Cellular Respiration and Energy Production Quiz
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Questions and Answers

What is the primary purpose of cellular respiration?

  • For growth and development
  • To maintain homeostasis
  • For the movement of materials
  • For the building/breaking down of molecules (correct)

In which step of cellular respiration does the oxidation of sugar occur?

  • Oxidative phosphorylation
  • Redox reactions
  • Citric acid cycle/Krebs cycle
  • Glycolysis (correct)

What does FADH2 represent in cellular respiration?

  • An electron carrier (correct)
  • A cofactor
  • An oxidized form of FAD
  • A redox enzyme

What is the function of coenzymes in cellular respiration?

<p>To assist in the catalysis of a reaction (B)</p> Signup and view all the answers

Which type of reaction involves one species being oxidized while another is reduced?

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

What is the main role of electron carriers in cellular respiration?

<p>To hold electrons and protons (A)</p> Signup and view all the answers

Where does glycolysis take place?

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

What is the purpose of the investment phase in glycolysis?

<p>To trap the substrate in the cell (B)</p> Signup and view all the answers

Which molecule is formed as a result of the phosphorylation of glucose by ATP in step 1 of glycolysis?

<p>Glucose 6-phosphate (A)</p> Signup and view all the answers

What happens to the dihydroxyacetone phosphate produced in step 4 of glycolysis?

<p>It is isomerized to form glyceraldehyde 3-phosphate (B)</p> Signup and view all the answers

Which molecule is oxidized in step 6 of glycolysis?

<p>Glyceraldehyde-3-phosphate (A)</p> Signup and view all the answers

What is formed as a result of the removal of water from 2-phosphoglycerate in step 9 of glycolysis?

<p>High-energy enol phosphate linkage (phosphoenolpyruvate) (A)</p> Signup and view all the answers

What is the net yield of ATP in glycolysis?

<p>+2 ATP (A)</p> Signup and view all the answers

What is the purpose of the transfer of the high phosphate group to ADP in step 10 of glycolysis?

<p>To form ATP and pyruvate completing glycolysis (D)</p> Signup and view all the answers

What happens to the phosphate ester linkage in 3-phosphoglycerate in step 8 of glycolysis?

<p>It moves from carbon 3 to carbon 2 to form 2-phosphoglycerate (C)</p> Signup and view all the answers

What does fructose 1,6 bisphosphate undergo in step 4 of glycolysis?

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

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