metaphase and anaphase. Digital image analysis revealed two patterns of [Ca2+]i localization during anaphase. In half of the anaphase cells, the increase in [Ca2+]i was greatest in the region near the spindle poles and decreased radially. In the other anaphase cells, there was a ring of high [Ca2+]i in the cytoplasm, surrounding an area of low [Ca2+]i in the spindle midzone. Although the reason for the different patterns is not known, peak [Ca2+]i in both cases was sufficient to maintain a 2- to 6-fold gradient in [Ca2+]i from the polar region to the midzone. [Ca2+]i gradients may thus regulate spindle microtubule equilibria and directed chromosome movement during mitosis.

Answer 3

anything