Cellular respiration and photosynthesis are closely related, as they are reciprocal processes. A simple summary of photosynthesis is the creation of carbohydrates through the combination of carbon dioxide and water with energy from the sun, with oxygen as a waste product. Cellular respiration is the use of oxygen to break down carbohydrates into water and carbon dioxide, releasing energy.Know More
Cellular respiration uses sugars, and animals which consume other forms of calories than carbohydrates, proteins and fats must first process them into a usable form. Cellular respiration is not the only way that heterotrophs gain energy from the environment, with both glycolysis and fermentation being independent of oxygen, but it is by far the most efficient.
The vast majority of species undergo cellular respiration, with a much smaller number engaging in photosynthesis. Nonetheless, photosynthesis is the main way that energy enters the biosphere, with the only exceptions being specialist organisms in extreme environments, such as deep-sea vents. Even the organisms that engage in photosynthesis, such as plants and algae, must conduct cellular respiration to support their own biological functions, since they cannot power those functions directly from sunlight. In these organisms, a portion of the carbohydrates created during photosynthesis is used in cellular respiration, with the remainder being used to build biological structures.Learn more about Biology
The main purpose of cellular respiration is to convert biochemical energy from nutrients into adenoside triphosphate, or ATP, a chemical energy needed by cells to perform certain functions. Muscle and brain nerve cells require energy that contains a high number of mitochondria to perform effectively.Full Answer >
Cellular respiration products are water, carbon dioxide, heat and adenosine triphosphate or ATP. This applies to aerobic respiration. For anaerobic respiration, cellular respiration products are alcohol or lactic acid, carbon dioxide and ATP.Full Answer >
Pyruvate is involved in several steps of cellular respiration including glycolysis, where it is the product of glucose being broken down, the Kreb's cycle uses the pyruvate to complete its process as well. During vigorous exercise, pyruvate is turned into lactate to give more energy to the oxygen-starved muscles.Full Answer >
According to the BBC, aerobic respiration requires oxygen in order to release energy from glucose for cellular use. Carbon dioxide and water are waste products of aerobic respiration. This process occurs in organelles called mitochondria, which are the energy producing parts of the cell.Full Answer >