Question

How does aerobic respiration relate to plants, animals, and humans?

Answer 1

Respiration is not just inhaling oxygen and exhaling out carbon dioxide, it is a chemical process that provides our body with energy in the form of ATP (ATP stands for Adenosine Triphosphate) to perform life processes like growth and repair of cells, protein synthesis, sending nerve impulses, and many more.

Complete answer:
Living organisms require energy to perform day to day activities. Energy is produced and stored in the body cell by either using oxygen or without oxygen. This process is called respiration. It is a chemical process that provides our body with energy in the form of ATP to perform life processes like protein synthesis, growth and repair of cells, sending nerve impulses, and many more. Respiration is of two types; aerobic respiration - As the name suggests, involves the use of air i.e. oxygen for the breakdown of a glucose molecule to release energy; Anaerobic respiration - break down of energy without oxygen.
The equation for respiration is:
${{\text{C}}_{\text{6}}}{{\text{H}}_{\text{12}}}{{\text{O}}_{\text{6}}}\text{+ 6}{{\text{O}}_{\text{2}}}\to \text{6C}{{\text{O}}_{\text{2}}}\text{+ 6}{{\text{H}}_{\text{2}}}\text{O + ATP}$
Here, one molecule of glucose in presence of oxygen is broken down into six molecules of carbon dioxide, six molecules of water, and energy.

Hence, we can say that aerobic respiration is related to plants, animals, and humans as they all require sugar and oxygen to produce energy.

Note:
Animals and humans get the sugar from the food that they eat from their surrounding, that is they are dependent on other animals and plants for food whereas plants prepare their own food by the process called photosynthesis, where the plant absorbs sunlight and carbon dioxide from the environment to prepare their own food.