AP BIOLOGY

THE CELL

STRUCTURE AND FUNCTION OF THE CELL

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
For cells to stay alive they require what type of SA:V?
A
Large SA, Large V
B
Small SA, Large V
C
Large SA, Small V
D
Small SA, Small V
Explanation: 

Detailed explanation-1: -In general, small size is necessary for all cells, whether prokaryotic or eukaryotic.

Detailed explanation-2: -A larger surface area to volume ratio is more efficient than a smaller ratio. This is due to the amount of plasma membrane relative to the volume of the cell. The more plasma membrane available to transport materials in and out of the cell, the more efficient the cell will be in completing its specific functions.

Detailed explanation-3: -So when the cell reaches a size too large, it will divide into smaller cells in order to maintain a surface area/volume ratio that is more favorable to the functioning of the cell. Therefore, cells remain small in order to survive.

Detailed explanation-4: -Answer: The surface area to volume ratio (SA:V) limits cell size because the bigger the cell gets, the less surface area it has for its size.

Detailed explanation-5: -Seeing that the surface area to volume ratio of cells generally decreases as cells get larger, making the exchange of resources, waster and heat more and more difficult.

There is 1 question to complete.