What are the main components of protoplasm in living cells?
Lipids, nucleic acids, and carbohydrates
Proteins, carbohydrates, and fats
Proteins, lipids, and nucleic acids
Carbohydrates, lipids, and nucleic acids
The main components of protoplasm in living cells are proteins, lipids, and nucleic acids. Protoplasm refers to the living content within the cell that includes the cytoplasm and the nucleus. Proteins are essential for various cellular functions, including enzyme activity, cell structure, and signaling. Lipids, such as phospholipids, form the cell membrane and act as a barrier between the cell and its environment. Nucleic acids, including DNA and RNA, carry genetic information and play a crucial role in protein synthesis and cellular processes. While carbohydrates are also important biomolecules, they are not considered as the main components of protoplasm.
Option 3 is the correct answer.