These substances are called digestive enzymes.
A substance that speeds the changing of food into a usable form* is called an enzyme. More generally, in any chemical context, a substance that speeds a reaction without itself being changed is called a catalyst._______________________________________*This changing of food into a usable form is called "digestion".
The food you are eating changes state. The food is a solid but it get its state changes by you chewing food. Changing state is making a chage in apperance. So in a way it is a chemical change If that answers your question, your welcome!!
Food energy is used for heat and motive energy (muscle contraction).
The teeth grinding is a mechanical change. The saliva mixing in with the food and starting the digestive process would be a chemical change.
All are examples of chemical changes
A substance that speeds the changing of food into a usable form* is called an enzyme. More generally, in any chemical context, a substance that speeds a reaction without itself being changed is called a catalyst._______________________________________*This changing of food into a usable form is called "digestion".
Chemical Change
metabolism
changing atmospheric nitrogen to a usable form
eggh
photosynthesis
Food energy is a type of chemical energy (specifically, any chemical energy that is usable for living beings). And chemical energy is the potential energy related to forces between atoms.
The digestive system processes food into usable and unusable materials by chemical digestion. The usable materials are transported via the cells throughout the body while the unusable materials are sent to the large intestine where it waits to be disposed of.
The chemical process that turns food into the greatest amount of energy possible is called cellular respiration, and is represented by the following equation: C6H12O6 + 6O2 ---> 6CO2 + 6H2O.
Food is broken down into nutrients by the digestive system. Ingested food is transformed into usable nutrients by mechanical and chemical processes in the digestive system.
you need food because food contains protein and the enzymes are made out of protein and the enzyme speeds up the chemical reaction in a human body
chemical because heat is going on to it and it is changing texture by Alexandra holly middlehurst xoxo