What happens to the K.I (Karyoplasmic Index) | vedclass

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Question

(A) The $K.I$ (Karyoplasmic Index) is defined as the ratio of the volume of the nucleus $(V_n)$ to the volume of the cytoplasm $(V_c)$,expressed as $K

Vedclass · Accepted Answer

$K.I$ decreases.

Vedclass · Answer

(A) The $K.I$ (Karyoplasmic Index) is defined as the ratio of the volume of the nucleus $(V_n)$ to the volume of the cytoplasm $(V_c)$,expressed as $K.I = V_n / V_c$.During cell growth,the volume of the cytoplasm increases significantly as the cell synthesizes proteins and organelles,while the volume of the nucleus remains relatively stable.Since the denominator $(V_c)$ increases while the numerator $(V_n)$ remains constant,the overall value of the $K.I$ decreases.When the $K.I$ falls below a critical threshold,it triggers the cell to undergo division to restore the balance between the nucleus and the cytoplasm.

What happens to the $K.I$ (Karyoplasmic Index) during cell growth?

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