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Life Processes in Plants — Science STD 7 — Question

Gujarat BoardEnglish MediumSTD 7ScienceLife Processes in Plants1 Mark
MCQ
In an experiment, caustic soda is kept inside a bottle along with a leaf. The leaf does not turn blue-black after the starch test. What does this prove?
  • A
    Sunlight is harmful for starch formation
  • ✓
    Carbon dioxide is necessary for photosynthesis
  • C
    Alcohol removed the starch
  • D
    Caustic soda produces oxygen
✓

Answer

Correct option: B.
Carbon dioxide is necessary for photosynthesis
B

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