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