pH can be regulated by the collecting duct of the kidney. Collecting duct play an important role in the maintenance of pH and ionic balance of the blood by the selective secretion of hydrogen ions (protons) and potassium ions. Collecting duct is long duct which extends from the cortex of the kidney to the inner part of the medulla. In the collecting duct, a large amount of water reabsorption occurs.
The sun is the most basic source of energy for all living beings. It supports photosynthesis in plants and algae that is the main reaction for producing energy rich compounds like carbohydrates etc. These compounds are utilized by all life on Earth to stay alive.
