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Ch. 5 - Microbial Metabolism
Bauman - Microbiology with Diseases by Taxonomy 6th Edition
Bauman6th EditionMicrobiology with Diseases by TaxonomyISBN: 9780134832302Not the one you use?Change textbook
Chapter 5, Problem 7

For the phrase given below, indicate the type of metabolism referred to, using the following choices:
a. Anabolism only
b. Both anabolism and catabolism (amphibolic)
c. Catabolism only


Includes metabolism

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1
Step 1: Understand the definitions of the key terms: Anabolism refers to the set of metabolic pathways that construct molecules from smaller units, requiring energy input. Catabolism refers to the breakdown of molecules into smaller units, releasing energy. Amphibolic metabolism involves pathways that function in both anabolism and catabolism.
Step 2: For each phrase or metabolic process given in questions 1–7, identify whether it involves building molecules (anabolism), breaking down molecules (catabolism), or both processes (amphibolic).
Step 3: Use the following classification to assign the correct type of metabolism: a) anabolism only if the process solely builds complex molecules, b) both anabolism and catabolism (amphibolic) if the process includes pathways that both synthesize and degrade molecules, c) catabolism only if the process solely breaks down molecules to release energy.
Step 4: Carefully analyze the context of each phrase to determine if energy is consumed (anabolism), released (catabolism), or if the pathway serves dual roles (amphibolic).
Step 5: Record your answers for each phrase by matching them to the correct letter choice (a, b, or c) based on your analysis.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Anabolism

Anabolism refers to the set of metabolic pathways that build complex molecules from simpler ones, requiring energy input. It is essential for cell growth, repair, and synthesis of macromolecules like proteins and nucleic acids.
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Catabolism

Catabolism involves the breakdown of complex molecules into simpler ones, releasing energy stored in chemical bonds. This energy is often captured as ATP, which cells use to power various functions.
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Amphibolic Metabolism

Amphibolic pathways serve dual roles in metabolism, functioning in both anabolism and catabolism. These pathways, such as the citric acid cycle, help cells efficiently manage energy production and biosynthesis.
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