The most basic chemical element (1) is C, the basic elements are C, H, O, N, and the main elements are C, H, O, N, P, S..p, which are components of nucleic acid, phospholipid, NADP+, ATP and biofilm, and participate in many metabolic processes. If the content of Ca2+ in blood is too low, convulsions will occur, and if calcium carbonate is lacking in bones, osteoporosis will occur. K+ plays an important role in nerve excitation conduction and muscle contraction. When the blood potassium content is too low, the myocardial automatic rhythm is abnormal, leading to arrhythmia. K+ is related to the synthesis and transportation of sugar in photosynthesis.
The ratio of free water to bound water will affect metabolism. When the proportion of free water rises, the metabolism of organisms will be vigorous and grow rapidly. On the contrary, when free water is converted into bound water, metabolism is slow.
The material basis and basic unit of life.