An enzyme works like a key to a lock. If it finds the right thing it can work.
Hope it helps.
⭐️Your body cells use the oxygen you breathe to get energy from the food you eat. This process is called cellular respiration. During cellular respiration the cell uses oxygen to break down sugar. ... When the cell uses oxygen to break down sugar, oxygen is used, carbon dioxide is produced, and energy is released.⭐️
Involuntary, meaning things in the body such as your heart is all regulated to act unconsciously while also receiving directives from the brain.
Because they supply much energy to the food by preparing their own food because the above one can't prepare it own their own