Which one of the following organic compounds is correctly identified along with its related function?
Correct answer: A. Lecithin - A component of cell membranes
- A. Lecithin - A component of cell membranes
- B. Adenine - A nucleotide that makes up nucleic acids
- C. Triglyceride - Major source of energy
- D. Uracil - A component of DNA
Explanation
The correct answer is A: Lecithin. Lecithin is a phospholipid that is essential for the structure and functionality of cell membranes, allowing cells to maintain their integrity and facilitate communication. Option B is incorrect because adenine, while a component of nucleotides in nucleic acids, is not a nucleotide by itself. Option C, while referring to triglycerides correctly as a source of energy, is vague and misleading since it does not specify the entire structure of triglycerides. Option D is incorrect because uracil is not a component of DNA; it is found in RNA instead, where it replaces thymine.
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