Photosynthesis and Plant Energetics Quiz
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Questions and Answers

Which of the following is true about the Thylakoid reactions in photosynthesis?

  • They use water to produce oxygen (correct)
  • They use CO2 to produce sugars
  • They use oxygen to produce ATP and NADPH
  • They use ATP and NADPH to produce ADP and NADP+

What is the energy source for the Carbon reactions in photosynthesis?

  • Light (correct)
  • ADP
  • NADP+
  • Water

What is the function of pigments in photosynthesis?

  • To produce sugars
  • To produce ATP and NADPH
  • To produce oxygen
  • To absorb photons (correct)

What does the absorption spectrum of a leaf represent?

<p>The wavelengths of light absorbed by the leaf (A)</p> Signup and view all the answers

What is the role of the Light Harvesting Complex (LHC) in photosynthesis?

<p>To transfer energy to the reaction centre (D)</p> Signup and view all the answers

What is the final electron acceptor in the Photosynthetic electron-transport chain?

<p>P700 (B)</p> Signup and view all the answers

What is the function of the Oxygen evolving complex in photosynthesis?

<p>To strip electrons from water (C)</p> Signup and view all the answers

Which of the following is the correct equation for the Calvin-Benson cycle?

<p>RuBP + CO2 → 2 3-phosphoglycerate (B)</p> Signup and view all the answers

What is the function of Rubisco in photosynthesis?

<p>To catalyze the carboxylation of RuBP (B)</p> Signup and view all the answers

What is the most abundant protein on Earth?

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

What is the role of the electron transport chain in photosynthesis?

<p>To generate ATP (D)</p> Signup and view all the answers

What happens when the electron transport and Calvin-Benson cycle capacities are mismatched?

<p>The Calvin-Benson cycle slows down more than the photosynthetic ETC (A)</p> Signup and view all the answers

What is the function of the Xanthophyll cycle in photosynthesis?

<p>To dissipate excess light energy (A)</p> Signup and view all the answers

What is the primary function of the thylakoid membranes in photosynthesis?

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

What is the role of plastocyanin in photosynthesis?

<p>To transfer electrons to PSI (B)</p> Signup and view all the answers

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