MEDICAL
LUNGS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
The movement of a substance from a region of high concentration to a region of low concentration (down the concentration gradient).What is this a definition of?
|
|
Active transport
|
|
|
Diffusion
|
|
|
Osmosis .Cells will also need more oxygen and produce more carbon dioxide as a result of that increased respiration.When blood reaches the lungs, a larger volume of air is needed to replace the increased levels of O2 used and remove the CO2 produced. The body increases the rate and depth of breathing to compensate for this.The time taken for breathing rate to return to normal is known as recovery time and can be used as a measure of fitness.
|
|
|
None of the above
|
Explanation:
Detailed explanation-1: -Diffusion is the movement of molecules from a region of higher concentration to a region of lower concentration down the concentration gradient.
Detailed explanation-2: -Diffusion refers to the process by which molecules intermingle as a result of their kinetic energy of random motion. It is the net movement of molecules or atoms from a region of high concentration to a region of low concentration. This is also referred to as the movement of a substance down a concentration gradient.
There is 1 question to complete.