10 Questions
What is the function of the Pyruvate dehydrogenase complex in the mitochondrial matrix?
Transfer pyruvate to acetyl-CoA
Which statement accurately describes the TCA cycle (Krebs cycle)?
Organic substrates are completely degraded to CO2 & H2O.
Which coenzyme is involved in the oxidative decarboxylation reaction that converts pyruvate to acetyl-CoA?
NADH
What is the role of H+ in the process of carrying pyruvate to the mitochondrial matrix?
It neutralizes the negative charge of pyruvate.
In aerobic respiration, what is kept in the form of ATP?
Energy released from organic substrates
Which of the following is true about the Oxidation of Pyruvate to Acetyl-CoA reaction?
It creates 1 CO2 and NADH.
Which enzyme is responsible for performing the conversion of pyruvate to acetyl-CoA in the mitochondrial matrix?
(PDH) Pyruvate Dehydrogenase Complex
What does the Pyruvate dehydrogenase complex consist of?
(Three enzymes connected non-covalently) Proteins
What is the role of molecular O2 in aerobic respiration?
It is the last electron acceptor.
Where does the TCA cycle (Krebs cycle) take place?
In the mitochondrial matrix.
Test your knowledge on the Pyruvate Dehydrogenase Complex, including its sub-enzymes and coenzymes such as Thiamine pyrophosphate, Lipoic acid, FAD, and CoA. Identify the roles of each sub-enzyme and coenzyme in the complex.
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