Define and contrast anabolic and catabolic reactions and give an example of each. Correlate the following terms and describe how they relate to each other: endergonic/exergonic, an... Define and contrast anabolic and catabolic reactions and give an example of each. Correlate the following terms and describe how they relate to each other: endergonic/exergonic, anabolic/catabolic, condensation/hydrolysis. Identify the activation energy, change in free energy (ΔG), and transition state on a graph of the free energy change of a reaction. Identify whether a reaction is endergonic or exergonic using a graph of the free energy change of a reaction. Draw how a graph of the free energy change of a reaction is altered in the presence of an enzyme and describe the effect on the rate of the reaction and overall change in free energy (ΔG) of the reaction. Identify the location of an active site on an enzyme and explain the role of the active site. Contrast allosteric inhibition versus competitive inhibition. Describe the process of negative feedback inhibition. Predict how alterations in enzyme shape could affect enzyme function. Predict the potential consequence of a nonfunctional enzyme for a cell and discuss the role of enzyme regulation in determining what reactions occur within a cell. Describe the role of cofactors and coenzymes in enzyme function and contrast their structures.
Understand the Problem
The questions presented are asking for definitions, contrasts, and examples related to biochemical reactions, particularly focusing on anabolic and catabolic reactions, enzyme functions, inhibition types, and energy changes in reactions.
Answer
Anabolic (endergonic, builds) vs. catabolic (exergonic, breaks down) reactions; enzymes lower activation energy.
Anabolic reactions build up molecules and require energy (endergonic), e.g., photosynthesis. Catabolic reactions break down molecules and release energy (exergonic), e.g., cellular respiration. Enzymes lower activation energy and accelerate reactions without altering ΔG.
Answer for screen readers
Anabolic reactions build up molecules and require energy (endergonic), e.g., photosynthesis. Catabolic reactions break down molecules and release energy (exergonic), e.g., cellular respiration. Enzymes lower activation energy and accelerate reactions without altering ΔG.
More Information
Anabolic reactions often involve processes like protein synthesis, while catabolic reactions include glycolysis. Enzymes speed up reactions crucial for life without being consumed.
Tips
Confusing endergonic and exergonic reactions' energy flow is common; remember, endergonic needs energy influx, while exergonic releases energy.
Sources
- Chemical Reactions in Living Things - Biology LibreTexts - bio.libretexts.org
- Overview of Metabolic Reactions | Anatomy and Physiology II - courses.lumenlearning.com
- CH103 - Chapter 7: Chemical Reactions in Biological Systems - wou.edu
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