In the process of respiration , aerobic organisms generally us

answer:

respiration using oxygen to break down food molecules is called aerobic respiration . 'aero' means air, which contains oxygen, leading to the name aerobic respiration. glucose is the molecule normally used for respiration - it is the main respiratory substrate .

aerobic respiration is the process of producing cellular energy involving oxygen. cells break down food in the mitochondria in a long, multistep process that produces roughly 36 atp. the first step in is glycolysis, the second is the citric acid cycle and the third is the electron transport system.

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the explanation is: the answer is d

when we exhale, we breathe out less oxygen but more carbon dioxide than we inhale. the carbon we breathe out as carbon dioxide comes from the carbon in the food we eat. the carbon dioxide is dissolved in the blood, carried to the lungs by the circulation, and breathed out.

answer:   option a) glucagon was secreted by his pancreas before he ate the cookies because blood glucose was low. insulin was secreted after he ate the cookies because his blood glucose was high.

explanation: