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Preview questions
1. Which of the following is a carbohydrate?
Glucose · Amino acid · Fatty acid · Nucleotide
2. What are proteins primarily made of?
Monosaccharides · Nucleotides · Amino acids · Fatty acids
3. Which biomolecule serves as the main source of energy for living organisms?
Proteins · Lipids · Carbohydrates · Nucleic acids
4. What type of bond links amino acids together?
Ionic bond · Hydrogen bond · Peptide bond · Covalent bond
5. Which of the following is NOT a function of lipids?
Energy storage · Insulation · Catalysis · Cell membrane structure
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