PHYSIOLOGY
MUSCLE ENERGETICS GLYCOLYSIS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
exergonic
|
|
|
endergonic
|
|
|
Either A or B
|
|
|
None of the above
|
Detailed explanation-1: -Respiration involves the breakdown of complex food materials into simpler molecules. Hence it is a catabolic process. It is accompanied by the release of chemical energy (ATP), so it’s an exergonic process also.
Detailed explanation-2: -Cellular respiration is an exergonic (energy-releasing) process.
Detailed explanation-3: -The events of cellular respiration up to this point are exergonic reactions – they are releasing energy that had been stored in the bonds of the glucose molecule. This energy will be transferred to the third and final stage of cellular respiration: the Electron Transport System, which is an endergonic reaction .
Detailed explanation-4: -Thus, the respiration process is an exergonic process.
Detailed explanation-5: -The reactions of cellular respiration are catabolic reactions. In catabolic reactions, bonds are broken in larger molecules and energy is released. In cellular respiration, bonds are broken in glucose, and this releases the chemical energy that was stored in the glucose bonds.