Glycolysis and Pyruvate Metabolism Quiz
28 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Which molecule removes COOH from pyruvate in the mechanism of action of PDH complex?

  • CoASH
  • Lipoamide
  • FAD
  • Thiamine pyrophosphate (TPP) (correct)

What is the covalent modification that renders E1 of the PDH complex inactive?

  • Ubiquitination
  • Phosphorylation (correct)
  • Acetylation
  • Methylation

What inhibits the PDH complex in an increased energy situation?

  • NAD+
  • ATP (correct)
  • AMP
  • CoA

How is the TCA cycle regulated at 3 exergonic steps?

<p>By substrate availability and accumulation of product (D)</p> Signup and view all the answers

Which pathway is important for providing NADPH for synthetic reactions?

<p>Hexose mono phosphate shunt (HMP-shunt) (A)</p> Signup and view all the answers

Where does the Electron Transport System (ETS) take place?

<p>Mitochondrial membrane (D)</p> Signup and view all the answers

What is the purpose of the Hexose mono phosphate shunt (HMP-shunt)?

<p>Produce NADPH (C)</p> Signup and view all the answers

Which molecule is used for detoxification of drugs and carcinogens?

<p>NADPH (B)</p> Signup and view all the answers

Where does the majority of ATP synthesis occur in cellular respiration?

<p>Electron Transport Chain (C)</p> Signup and view all the answers

Which of the following inhibits the flow of H+ through ATP synthase?

<p>Oligomycin (C)</p> Signup and view all the answers

What is the byproduct of metabolism that has to be detoxified by glutathione peroxidase?

<p>Hydrogen peroxide (C)</p> Signup and view all the answers

Which enzyme is involved in the reduction of oxygen to water in the Electron Transport Chain?

<p>Cytochrome oxidase (D)</p> Signup and view all the answers

Which of the following is a synthetic uncoupler of the Electron Transport Chain?

<p>2,4-dinitrophenol (A)</p> Signup and view all the answers

What is the purpose of the pentose phosphate pathway?

<p>Produce NADPH (A)</p> Signup and view all the answers

Where does the oxidative burst by phagocytic cells to kill microbes occur?

<p>Spleen (C)</p> Signup and view all the answers

Which molecule is involved in the reduction of hydrogen peroxide in the cell?

<p>NADPH (D)</p> Signup and view all the answers

Which molecule is produced in the Hexose Mono Phosphate (HMP) pathway for the reduction of hydrogen peroxide?

<p>NADPH (D)</p> Signup and view all the answers

Where does the majority of ATP synthesis occur in cellular respiration?

<p>Electron Transport System (A)</p> Signup and view all the answers

What is the purpose of the Electron Transport System (ETS) in cellular respiration?

<p>To produce ATP (B)</p> Signup and view all the answers

Which of the following is a synthetic uncoupler of the Electron Transport Chain (ETC)?

<p>2,4-dinitrophenol (D)</p> Signup and view all the answers

Which enzyme is involved in the reduction of oxygen to water in the Electron Transport Chain (ETC)?

<p>Cytochrome oxidase (C)</p> Signup and view all the answers

What is the purpose of the Hexose Mono Phosphate (HMP) pathway?

<p>To produce NADPH and Ribose-5-PO4 (D)</p> Signup and view all the answers

Which molecule is used for reductive biosynthesis such as fatty acid and cholesterol synthesis?

<p>NADPH (C)</p> Signup and view all the answers

What inhibits the flow of H+ through ATP synthase in the Electron Transport Chain (ETC)?

<p>Oligomycin (D)</p> Signup and view all the answers

Where does the oxidative burst by phagocytic cells to kill microbes occur?

<p>Phagolysosome (A)</p> Signup and view all the answers

What is the covalent modification that renders E1 of the Pyruvate Dehydrogenase (PDH) complex inactive?

<p>Phosphorylation (A)</p> Signup and view all the answers

Which molecule is involved in the reduction of hydrogen peroxide in the cell?

<p>NADPH (A)</p> Signup and view all the answers

Where does the oxidative burst by phagocytic cells to kill microbes occur?

<p>Phagolysosome (B)</p> Signup and view all the answers

More Like This

Use Quizgecko on...
Browser
Browser