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What is Photosynthesis? - Exam
Contributed by: Flynn
  • 1. What is the primary purpose of photosynthesis?
A) To generate heat energy.
B) To convert light energy into chemical energy.
C) To absorb nutrients from soil.
D) To produce carbon dioxide.
  • 2. What pigment is primarily responsible for capturing light energy in plants?
A) Melanin.
B) Chlorophyll.
C) Carotene.
D) Xanthophyll.
  • 3. What is the light-dependent reaction of photosynthesis primarily concerned with?
A) Water absorption.
B) Converting light into chemical energy.
C) Oxygen production only.
D) Synthesis of glucose.
  • 4. Which molecule is a primary energy carrier produced in photosynthesis?
A) ADP.
B) GTP.
C) ATP.
D) NADH.
  • 5. Photosynthesis occurs in which two main stages?
A) Light-dependent reactions and Calvin cycle.
B) Dark reactions and aerobic respiration.
C) Glycolysis and Krebs cycle.
D) Cellular respiration and fermentation.
  • 6. What is the role of water in photosynthesis?
A) To absorb sunlight.
B) To provide electrons and protons.
C) To transport nutrients.
D) To produce glucose directly.
  • 7. Where in the chloroplast does the Calvin cycle take place?
A) Thylakoid membrane.
B) Inner membrane.
C) Outer membrane.
D) Stroma.
  • 8. Which energy source drives photosynthesis?
A) Sunlight.
B) Heat.
C) Electricity.
D) Nuclear energy.
  • 9. Which process do plants use to create glucose from carbon dioxide and water?
A) Photosynthesis.
B) Transpiration.
C) Respiration.
D) Digestion.
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