Lesson 5: SA To Volume Ratio And Cell Size Flashcards
1
Q
Why cannot cells get large
A
The way a cells volume changes in relation to its surface area
2
Q
Surface area formula
A
Area of one face x 6
3
Q
Formula of volume
A
L • W • H
4
Q
As a cell ________ it’s surface to volume ratio decreases
A
Increases
5
Q
As the Size of a cell doubles SA:V ratio _________ by half
A
Decreased
6
Q
What do cells rely on for materials?
A
Diffusion
7
Q
What happens with a larger volume?
A
The larger the number of reactions.
8
Q
What can all raw materials necessary for metabolism enter the cell through?
A
It’s cell membrane
9
Q
How do cells get around the limits of the surface to volume ratio? (4 ways)
A
- Divide
- Slow down metabolism
- Get long and thin
- Folds in the cell membrane
10
Q
As a cell’s surface and volume get bigger, what happens to its SA: V ratio
A
It gets smaller and smaller each time Surface Area and Volume increase
