Context, I woke up ill this morning and ended up vomitting. I realised that I was vomiting my dinner from 13 hours previous!
This got me questioning where my body was getting energy from, how exactly energy gets ‘in’ to the body after eating, and how is food from so long ago largely undigested?
My very limited understanding is Food goes in acid -> food dissolves, undesired/undigestable expelled as waste. How does the ‘good stuff’ go from particles in the stomache acid into usable energy/resources?
In: Biology
Lurking. My understanding is that food’s constituents are broken down by chemicals in your stomach into their simplest forms. Most food is held together by relatively weak bonds.
A good answer should mention cellular respiration, the keeps cycle (citric acid cycle), and ATP. Oxidation of food (electrons flowing into oxygen molecules) is ultimately what provides the energy for ATP synthesis.
There will probably be some good answers on here.
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