Multiple Choice
Which of the following foods is the best example of a lean protein source (high protein with relatively low fat)?
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1. Introduction to Biochemistry
Proteins
Multiple Choice
Which of the following is a function commonly performed by protein macromolecules in cells?
A
Forming the lipid bilayer that acts as the primary barrier of cell membranes
B
Storing genetic information as the primary hereditary material
C
Serving as the main long-term energy storage molecule in animals
D
Catalyzing biochemical reactions as enzymes
Verified step by step guidance1
Identify the primary functions of different macromolecules in cells: proteins, lipids, carbohydrates, and nucleic acids.
Recall that proteins perform diverse roles including catalysis, structural support, transport, signaling, and regulation.
Understand that the lipid bilayer is primarily formed by lipids, not proteins, serving as the cell membrane's barrier.
Recognize that genetic information is stored in nucleic acids (DNA and RNA), not proteins.
Note that long-term energy storage in animals is mainly through lipids (like triglycerides), while proteins mainly catalyze biochemical reactions as enzymes.
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