Questions and Answers
The regulation of ______ cycle involves three regulatory enzymes.
TCA
There are ______ regulatory enzymes in the TCA cycle.
three
______ synthase is one of the three regulatory enzymes.
Citrate
The TCA cycle is regulated by ______ synthase and other enzymes.
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______ is the first regulatory enzyme in the TCA cycle.
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The three regulatory enzymes in the TCA cycle include ______ synthase.
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Study Notes
Krebs Cycle Overview
- The Krebs cycle is the second of four processes necessary to extract energy from glucose.
Location and Process
- The Krebs cycle takes place within the mitochondrial matrix.
- Pyruvate is formed in the cytosol and imported into the mitochondria.
- Pyruvate is converted to acetyl-CoA and then imported into the mitochondrial matrix.
- Acetyl-CoA enters the citric acid cycle.
Function and Regulation
Amphibolic Function
- The TCA cycle has both anabolic and catabolic functions.
Anabolic Functions
- α-ketoglutarate is used for the synthesis of some non-essential amino acids.
- Succinyl CoA is used in heme synthesis.
Regulation of TCA Cycle
- There are three regulatory enzymes in the TCA cycle.
- One of the regulatory enzymes is citrate synthase.
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Description
This quiz covers the Krebs cycle, a process that plays a crucial role in extracting energy from glucose. Learn about the importance of the Krebs cycle in cellular respiration.
