This diagram shows the metabolism of glucose in plants - how glucose can be made from starch, lipids and amino acids, and is used in the process of respiration. All cells require glucose for ...

Respiration is the cellular process of releasing energy from food. Aerobic respiration releases fifteen times more energy than fermentation.

This process, called photosynthesis ... such as glucose. Then, via respiration processes, cells use oxygen and glucose to synthesize energy-rich carrier molecules, such as ATP, and carbon dioxide ...

This process requires specialized organs such as the lungs or gills. This oxygen is used for cellular respiration and metabolism, a byproduct of which is carbon dioxide.