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The C4 pathway was worked out by

  • (a) Hatch and Slack Correct
  • (b) Robert Hill Your answer
  • (c) Hans Krebs Your answer
  • (d) Melvin Calvin Your answer
Your answer: Correct answer: (a)
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Explanation

Why (a) is correct

M.D. Hatch and C.R. Slack worked out the C4 pathway, which is also called the Hatch and Slack pathway.

Why the other options are wrong

  • (b) · your answer Robert Hill showed that isolated chloroplasts release O2 in light (Hill reaction).
  • (c) · your answer Hans Krebs worked out the citric acid (Krebs) cycle of respiration.
  • (d) · your answer Melvin Calvin worked out the C3 (Calvin) cycle.
NCERT point: C4 pathway: PEP + CO2 → OAA in the mesophyll.
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