You arrive late to a biological seminar.However,just as you enter the room,you hear the speaker referring to the "amino end" and the "carboxyl end" of a macromolecule.Immediately,you know that they are talking about a:
A)carbohydrate.
B)protein.
C)nucleic acid.
D)lipid.

Question

Quizplus · Accepted Answer

The terms "amino end" and "carboxyl end" refer to the ends of amino acid chains, which make up proteins. Carbohydrates do not have these ends, and nucleic acids have different functional groups at their ends (phosphate and hydroxyl groups). Lipids also do not have these ends as they are not made up of amino acids.

You Arrive Late to a Biological Seminar