Explanation:

Distinguish between:-

a) INSPIRATION and Expiration

Inspiration is the intake of the air into the lungs. Expiration is the EXPULSION of the air out of the lungs. Inspiration is an active process. Expiration is a passive process.

b) Aerobic and Anaerobic respiration

The breakdown of glucose in the presence of oxygen to produce more amount of energy is called as aerobic respiration. The breakdown of glucose in the ABSENCE of oxygen to produce energy is called as anaerobic respiration. 

c) Respiration and Combustion

The difference between respiration and combustion is quite apparent when you realize that “chemically,” it is the same thing. However, certain processes and enzymes in our body that REGULATE this process of releasing energy so that our food does not spontaneously undergo combustion like fuel in ROCKETS or automobiles. 

d) Photosynthesis and Respiration

Photosynthesis converts carbon dioxide and water into oxygen and glucose. Glucose is used as food by the plant and oxygen is a by-product. Cellular respiration converts oxygen and glucose into water and carbon dioxide. Water and carbon dioxide are by- products and ATP is energy that is transformed from the process.