PATHOLOGY

PATHOLOGY MCQ

CELL DAMAGE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
If a cell is cubic shaped with each side having a length of 3 cm, what is the surface area to volume ratio of the cell?
A
6:1
B
3:1
C
2:1
D
1:1
Explanation: 

Detailed explanation-1: -SA = 3 cm x 3 cm x 6 = 54 cm2 Notice that the units are “square” units. VOLUME (V) is the amount of space inside an object.

Detailed explanation-2: -What is the surface area of a cube if its height is 3 cm? Explanation: The area of one face is given by the length of a side squared. The area of 6 faces is then given by six times the area of one face: 54 cm2.

Detailed explanation-3: -For a given shape, SA:V is inversely proportional to size. A cube 2 cm on a side has a ratio of 3 cm−1, half that of a cube 1 cm on a side. Conversely, preserving SA:V as size increases requires changing to a less compact shape.

Detailed explanation-4: -The surface to volume ratio, or S/V ratio, refers to the amount of surface a structure has relative to its size. To calculate the S/V ratio, simply divide the surface area by the volume.

There is 1 question to complete.