Biology CLEP Prep Practice Exam

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Are you gearing up for the Biology CLEP exam? Prepare like a pro with our Biology CLEP Prep Practice Exam!

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!

Practice this question and more.

What type of molecule is used to transfer energy in metabolic reactions?

Proteins
Lipids
ATP
DNA

The correct answer is: ATP

ATP, or adenosine triphosphate, is a high-energy molecule used by cells to store and release energy. Proteins, lipids, and DNA are all important molecules involved in metabolic reactions, but ATP specifically serves as the primary energy carrier. Proteins and lipids can also be broken down for energy, but ATP is the main currency for cellular energy. DNA is primarily involved in the storage and replication of genetic information, and while it does play a role in metabolism, it is not directly involved in the transfer of energy. So, while all of these molecules are important for various cellular functions, ATP is the specific molecule used for energy transfer in metabolic reactions.