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Multiple Choice
Which of the following is one of the principal chemical compounds that living organisms use to store energy?
A
Glucose
B
Nicotinamide adenine dinucleotide (NAD+)
C
Adenosine triphosphate (ATP)
D
Cholesterol
Verified step by step guidance
1
Understand the role of energy storage in living organisms: Living organisms require energy to perform various functions, and they store this energy in specific chemical compounds.
Identify the common energy storage molecules: The primary molecules used by cells to store and transfer energy include glucose, ATP, and NAD+.
Recognize the function of ATP: Adenosine triphosphate (ATP) is known as the 'energy currency' of the cell. It stores energy in its high-energy phosphate bonds and releases it when these bonds are broken.
Differentiate between ATP and other molecules: While glucose is a source of energy, it is not the direct energy currency. NAD+ is involved in redox reactions and electron transport, not direct energy storage.
Conclude that ATP is the principal compound for energy storage: Based on its role in directly providing energy for cellular processes, ATP is the primary molecule used by living organisms to store and release energy.