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Multiple Choice
Which type of organic compound is primarily responsible for providing energy in biological systems?
A
Nucleic acids
B
Lipids
C
Carbohydrates
D
Proteins
Verified step by step guidance
1
Identify the primary macromolecules in biological systems: carbohydrates, lipids, proteins, and nucleic acids.
Understand the role of each macromolecule: Nucleic acids store and transfer genetic information, proteins perform a variety of functions including catalysis and structural roles, lipids are involved in long-term energy storage and membrane structure, and carbohydrates are primarily used for energy.
Recognize that carbohydrates are the main source of energy in most biological systems due to their ability to be quickly metabolized into glucose, which is used in cellular respiration.
Consider the process of cellular respiration, where glucose (a carbohydrate) is broken down to produce ATP, the energy currency of the cell.
Conclude that carbohydrates are the primary energy-providing organic compounds in biological systems, as they are efficiently converted into usable energy through metabolic pathways.