Biology CLEP Prep Practice Exam

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Prepare for the Biology CLEP Test with comprehensive flashcards and multiple choice questions. Each question comes with explanations and hints to ensure a full understanding. Boost your exam readiness today!

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 type of molecule is primarily responsible for accepting and transferring electrons in metabolic reactions?

Proteins
Lipids
ATP
DNA

The correct answer is: Proteins

Proteins are the most diverse and versatile molecules in living organisms, and they play a crucial role in metabolic reactions. While lipids are important for energy storage and cell structure, they are not directly involved in accepting and transferring electrons in metabolic reactions. ATP, or adenosine triphosphate, is the energy currency of cells and is involved in transferring energy, but not electrons. DNA, or deoxyribonucleic acid, is responsible for storing genetic information and is not directly involved in metabolic reactions. Therefore, A is the correct answer as proteins have specific structures and functions that allow them to participate in and facilitate electron transfer in metabolic reactions.