what happened if you increases the size of a cell?

Question

the teacher was talking about it i got very confuse

Answer 1

There are several problems that bigger cells have:

1. Diffusion doesn't happen fast enough to supply all the needs of a bigger cell.
2. The genes in the DNA can't be copied fast enough to have all the instructions to run a big cell. (Kind of like the way a bio teacher has time enough to handle all the questions in a small class, but not in a big class.)
3. When cells get big the cell's volume increases more than its surface area increases. Since materials must come into or go out of the cell through the surface (the cell membrane), there isn't enough cell membrane to take care of all that for a big cell.

So, rather than get too big, cells divide.

Answer 2

I'm not sure what you want. If a cell swells with water because of osmotic pressure it can burst. That is likely what caused the death of the woman on the radio program last week.
If you mean it has grown and receives a message to divide into two cells it does so by a process called mitosis.

Answer 3

Hypertonic Solutions: contain a high concentration of solute relative to another solution (e.g. the cell's cytoplasm). When a cell is placed in a hypertonic solution, the water diffuses out of the cell, causing the cell to shrivel.

Hypotonic Solutions: contain a low concentration of solute relative to another solution (e.g. the cell's cytoplasm). When a cell is placed in a hypotonic solution, the water diffuses into the cell, causing the cell to swell and possibly explode.