Photosynthesis: Function and Process

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Questions and Answers

What is the main function of photosynthesis?

  • To release oxygen into the atmosphere
  • To break down glucose into carbon dioxide
  • To produce energy for cellular respiration
  • To convert light energy into chemical energy (correct)

Which of the following are the reactants of photosynthesis?

  • Water and carbon dioxide (correct)
  • Chlorophyll and sunlight
  • Stoma and mesophyll cells
  • Glucose and oxygen

Where does photosynthesis mainly occur in a plant?

  • Roots
  • Stems
  • Flowers
  • Leaves (correct)

What is the primary function of stomata in photosynthesis?

<p>To regulate the exchange of gases (C)</p> Signup and view all the answers

Which organelle is directly involved in photosynthesis?

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

What is the main product of photosynthesis?

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

What is the function of spongy mesophyll in a leaf?

<p>To facilitate gas exchange with the atmosphere (D)</p> Signup and view all the answers

Why are plants green in color?

<p>Plants reflect green light and absorb other wavelengths (A)</p> Signup and view all the answers

What causes the leaves to change colors during the fall season?

<p>Decrease in chlorophyll pigments revealing other pigments (C)</p> Signup and view all the answers

What is the process that involves the gain of electrons by a substance?

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

What is the ultimate source of energy for all life on Earth?

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

Which compound forms the structural basis of ATP (adenosine triphosphate)?

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

What happens when the last phosphate group is broken from ATP (adenosine triphosphate)?

<p>Energy is released for cells to use (D)</p> Signup and view all the answers

Which part of photosynthesis produces energy from solar power in the form of ATP and NADPH?

<p>Light reaction or light-dependent reaction (B)</p> Signup and view all the answers

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