OBJECTIVE LIFE SCIENCE
ANIMAL PHYSIOLOGY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
Which of the following ratios of the surface area to volume would have the fast rate of diffusion
|
|
1.2:1
|
|
|
1:1
|
|
|
7:1
|
|
|
.7:1
|
Explanation:
Detailed explanation-1: -A larger surface area to volume ratio is accompanied by the high diffusion rate since most of the surface is exposed close to the diffusing medium, thus more efficient.
Detailed explanation-2: -Explanation: When the cell increases in size, the volume increases faster than the surface area, because volume is cubed where surface area is squared. When there is more volume and less surface area, diffusion takes longer and is less effective.
Detailed explanation-3: -The rate of diffusion is affected by the concentration gradient, membrane permeability, temperature, and pressure. Diffusion takes place as long as there is a difference between the concentrations of a substance across a barrier.
There is 1 question to complete.