red blood cells, oxygen, and white blood cells
Glucose is a product of photosynthesis and a reactant in cellular respiration.
It is oygen
Cellular respiration, or aerobic cellular respiration, is exergonic because energy is released from the breakdown of glucose and therefore the products have less energy then the starting substance.
If by respiration you mean breathing, the substance coming in is oxygen.
Adenosine Triphosphate (ATP)ATP
oxygen
The substance that returns to the air through the process of cellular respiration is carbon dioxide. In cellular respiration, glucose is broken down to produce energy, carbon dioxide, and water. The carbon dioxide produced is released into the air when we exhale.
ATP
The independent variable in cellular respiration experiments is usually the substance that is being manipulated or changed, such as the type of substrate or the presence of inhibitors. It is what researchers control and manipulate to observe its effect on cellular respiration rates.
Glucose is the primary substance that is oxidized during cellular respiration. It is broken down in a series of metabolic reactions to produce ATP, the energy currency of cells, through the process of oxidation.
2 pyruvic acid
Towards the beginning of cellular respiration oxygen forms many bonds that create sugars, so two of the elements would be carbon and hydrogen. However oxygen molecules also bonds with H+ ions around the end of cellular respiration to form water.