Which of the following is an effect of a decrease in the surface-area-to-volume ratio of a cell? A. Genes mutate, resulting in a cancerous cell, B. Waste removal becomes slower, C. The cell cycle speeds up. I am thinking it is A but I am not positive.

Question

aaronq · Answer

Surface area-to-Volume ratio alters the rate of diffusion of substances across the plasma membrane. Waste removal is one of these processes that depend on this rate.

abhisar · Answer

can it be c ?

anonymous · Answer

So B would be the correct answer?

aaronq · Answer

B would be correct. 

I dont see how it could be C, what is your reasoning for that?

abhisar · Answer

disturbance in karyoplasmic index..??

anonymous · Answer

B I THINK

aaronq · Answer

whats "karyoplasmic index"?

abhisar · Answer

Kern plasm theory, according to it mitosis is due to disturbance in karyoplasmic index

abhisar · Answer

KI = $$V _{n}/V _{c} - V _{n}$$

abhisar · Answer

Vn = volume of nucleus, Vc = volume of cell

aaronq · Answer

true, i've never heard of it. I googled it and nothing came up. Can you tell me where i can find out more about it?

abhisar · Answer

I don know exactly.... it was proposed by richard hertwig

abhisar · Answer

http://plaza.ufl.edu/alallen/pgl/modules/rio/stingarees/module/why.html

abhisar · Answer

Plz check this link @aaronq

aaronq · Answer

So yeah, according to that link there is a dependence on the ratio that will trigger mitosis, though it doesn't provide quantitative information (say, a threshold for the decrease in the ratio that will trigger mitosis). So you're right, they are both possible answers.

abhisar · Answer

Thnx @aaronq !