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Julius von Sachs provided evidence that the green substance of plants is located in

  • (a) the central vacuole of leaf cells Your answer
  • (b) the nucleus of the guard cells Your answer
  • (c) the cell wall of mesophyll cells Your answer
  • (d) special bodies in the cells, the chloroplasts Correct
Your answer: Correct answer: (d)
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Explanation

Why (d) is correct

Julius von Sachs showed that the green substance (chlorophyll) is located in special bodies inside plant cells, later called chloroplasts.

Why the other options are wrong

  • (a) · your answer Chlorophyll is not in the vacuole.
  • (b) · your answer Chlorophyll is not in the nucleus.
  • (c) · your answer Chlorophyll is not in the cell wall.
NCERT point: Sachs also showed that glucose is made in green parts and stored as starch.
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