By observing mammal cardiac stomach, mammal pyloric stomach and duodenum explain how digestive enzymes work efficiently ?

Regardless of our diets which are composed of carbohydrates, fats and proteins the enzymes break them down into smaller components. Enzymes contain amylase, protease and lipase which are responsible for breaking down the three types of food.

Idont see a question here

Atp is is our little "pocket" of energy. of course, if you have too little, then it means you have too little energy, and you'll pass out. the way to not have enough, is to have no energy sources (glucose, fats, proteins). you can't have too many atp molecules. cycles like the krebs cycle produce it, but if you have too much of any substrate (or too little for that matter), the cycle stops and atp is no longer made (it stops until substrate levels are such that the process can go on). in any case, this is unlikely since atp is constantly hydrolyzed and remade, even while you're asleep. you won't have too much. if you have zero, you are dead or dying.