Question

The raw materials needed for respiration are

• A. Glucose and $O_2$.
• B. Glucose and $C{O}_2$.
• C. Glucose and carbon.
• D. Glucose and sucrose.

Answer 1

The correct option is A Glucose and $O_2$.

Respiration is a process in which glucose is oxidised to release carbon dioxide, water and energy in the presence or absence of oxygen by a multistep reaction.

So, the correct answer is 'Glucose and O${}_2$'.