Photosynthesis and Cellular Respiration Quiz
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Questions and Answers

What is the main product of photosynthesis?

  • Glucose (correct)
  • Oxygen
  • ATP
  • Carbon dioxide

    • In which part of the chloroplast does the light-dependent reaction occur?

  • Cytoplasm
  • Stroma
  • Thylakoid membrane (correct)
  • Mitochondria

    • What is the main purpose of the Calvin cycle?

  • To make glucose (correct)
  • To produce oxygen
  • To release ATP
  • To absorb sunlight

    • Which stage of cellular respiration produces the most ATP?

    <p>Electron transport chain</p> Signup and view all the answers

    What molecule is broken down during glycolysis?

    <p>Glucose</p> Signup and view all the answers

    What gas is taken in by plants during photosynthesis?

    <p>Carbon dioxide</p> Signup and view all the answers

    Which pigment is primarily responsible for capturing light in photosynthesis?

    <p>Chlorophyll</p> Signup and view all the answers

    What is the name of the cycle that occurs during photosynthesis to produce sugar?

    <p>Calvin cycle</p> Signup and view all the answers

    What happens to water molecules in the light-dependent reactions?

    <p>They are split into oxygen, protons, and electrons.</p> Signup and view all the answers

    What is the main energy source for cellular respiration?

    <p>Glucose</p> Signup and view all the answers

    Which molecule is both a reactant in photosynthesis and a product of cellular respiration?

    <p>Carbon dioxide</p> Signup and view all the answers

    Where does glycolysis take place?

    <p>Cytoplasm</p> Signup and view all the answers

    What are the products of the Krebs cycle?

    <p>ATP, NADH, FADH₂, and carbon dioxide</p> Signup and view all the answers

    What is the role of RuBisCO in photosynthesis?

    <p>Fixes carbon dioxide into organic molecules</p> Signup and view all the answers

    What is the function of stomata in plants?

    <p>Gas exchange</p> Signup and view all the answers

    What is the main output of the light-dependent reactions?

    <p>ATP and NADPH</p> Signup and view all the answers

    Which stage of cellular respiration produces water?

    <p>Electron transport chain</p> Signup and view all the answers

    What energy transformation occurs during cellular respiration?

    <p>Chemical to usable energy (ATP)</p> Signup and view all the answers

    What is the main purpose of aerobic respiration?

    <p>To convert glucose into usable energy (ATP)</p> Signup and view all the answers

    Which stage of aerobic respiration occurs in the mitochondria?

    <p>Both Krebs cycle and electron transport chain</p> Signup and view all the answers

    What happens to the oxygen used in aerobic respiration?

    <p>It combines with electrons and hydrogen ions to form water</p> Signup and view all the answers

    How many molecules of ATP are produced during aerobic respiration from one glucose molecule?

    <p>36-38</p> Signup and view all the answers

    What role does the electron transport chain play in aerobic respiration?

    <p>It produces a proton gradient to generate ATP</p> Signup and view all the answers

    Which is true about aerobic respiration compared to anaerobic respiration?

    <p>Aerobic respiration produces more ATP than anaerobic respiration</p> Signup and view all the answers

    What is the function of NADH in cellular respiration?

    <p>To carry high-energy electrons to the electron transport chain</p> Signup and view all the answers

    Which process is anaerobic?

    <p>Glycolysis</p> Signup and view all the answers

    What is the main product of fermentation in muscle cells?

    <p>Lactic acid</p> Signup and view all the answers

    How is energy stored in ATP?

    <p>In the bond between the second and third phosphate groups</p> Signup and view all the answers

    What drives the ATP synthase in the electron transport chain?

    <p>Proton gradient across the membrane</p> Signup and view all the answers

    Which step of cellular respiration is oxygen directly involved in?

    <p>Electron transport chain</p> Signup and view all the answers

    What process provides energy for muscle activity when oxygen is scarce?

    <p>Lactic acid fermentation</p> Signup and view all the answers

    What happens during photolysis in photosynthesis?

    <p>Water is split into oxygen, electrons, and protons.</p> Signup and view all the answers

    How do plants obtain carbon dioxide?

    <p>Through stomata</p> Signup and view all the answers

    Which stage of photosynthesis uses ATP and NADPH?

    <p>Calvin cycle</p> Signup and view all the answers

    What is the main purpose of cellular respiration?

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

    Which type of organism performs both photosynthesis and cellular respiration?

    <p>Plants</p> Signup and view all the answers

    What are the products of the light-dependent reactions of photosynthesis?

    <p>ATP, NADPH, and oxygen</p> Signup and view all the answers

    What happens to pyruvate before entering the Krebs cycle?

    <p>It is converted into acetyl-CoA.</p> Signup and view all the answers

    What happens during chemiosmosis in the mitochondria?

    <p>ATP is produced by ATP synthase using a proton gradient.</p> Signup and view all the answers

    What is the net ATP gain from glycolysis?

    <p>2 ATP</p> Signup and view all the answers

    Study Notes

    Photosynthesis and Cellular Respiration

    • Photosynthesis is the process by which plants convert light energy into chemical energy (glucose).
    • The main product of photosynthesis is glucose.
    • The main input for photosynthesis is carbon dioxide.
    • The light-dependent reactions occur in the thylakoid membrane of the chloroplast.
    • The Calvin cycle occurs in the stroma of the chloroplast.
    • The main purpose of the Calvin cycle is to produce glucose.
    • The source of energy for photosynthesis is sunlight.
    • Chlorophyll is the primary pigment responsible for capturing light energy in photosynthesis.
    • Chlorophyll is found in the thylakoid membrane of the chloroplast.
    • Plants are the primary organisms that perform photosynthesis.
    • Cellular respiration is the process by which cells break down glucose to release energy in the form of ATP.
    • The main reactant in cellular respiration is glucose.
    • The main products of cellular respiration are ATP, carbon dioxide, and water.
    • Glycolysis is the first stage of cellular respiration and occurs in the cytoplasm.
    • The Krebs cycle occurs in the mitochondrial matrix.
    • The electron transport chain occurs in the inner mitochondrial membrane.
    • The electron transport chain produces the most ATP.
    • The Krebs cycle produces ATP, NADH, and FADH2
    • The final electron acceptor in cellular respiration is oxygen.
    • ATP is the main energy carrier in cells.
    • Mitochondria are the organelles responsible for cellular respiration.
    • Stomata in plants are responsible for gas exchange.

    Additional Questions and Answers

    • Question 1: What is the main product of photosynthesis?
      • Answer: Glucose.
    • Question 2: In which part of the chloroplast does the light-dependent reaction occur?
      • Answer: Thylakoid membrane.
    • Question 3: What molecule is broken down during glycolysis?
      • Answer: Glucose.
    • Question 4: What is the main purpose of the Calvin cycle?
      • Answer: To make glucose.
    • Question 5: Which stage of cellular respiration produces the most ATP?
      • Answer: Electron transport chain.
    • Question 6: What is the source of energy for photosynthesis?
      • Answer: Sunlight.
    • Question 7: Where does the Krebs cycle occur?
      • Answer: Mitochondrial matrix.
    • Question 8: What gas is taken in by plants during photosynthesis?
      • Answer: Carbon dioxide.
    • Question 9: What is the name of the enzyme that helps produce ATP during the electron transport chain?
      • Answer: ATP synthase.
    • Question 10: What is the main energy carrier in cells?
      • Answer: ATP.
    • Question 11: Which pigment is primarily responsible for capturing light in photosynthesis?
      • Answer: Chlorophyll.
    • Question 12: Which organism performs photosynthesis?
      • Answer: Plants.
    • Question 13: What are the reactants in cellular respiration?
      • Answer: Oxygen and glucose.
    • Question 14: What gas is a byproduct of photosynthesis?
      • Answer: Oxygen.
    • Question 15: What is the name of the cycle that occurs during photosynthesis to produce sugar?
      • Answer: Calvin cycle.
    • Question 16: Which step occurs first in cellular respiration?
      • Answer: Glycolysis.
    • Question 17: What molecule acts as the final electron acceptor in cellular respiration?
      • Answer: Oxygen.
    • Question 18: What powers the light-dependent reactions?
      • Answer: Sunlight.
    • Question 19: Which organelle is responsible for photosynthesis?
      • Answer: Chloroplast.
    • Question 20: What happens to water molecules in the light-dependent reactions?
      • Answer: They are split into oxygen, protons, and electrons.
    • Question 21: What is the role of NADPH in photosynthesis?
      • Answer: To carry high-energy electrons.
    • Question 22: Where does glycolysis take place?
      • Answer: Cytoplasm.
    • Question 23: Which molecule is both a reactant in photosynthesis and a product of cellular respiration?
      • Answer: Carbon dioxide.
    • Question 24: What happens to glucose during cellular respiration?
      • Answer: It is broken down to release energy.
    • Question 25: What is the function of stomata in plants?
      • Answer: Gas exchange.
    • Question 26: Which part of the cell is responsible for most ATP production?
      • Answer: Mitochondria.
    • Question 27: What is the main energy source for cellular respiration?
      • Answer: Glucose.

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    Photosynthesis and Cellular Respiration Past Paper PDF

    Description

    Test your knowledge on the processes of photosynthesis and cellular respiration. This quiz covers key concepts such as the light-dependent reactions, the Calvin cycle, and the role of glucose and ATP. Understand how plants convert light energy into chemical energy and how cells utilize that energy.

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