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What smaller molecules result when proteins are chemically changed by digestion?
The first product of proteins digestion are polypeptides.
The process by which food substances are chemically changed into simpler forms that can be absorbed is called?
The process by which food substances are chemically changed into simpler forms that can be absorbed is called digestion. This process involves the breakdown of complex molecules into smaller molecules that can be transported and utilized by the body for energy and nutrition.
What small molecules result when protein are chemically changed by digestion?
Proteins are broken down into amino acids. These are actually called the building blocks of proteins.
During digestion fat is changed into?
Fatty acid molecules and glycerol
How is starch changed by saliva in the mouth?
Saliva contains an enzyme called amylase, which breaks down starch into simpler sugars like maltose. When you chew food, the amylase in saliva starts breaking down the starch molecules into smaller sugar molecules, which makes the food sweeter as digestion begins in the mouth.
How can matter be changed?
Physically or chemically.
What is paper changed into when has been changed chemically by fire?
Ash and smoke.
Is the starch in potato is changed into simpler sugars by enzymes in the digestive system a chemical or physical?
Potatoes are mostly starch, a type of carbohydrate. Your stomach only initiates the digestion of proteins and does not digest carbohyrates or fats. When carbohydrates are digested, it occurs in the duodenum, the first portion of the small intestines. Here they undergo both chemical and physical changes. The digestion of carbohydrates begin in the mouth with the secretion of salivary amylase. The physcial digestion is considered to be mechanical at this point and is produced by chewing (masticating) your potatoes.
What scientist that said that atoms can be changed chemically?
Dalton
What will happen to the molecules when it freezes?
When a molecule freezes, the kinetic energy of that molecule decreases, and the molecules do not move as fast. It is chemically unaltered, but on the phase has changed, making it a physical change.
What is the class of the food that begins to get chemically changed in the mouth?
starches
Why is water evaporation a physical change and not a chemical change?
Nothing is chemically changed when water goes from liquid-->gas. All that's happening is the molecules moving faster. H20(l)-->H20(g)
