Which one of the following structural formulae of two organic compounds is correctly identified along with its related function?
Correct answer: A. A: Lecithin - A component of cell membrane
- A. A: Lecithin - A component of cell membrane
- B. B: Adenine - A nucleotide that makes up nucleic acids
- C. A: Triglyceride - Major source of energy
- D. B: Uracil - A component of DNA
Explanation
A is the formula of Lecithin. Lecithin is a phospholipid and is the component of the cell membranes. B is the formula of adenine which is a nitrogenous base not a nucleotide.
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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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