Chewing food to break it down into smaller
particies represents a physical change
but the changing of starch into sugars by
enzymes in the digestive system represents
a chemical change.
Physical Change or Chemical Change
Give Reason?
Answers
Answer:
maybe this will help you
Enzymes and digestive juices in the stomach work to chemically break down proteins into amino acids. This is a chemical change. • Small intestine: By the time food has
Answer:
Food is taken into the mouth where it is broken down into smaller pieces by the teeth. As the teeth grip, cut and chew the food, saliva is released and mixes with the smaller food particles.
What physical change is caused by the action of chewing food?
Mechanical digestion involves breaking large pieces of food into smaller pieces of food. Physical actions of biting, chewing, mixing, and churning all contribute to mechanical digestion. These processes cause physical changes in food.
Definition of Physical Changes – Transformation that DO NOT change the chemical composition of the substance. NOTE: They are usually reversible, but consider shattering the glass in a window. Breaking is a physical change because the shards are still glass, but it can't be easily made whole again.