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A student is given a small amount of unknown tan-colored liquid substance. This unknown liquid is placed into a glass of water and mixed. Despite mixing, the tan liquid remains separated from the water and collects as a large droplet at the top. Which of the macromolecule groups is this liquid MOST likely to be a member of?

nucleic acids
proteins
lipids
carbohydrates

Respuesta :

MoSikder
The fact that they do not dissolve shows that it is a lipid. This is further supported by the fact that the liquid remains collect to form a giant droplet. This occurs as oil/lipids are hydrophobic and thus tend to collect in clumps. 
MissPhiladelphia
I think the correct answer from the choices listed above is the third option. The liquid, most likely would belong the group of lipids since this substance is immiscible with water or does not mic with water. Hope this answers the question. Have a nice day.