Most abundant element present in protoplasm:

The most abundant element present in protoplasm is carbon (C).

Explanation:

Protoplasm is the living substance that makes up the cells of all living organisms. It is composed of various elements such as carbon (C), hydrogen (H), oxygen (O), nitrogen (N), sulfur (S), and phosphorus (P). Among these elements, carbon is the most abundant element present in protoplasm.

Carbon is the backbone of all organic molecules such as carbohydrates, lipids, proteins, and nucleic acids, which are the building blocks of life. Carbon has the unique ability to form covalent bonds with other carbon atoms and with other elements, allowing for the formation of complex structures and diverse molecular configurations.

The abundance of carbon in protoplasm is due to its versatility and importance in the structure and function of living organisms. Carbon is involved in various metabolic processes such as respiration, photosynthesis, and biosynthesis. It is also essential for the formation of DNA, RNA, and ATP (adenosine triphosphate), which are crucial for the genetic information and energy storage of cells.

In conclusion, carbon is the most abundant element present in protoplasm due to its importance in the structure and function of living organisms. Its versatility and ability to form complex structures and diverse molecular configurations make it an essential element for life.

As water is the most abundant inorganic molecule in cell, the protoplasm is manly made of water. Also All the major organic compounds have C,H,O as building blocks in all of them. oxygen makes up about 65% of the mass of cell, and carbon only 18.5%. So,answer is oxygen....