1. Define the laws of thermodynamics. Include an example to support your definition.
2. What is Gibbs free energy? What are consequences for a biochemical reaction when Gibbs free energy is negative? Explain the role of enzymes when Gibbs free energy is negative and when it is positive.
3. Adenosine triphosphate (ATP) has been called the currency of all living things. Explain what this statement means.
4. What is an absorption spectra? Explain why a green leaf looks green. Is it the same reason a red leaf looks red? Explain your answer.