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Energy and Chemical Bonds Quiz

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Questions and Answers

What is the Second Law of Thermodynamics state about entropy in a chemical reaction?

Entropy increases

Define Gibbs Free Energy.

Energy not lost to entropy available to do work

What does a negative ΔG value indicate in terms of a reaction?

Reaction will occur spontaneously

Explain the concept of coupled reactions in terms of energy.

Free energy from exergonic reactions drives endergonic reactions Signup and view all the answers

What is the role of ATP in cellular processes?

ATP provides energy for cellular processes Signup and view all the answers

How do cells regenerate ATP?

Combining ADP and Pi in an endergonic reaction Signup and view all the answers

What is the definition of energy?

Energy is defined as the ability to do work. Signup and view all the answers

What are the two types of energy described in the text?

The two types of energy are kinetic energy (the energy of motion) and potential energy (stored energy). Signup and view all the answers

What is the bond energy?

The bond energy is the amount of energy needed to break a bond or to form a bond. Signup and view all the answers

What is the relationship between the first law of thermodynamics and chemical bonds?

The first law of thermodynamics states that energy is absorbed to break chemical bonds during a reaction. Signup and view all the answers

How does the second law of thermodynamics apply to living organisms?

Living organisms appear to defy the second law of thermodynamics, which states that the release of unusable energy increases the disorder or entropy of a system, because living organisms are highly structured. Signup and view all the answers