Question

Select the odd one out. Give reason for your choice:

• A. Ammonia
• B. Glucose
• C. Carbon dioxide
• D. Lungs

Answer 1

The correct option is A

Ammonia

The correct option is A:

Explanation of the correct option:

1. Ammonia is a colorless, pungent gas which contains central nitrogen bonded with hydrogen atoms.
2. Ammonia is not involved in the process of respiration.

Explanation for the incorrect options:

Option B:

1. Glucose is a six-carbon compound which is obtained from the food we ingest.
2. Glucose is broken down in the cells in the process of respiration for the release of energy in the form of ATP.

Option C:

1. During the process of respiration, glucose is broken down into carbon dioxide and water.
2. This leads to the formation of energy /ATP.
3. Hence, carbon dioxide is one of the products of the process of cellular respiration.

Option D:

1. Lungs are present in the thoracic cavity and are responsible for respiration in humans.
2. They also have a significant role in the protection of the body against infection from pathogens.

Final Answer: Ammonia is the odd one out.