Cold sores - painful sores on the lips and around the mouth, caused by a virus. Canker sores - painful sores in the mouth, caused by bacteria or viruses. Thrush - a yeast infection that causes white patches in your mouth. Leukoplakia - white patches of excess cell growth on the cheeks, gums or tongue, common in smokers.
Metabolism is a combination of chemical reactions that are spontaneous and release energy and chemical reactions that are non-spontaneous and require energy in order to proceed. Living organisms must take in energy via food, nutrients, or sunlight in order to carry out cellular processes.
ATP is a major form of energy in organisms. It is important, because organisms require it for life, and as it is made in cellular respiration, it is an important product, beca â¦ use it is necessary for life.1  The Five Major Parts of the Brain At its most basic, the brain controls the body.TP is a major form of energy in organisms. It is important, because organisms require it for life, and as it is made in cellular respiration, it is an important product, beca â¦ use it is necessary for life.