Honors Biology
Monkemeier
November 4, 2014 – November 17, 2014
Unit 3: Energy and Metabolism- Bioenergetics
Name ______________________________ Date __________________________
Unit 3: Bioenergetics (Energy and Metabolism) Study Guide
Text References:
Biology 8th edition – Raven, Johnson – Chapter 6 and pages 52-53
Biology 7th edition – Campbell, Reece – Chapter 8 and pages 78-85
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Define the term energy and distinguish between potential and kinetic energy.
Explain the flow of energy through the biosphere using biochemical pathways within explanation.
Explain the First Law of Thermodynamics and its relevance to living systems.
Why is heat a useless form of energy for living systems.
Explain the Second Law of Thermodynamics and its relevance to living systems.
Explain why energy flows through living systems as a series of oxidation and reduction reactions.
Distinguish between chemical energy and free energy. Provide examples of molecules that contain free
energy and molecules that contain chemical energy.
Utilize the Gibb’s Free Energy Equation to determine whether a chemical reaction is spontaneous or not
spontaneous.
Utilize the Gibb’s Free Energy Equation to determine whether a chemical reaction is endergonic or
exergonic.
Interpret a graphical representation of free energy vs. course of reaction to classify the reaction using
the following terms: spontaneous, nonspontaneous, endergonic, exergonic.
Explain how activation energy relates to reactants and to catalysts.
Explain why enzymes (organic catalysts) are able to speed up reaction rates.
Define and explain how the following terms are related: enzyme, active site, substrate, enzyme-substrate
complex.
Create a sketch of the Adenosine TriPhoshpate molecule and discuss the relative strengths of the bond
energies between each of the phosphates.
Define and explain how the following terms are related: ATP, hydrolysis, ADP, Dehydration synthesis,
AMP. Create a sketch that demonstrates how ATP stores and releases free energy for cellular use.
Explain the effects of each of the following environmental factors upon enzyme function: pH,
temperature, inhibitors, activators, enzyme cofactors.
Distinguish between competitive inhibition and noncompetitive inhibition. Provide examples of each.
Define and explain how the following terms are related and relevant to living systems: metabolism,
catabolism, anabolism.
Define the term biochemical pathway and explain the relevance of enzymes and metabolism.
Explain how feedback inhibition regulates some biochemical pathways.
Distinguish between the carbohydrates, proteins and lipids with respect to amount of energy per gram
and discuss the relevance of carbon – hydrogen bonds.
Distinguish between the following energy units: kilocalorie, calorie, and joule.
Determine the energy content of food sources using a calorimetry.
Related Labs and Activities:
- Famous Liver Enzyme Lab
- Determining the Energy Content of Food