One example of a stage 3 reaction in the heterotrophic breakdown of food molecules is:the intramitochondrial digestion of fatty acids into carbon dioxide and waterthe intracellular digestion of glucose monomers into pyruvatethe intracellular digestion of some amino acids into NH4+ and pyruvatethe extracellular digestion of polypeptides into amino acidsthe extracellular digestion of triglycerides into fatty acids and glycerol

Digestion is the process of breakdown of large food particles into smaller fragments. The process yields the body with energy (in the form of ATP) and also with building blocks that can be used to synthesize larger molecules.Digestion can be divided into various stages based on different parameters.Digestion can be divided into 3 stages based on the site where it occurs.Stage 1 : Extracellular digestion, which takes place in the buccal cavity, stomach and intestinal lumen.Stage 2 : Intracellular digestion, which takes place in the cytosol of cells.Stage 3 : Intraorganellar digestion, which takes place inside an oragnelle like mitochondria. Intramitochondrial digestion is hence stage 3 digestion.The correct option is; the intramitochondrial digestion of fatty acids into carbon dioxide and water.

Answered: One example of a stage 3 reaction in…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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One example of a stage 3 reaction in the heterotrophic breakdown of food molecules is:

the intramitochondrial digestion of fatty acids into carbon dioxide and water
the intracellular digestion of glucose monomers into pyruvate
the intracellular digestion of some amino acids into NH₄⁺ and pyruvate
the extracellular digestion of polypeptides into amino acids
the extracellular digestion of triglycerides into fatty acids and glycerol

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