Surface Area and Volume Flashcards
1
Q
What is Surface Area?
A
The outside area of an object.
2
Q
Define Volume
A
Volume refers to the amount of space inside the object
3
Q
True or False
Does a small object have a larger surface area to volume ratio than a larger area?
A
True
4
Q
What happens to cell’s Surface Area to Volume ratio (SA/V) as it grows.
A
The cell’s volume increases at a greater rate than its surface area.
5
Q
List two ways that a cell increase its SA:V ratio and give an example of each.
A
- Having a elongated shape. eg. nerve cells.
2. Folding its cell membrane eg. the villi of the small intestines.
6
Q
Why are small cells more efficient at diffusion?
A
Small cells have a higher efficiency at diffusion as they have a high SA:V ratio.
