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 energy is released during the combustion of organic molecules?

  1. Chemical

  2. Heat

  3. Kinetic

  4. Electrical

The correct answer is: Heat

This is because combustion reactions result in the release of a large amount of heat energy. While organic molecules contain chemical energy, this energy is converted into heat during combustion. Kinetic energy refers to the energy of motion and is not directly related to the combustion of organic molecules. Electrical energy requires the movement of electrons, which is not a characteristic of the combustion process.