List the elements that make up the basis of living organisms.

The elements necessary for the vital activity of cells and organs are called organogens.
The first group – absolute: C, O, H, C, N, Mn, K, S life support.
The second group is special: Si, Na, Ca, Fe, F, Mg, Sr, B, Zn, Cu, Br, J, necessary for many organisms.
The enzymes and hormones contain trace elements. Iodine in the thyroid gland, chromium in the pituitary gland of the brain, molybdenum in the kidneys and others. The state of human health depends on their content.
Conclusion: elements in the form of ions are involved in the construction of tissues, organs, and metabolism at all levels of life.