Why is digestion of food considered a chemical reaction?
Answer and explanation
Correct answer: Complex substances in food chemically change into simpler new substances
During digestion, enzymes chemically convert complex food molecules into simpler substances. For example, starch is converted into simpler substances such as glucose. The formation of new substances identifies digestion as a chemical reaction. In contrast, merely cutting or chewing food into smaller pieces is mainly a physical change because no new substances are formed.
Frequently asked questions
What is the correct answer to this question?
Complex substances in food chemically change into simpler new substances
Why is this the correct answer?
During digestion, enzymes chemically convert complex food molecules into simpler substances. For example, starch is converted into simpler substances such as glucose. The formation of new substances identifies digestion as a chemical reaction. In contrast, merely cutting or chewing food into smaller pieces is mainly a physical change because no new substances are formed.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Chemical Reactions and Equations.
