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The document describes three different molecules: sugar, triglyceride, and cholesterol. It asks questions about their polarity, precursor of bile salts, and activation by phosphorylation. **Molecule 1 (Sugar):** A cyclic structure with multiple hydroxyl groups (-OH) attached. **Molecule 2 (Trigl...

The document describes three different molecules: sugar, triglyceride, and cholesterol. It asks questions about their polarity, precursor of bile salts, and activation by phosphorylation. **Molecule 1 (Sugar):** A cyclic structure with multiple hydroxyl groups (-OH) attached. **Molecule 2 (Triglyceride):** A long chain structure consisting of multiple repeating units. **Molecule 3 (Cholesterol):** A complex cyclic structure with various functional groups. **Questions and Answers:** **17. Of the following molecules, indicate which one is polar:** - The question is about which molecule is polar. **18. Of the previous molecules, indicate which one is the precursor of bile salts:** - The question is about which molecule is a precursor of bile salts. **19. Of the previous molecules, indicate which one is activated by phosphorylation:** - The question is about which molecule is activated by phosphorylation. **Important Note:** The document doesn't provide answers to the questions regarding which molecule is polar, a precursor, or activated by phosphorylation. The molecule structures are provided for reference.