The basic element of all organic compounds is:
Correct answer: D. Carbon
- A. Oxygen
- B. Nitrogen
- C. Hydrogen
- D. Carbon
Explanation
The correct answer is carbon. Carbon is unique in its ability to form stable covalent bonds with other elements, including itself, which allows it to serve as the framework for organic compounds. While oxygen, nitrogen, and hydrogen are important in organic chemistry, they do not form the backbone of organic molecules like carbon does.
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About Biological Molecules
The chapter covers water's polarity and biological roles, carbohydrates, lipids, proteins and nucleic acids, including their monomers, bonds, structures and functions. It also distinguishes RNA from DNA and explains conjugated molecules such as glycoproteins, glycolipids and nucleoproteins, which combine organic molecules with a non-protein component.
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