Macromolecules Practice Test Questions &
Answers
Which of the following are one of the four major groups of macromolecules found in living
organisms? - answerCarbohydrates, lipids, proteins, nucleic acids
Polymers of polysaccharides, nucleic acids, and proteins are all synthesized from monomers...
Humans can digest starch but not cellulose because - answer✔humans have enzymes that can
hydrolyze the alpha glycosidic linkages
Saturated fatty acids - answer✔have a higher ratio of hydrogen to carbon than do unsaturated
fatty acids
A protein can best be described as a - answer✔polymer of amino acids
The 20 different amino acids found in polypeptides exhibit different chemical and physical
properties because of different - answer✔side chains (R groups)
The bonding of two amino acid molecules to form a larger molecule requires which of the
following? - answer✔removal of a water molecule
Polysaccharides, nucleic acids, and proteins are similar in that they - answer✔are synthesized
from monomers by dehydration reactions
Refer to Figure 5.6. Which bonds are created during the formation of the primary structure of a
protein? - answer✔peptide bonds
What type of bond is most critical in the formation of secondary structure in a protein? -
answer✔hydrogen bonds
Which type of interaction stabilizes the alpha (á) helix and the beta (â) pleated sheet structures of
proteins? - answer✔hydrogen bonds
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