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