Multiple Choice
In human blood plasma, which protein is the most abundant by mass?
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1. Introduction to Biochemistry
Proteins
Multiple Choice
Which of the following is a function of protein macromolecules in cells?
A
Catalyzing biochemical reactions as enzymes
B
Storing genetic information as the primary cellular blueprint
C
Serving as the main long-term energy storage molecule in animals
D
Forming the phospholipid bilayer that acts as the main structural component of membranes
Verified step by step guidance1
Understand the primary roles of macromolecules in cells: proteins, nucleic acids, lipids, and carbohydrates each have distinct functions.
Recall that proteins serve many functions including catalyzing biochemical reactions, structural support, transport, and signaling.
Recognize that enzymes are proteins that act as biological catalysts, speeding up biochemical reactions without being consumed.
Note that storing genetic information is the role of nucleic acids (DNA and RNA), not proteins.
Remember that long-term energy storage in animals is primarily done by lipids (like fats), and the phospholipid bilayer is formed by lipids, not proteins.
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