If an interphase cell is treated with cyanide the cell does not divide by mitosis. However if cyanide is added right after mitosis has started the same cell completes mitosis. Which of the following explains this observation?
a) metabolic activity ceases during mitosis
b) cell division does not require metabolic activitactivity
c) energy required for mitosis is produced and stored in the cell during interphase
d) mitotic cells make factors that make them resistant to cyanide

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Solution

answer is option (c) energy required for mitosis is produced and stored in the cell during interphase

When a cell is in interphase, it needs more energy because replication of DNA, transcription and then translation of several proteins that requires in mitotic phase is synthesized by the cell and Cyanide inhibit the ATP synthesis, so in this case a cell affected more.

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