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Questions and Answers
What is the main function of the Pentose Phosphate Pathway?
What is the main function of the Pentose Phosphate Pathway?
- To reduce NADP+ to NADPH (correct)
- To generate multiple carbon sugars
- To supply electrons for the electron transport chain
- To produce pentoses from glucose-6-phosphate
Where does the Pentose Phosphate Pathway take place?
Where does the Pentose Phosphate Pathway take place?
- In the endoplasmic reticulum
- In the mitochondria
- In the cytoplasm parallel to glycolysis (correct)
- In the nucleus
What is the key difference between the oxidative and non-oxidative phases of the Pentose Phosphate Pathway?
What is the key difference between the oxidative and non-oxidative phases of the Pentose Phosphate Pathway?
- The oxidative phase generates NADPH, while the non-oxidative phase involves carbon shuffling (correct)
- The oxidative phase is reversible, while the non-oxidative phase is irreversible
- The oxidative phase occurs in the mitochondria, while the non-oxidative phase occurs in the cytoplasm
- The oxidative phase produces pentoses, while the non-oxidative phase reduces reactive oxygen species
What is the main purpose of NADPH produced in the Pentose Phosphate Pathway?
What is the main purpose of NADPH produced in the Pentose Phosphate Pathway?
What is one of the main uses of NADPH in cellular pathways?
What is one of the main uses of NADPH in cellular pathways?
What is the primary product generated in the Pentose Phosphate Pathway from glucose-6-phosphate?
What is the primary product generated in the Pentose Phosphate Pathway from glucose-6-phosphate?
Where does the Pentose Phosphate Pathway take place within the cell?
Where does the Pentose Phosphate Pathway take place within the cell?
What is the main function of the oxidative phase of the Pentose Phosphate Pathway?
What is the main function of the oxidative phase of the Pentose Phosphate Pathway?
What are the primary uses of NADPH in cellular pathways?
What are the primary uses of NADPH in cellular pathways?
What is the alternative name for the Pentose Phosphate Pathway?
What is the alternative name for the Pentose Phosphate Pathway?
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Study Notes
Pentose Phosphate Pathway Overview
- The main function of the Pentose Phosphate Pathway is to generate NADPH and pentoses from glucose-6-phosphate.
Location and Phases
- The Pentose Phosphate Pathway takes place in the cytosol of cells.
- The pathway has two phases: oxidative and non-oxidative.
- The key difference between the oxidative and non-oxidative phases is the generation of NADPH in the oxidative phase.
NADPH Production and Uses
- The main purpose of NADPH produced in the Pentose Phosphate Pathway is to provide reducing power for anabolic reactions.
- One of the main uses of NADPH in cellular pathways is in fatty acid synthesis.
- The primary uses of NADPH in cellular pathways include fatty acid synthesis, cholesterol synthesis, and glutathione regeneration.
Product Generation
- The primary product generated in the Pentose Phosphate Pathway from glucose-6-phosphate is pentoses and NADPH.
Alternative Name
- The Pentose Phosphate Pathway is also known as the Hexose Monophosphate Shunt.
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