Dee Dee's homework

1. CELL GROWTH
By: Diana Barba
Per.1

2. • The larger a cell becomes, the more
demands the cell place on its DNA.
• As a cell starts to increase in size, it
usually does not make copies of DNA.
• If a cell happens to grow without a limit,
an “information crisis” would soon occur.

3. Cell increasing
• As a cell increases in size, the more
trouble it has moving enough nutrients and
waste across its cell membrane.
• The rate at which materials move through
the cell membrane.
• It depends on the surface area of the cell.

4. • The rate at which food and oxygen
are used up and waste products are
produced
• The way they are produced depends
on the volume of the cell.

5. • If a cell were a cube, you could determine
surface area by multiplying length X width
X number of the sides.
• You could determine the volume of the cell
by dividing the surface area by the
volume.

6. • As a cell grows, its volume increases more
than its surface area.
• A cell is large because, its ratio of surface
area to volume decreases.
• Before the cell becomes too large, a growing
cell divides it.
• It divides it by forming two “daughter cells”.
• The process by which a cell divides into two
new daughter cells is called cell division

7. • Dividing into two daughter cells