Multiple Choice
The fossil record supports which of the following descriptions of the evolution of life on Earth?
1. A Review of General Chemistry
Intro to Organic Chemistry
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Which of the following organic compounds is primarily responsible for long-term energy storage in living organisms?
A
Nucleic acids
B
Proteins
C
Lipids
D
Carbohydrates
Verified step by step guidance1
Begin by understanding the role of each type of organic compound in living organisms. Nucleic acids are primarily involved in genetic information storage and transfer, not energy storage.
Consider proteins, which are mainly responsible for structural functions, catalysis of biochemical reactions (as enzymes), and other roles, but not primarily for long-term energy storage.
Examine carbohydrates, which are used for short-term energy storage and quick energy release, such as glucose in cellular respiration.
Focus on lipids, which are known for their role in long-term energy storage. Lipids, such as triglycerides, store energy efficiently due to their high energy density and are used by organisms to store energy for extended periods.
Conclude that lipids are the organic compounds primarily responsible for long-term energy storage in living organisms, as they can be stored in adipose tissue and provide energy when needed over time.
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