Question

for each of the following biological molecules, indicate whether the molecule is primarily hydrophobic or hydrophilic.
molecule a chemical structure diagram
molecule b chemical structure diagram
molecule c chemical structure diagram
molecule d chemical structure diagram

molecule a choose
molecule b choose
molecule c choose
molecule d choose

Explanation:

• Molecule A: Likely a sugar (e.g., glucose derivative) with multiple -OH groups, so hydrophilic.
• Molecule B: Amino acid (has -OH, -NH₂, -COOH), polar groups make it hydrophilic.
• Molecule C: Nucleotide (phosphate, sugar, base) with charged phosphate and -OH, hydrophilic.
• Molecule D: Long hydrocarbon chain (fatty acid - like), non - polar, so hydrophobic.

Answer:

• Molecule A: Hydrophilic
• Molecule B: Hydrophilic
• Molecule C: Hydrophilic
• Molecule D: Hydrophobic