Question

Oxygen is the end product in photosynthesis, whereas ........... is the end product in respiration.
A) Carbon dioxide
B) Nitrogen
C) Oxygen
D) Water

Answer 1

Hint: Respiration is a biochemical method of a chain of chemical reactions which enables all living entities to synthesize and utilize the required quantity of energy in order to sustain. It is also referred to as a metabolic technique in which strength is obtained in the course of the change of gases.

Complete answer:
Respiration in plant life is a process in which the chemical power is produced in the form $ATP$ molecule. This system takes area via the oxidation of easy sugar i.e., glucose which is shaped in cells due to the breakdown of extra complex carbohydrates. Therefore the presence of this glucose is then converted into energy and produces 3 carbon compounds and water as by-products.

The process of respiration in flora that takes the region in mitochondria alongside with the presence and utilization of oxygen is termed as cardio respiration. The presence of oxygen is utilized to destroy down the chemical bonds in glucose in order to liberate excessive volumes of electricity and produce carbon dioxide and water as end-products throughout respiration.
This method of breathing can be represented by way of a easy chemical equation:
\[6{C_6}{H_{12}}{O_6} + 6{O_2} \to 6C{O_2} + 6{H_2}O + 36ATP\]

According to the above equation, it is showing that six molecules of carbon dioxide $(C{O_2})$ , six molecules of water $({H_2}O)$ and $36$ molecules of $ATP$ is bought as an end-product, when six molecules of glucose $({C_6}{H_{12}}{O_6})$ is reacted with six molecules of oxygen $({O_2})$.

Hence, the correct answer is option ‘A’.

Note: Another type of respiratory is acknowledged as Anaerobic Respiration. In this process, respiration takes place with the absence of oxygen in which the chemical bonds in glucose are in part broken to acquire less strength and Carbon dioxide. This process is additionally acknowledged as intramolecular respiration and it occurs in organisms like parasitic worms, sure micro organisms and yeast.