Biology Regents Practice Exam

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Study for the Biology Regents Exam with our comprehensive quiz. Test your knowledge with multiple-choice questions, including hints and explanations. Prepare for success!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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What are organic compounds primarily used as building blocks for?

Water, DNA, and starches.
Proteins, DNA, and carbon dioxide.
Proteins, starches, and fats.
Oxygen, proteins, and carbohydrates.

The correct answer is: Proteins, starches, and fats.

Organic compounds serve as vital building blocks in biological systems, with proteins, starches, and fats being key components. Proteins are formed from amino acids, which are organic molecules, and play crucial roles in the structure and function of cells. Starches are polysaccharides made from glucose units and are an essential source of energy as well as a means of energy storage in plants. Fats, or lipids, are also constructed from organic compounds and serve both as energy storage and as important structural components of cell membranes. The focus on proteins, starches, and fats underscores the significance of organic compounds in the formation of macromolecules essential for life. This makes the identified option particularly relevant when discussing the foundational roles organic compounds play within biological systems.