To determine the general description of the reaction that occurs in the first step of the citric acid cycle. Concept introduction: Citric acid cycle is the third stage of the biochemical energy production process. This stage is included in the common metabolic pathway because the reactions in this stage are same for different kinds of food. In the citric acid cycle, the acetyl unit produced in the second stage of the biochemical energy production process is oxidized. The final product of the citric acid cycle is CO 2 and energy. Some part of the energy is lost as heat or some part is further carried by NADH or FADH 2 in the fourth stage.

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Chapter 23.7, Problem 2QQ

Interpretation Introduction

Interpretation: To determine the general description of the reaction that occurs in the first step of the citric acid cycle.

Concept introduction: Citric acid cycle is the third stage of the biochemical energy production process. This stage is included in the common metabolic pathway because the reactions in this stage are same for different kinds of food.

In the citric acid cycle, the acetyl unit produced in the second stage of the biochemical energy production process is oxidized. The final product of the citric acid cycle is CO₂ and energy. Some part of the energy is lost as heat or some part is further carried by NADH or FADH₂ in the fourth stage.

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