Concept explainers
(a)
Interpretation:
The stage at which the forward reaction occurs in the common catabolic pathway is to be stated.
Concept Introduction:
Mitochondria have two membranes, inner and outer membranes. In the mitochondria, various catabolic pathways occurs. The mitochondria is present in most of the eukaryotic organisms. Eukaryotic organisms possess a nucleus which is covered by membranes. The examples of eukaryotic organisms are plants and human beings. On the other hand, prokaryotes do not possess a distinct nucleus.
(b)
Interpretation:
The steps at which reverse reaction occur is to be stated.
Concept Introduction:
The first sequence is citric acid cycle. It is also termed as Krebs cycle. Citric acid contains three −COOH groups. In the first step of Krebs cycle, the formation of citric acid occurs due to which it is also known as tricarboxylic acid.

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Chapter 27 Solutions
OWLv2 for Bettelheim/Brown/Campbell/Farrell/Torres' Introduction to General, Organic and Biochemistry, 11th Edition, [Instant Access], 1 term (6 months)
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