Cellular Respiration Pathway Quiz
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Questions and Answers

What is the purpose of the deamination process in the breakdown of proteins?

  • To convert the carbon compound into pyruvate
  • To add the amino group to the Krebs cycle
  • To remove the amino group from the carbon compound (correct)
  • To release energy from the carbon compound

Which stage of aerobic respiration occurs in the mitochondrial matrix?

  • Glycolysis
  • Krebs cycle (correct)
  • Link reaction
  • Oxidative phosphorylation

What is the role of Acetyl CoA in aerobic respiration?

  • It enters the Krebs cycle (correct)
  • It is a product of glycolysis
  • It is a cofactor for enzymes in the electron transport chain
  • It is used in oxidative phosphorylation

Which stage of aerobic respiration is responsible for the majority of ATP production?

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

What is the purpose of the link reaction in aerobic respiration?

<p>To convert pyruvate into Acetyl CoA (B)</p> Signup and view all the answers

How does the process of chemiosmosis contribute to ATP production in aerobic respiration?

<p>It uses the energy released from the electron transport chain to pump protons across the inner mitochondrial membrane (D)</p> Signup and view all the answers

Which process directly links chemiosmosis to the transport of ions across cell membranes?

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

What is the primary role of the Krebs cycle in cellular respiration?

<p>To oxidize acetyl-CoA and generate NADH and FADH2 (C)</p> Signup and view all the answers

Which of the following is the primary source of electrons for the electron transport chain?

<p>NADH and FADH2 (D)</p> Signup and view all the answers

Which process is directly coupled to the synthesis of ATP during oxidative phosphorylation?

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

What is the primary function of acetyl-CoA in cellular respiration?

<p>To serve as the entry point for the Krebs cycle (C)</p> Signup and view all the answers

Which of the following is a direct product of the Krebs cycle?

<p>NADH and FADH2 (B)</p> Signup and view all the answers

What is the purpose of the Krebs cycle in aerobic respiration?

<p>To generate reduced coenzymes and release carbon dioxide (A)</p> Signup and view all the answers

What is the role of acetyl-CoA in the Krebs cycle?

<p>Acetyl-CoA combines with a four-carbon molecule to form a six-carbon molecule that enters the Krebs cycle (D)</p> Signup and view all the answers

What is the purpose of the electron transport chain in oxidative phosphorylation?

<p>To generate proton gradients across the inner mitochondrial membrane (D)</p> Signup and view all the answers

What is the role of chemiosmosis in the production of ATP during oxidative phosphorylation?

<p>Chemiosmosis is the movement of protons across the inner mitochondrial membrane, which is coupled to the synthesis of ATP (B)</p> Signup and view all the answers

How many ATP molecules are directly produced in the Krebs cycle through substrate-level phosphorylation?

<p>1 ATP (A)</p> Signup and view all the answers

What is the final electron acceptor in the electron transport chain during oxidative phosphorylation?

<p>Oxygen (O2) (A)</p> Signup and view all the answers

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