Question

question 9 (1 point)
what makes lipids hydrophobic?
their polar structure
their large size
their ability to form hydrogen bonds
their long hydrocarbon chains

Explanation:

Lipids are hydrophobic because of their long hydrocarbon chains. Hydrocarbon chains are non - polar. Water is a polar molecule. Non - polar substances do not interact well with polar substances. Polar structures (first option) would make a molecule hydrophilic (water - loving). Large size (second option) is not the reason for hydrophobicity. The ability to form hydrogen bonds (third option) is a property of polar or partially polar molecules and would make a molecule more likely to interact with water (hydrophilic).

Answer:

Their long hydrocarbon chains.