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Which of the following is false?
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2. Chemical Components of Cells
Four Classes of Macromolecules
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Which class of macromolecule most directly regulates cell processes by acting as enzymes, receptors, and signaling molecules?
A
Lipids
B
Carbohydrates
C
Nucleic acids
D
Proteins
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Identify the four main classes of macromolecules: lipids, carbohydrates, nucleic acids, and proteins.
Recall the primary functions of each class: lipids mainly store energy and form membranes; carbohydrates provide energy and structural support; nucleic acids store and transmit genetic information.
Understand that proteins have diverse roles including acting as enzymes to catalyze biochemical reactions, receptors to receive signals, and signaling molecules to communicate within and between cells.
Recognize that because proteins perform these regulatory and functional roles, they most directly regulate cell processes.
Conclude that the class of macromolecules that most directly regulates cell processes by acting as enzymes, receptors, and signaling molecules is proteins.
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