Why is the breakdown of glucose during aerobic respiration a chemical reaction?
Answer and explanation
Correct answer: Glucose reacts with oxygen to form new substances and release energy
In aerobic respiration, glucose reacts with oxygen to form new substances such as carbon dioxide and water, while releasing energy: \(\mathrm{C_6H_{12}O_6 + 6O_2 \rightarrow 6CO_2 + 6H_2O + energy}\). Formation of new substances is the key feature of a chemical reaction. Option B describes only a physical change, in which no new substances are formed.
Frequently asked questions
What is the correct answer to this question?
Glucose reacts with oxygen to form new substances and release energy
Why is this the correct answer?
In aerobic respiration, glucose reacts with oxygen to form new substances such as carbon dioxide and water, while releasing energy: \(\mathrm{C_6H_{12}O_6 + 6O_2 \rightarrow 6CO_2 + 6H_2O + energy}\). Formation of new substances is the key feature of a chemical reaction. Option B describes only a physical change, in which 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.
