Question

Living organisms need oxygen for respiration.

• A. True
• B. False

Answer 1

The correct option is A True

Respiration-

• It is the process in which oxygen is used to burn food to obtain energy.
• All living organism need oxygen to obtain energy.
• $\underset{\mathrm{glucose}\left(\mathrm{food}\right)}{{\mathrm{C}}_6{\mathrm{H}}_{12}{\mathrm{O}}_6\left(\mathrm{s}\right)}+\underset{\mathrm{oxygen}}{2{\mathrm{O}}_6\left(\mathrm{g}\right)}\to \underset{\mathrm{carbon}\mathrm{dioxide}}{6{\mathrm{CO}}_2\left(\mathrm{g}\right)}+\underset{\mathrm{water}}{6{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right)}+\mathrm{energy}$

Hence,

This statement is true as living organisms need oxygen for respiration.