All the living organisms are basically made up of C, N, S, P, H and O. How do they enter the living forms? Discuss.
C, N, S, P, H and O are the basic components of various biomolecules. Living being are made up of numerous biomolecules. Most of these components come to the living world via plants. Carbon comes through photosynthesis. Nitrogen is fixed in soil by nitrogenfixing bacteria so that plants can absorb nitrogenous compounds. Sulphur and phosphorus are available as minerals in soil and are absorbed by plant; along with water. Hydrogen and oxygen enter in the plants when they absorb water. Animal also obtain hydrogen and oxygen when they drink water. Oxygen is also taken up by living beings during inhalation. Finally, these elements are taken up by animals when they take food either directly or indirectly from plants.
