Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEET2026BotanyPhotosynthesis in Higher PlantsActual

How many ATP and NADPH molecules are required to make one molecule of glucose through the Calvin pathway ?

Options

  1. A18 ATP and 12 NADPH
  2. B12 ATP and 18 NADPH
  3. C24 ATP and 18 NADPH
  4. D6 ATP and 12 NADPH

Correct answer

A. 18 ATP and 12 NADPH

Step-by-step solution

In the Calvin cycle, the fixation of one molecule of CO₂ requires 3 ATP and 2 NADPH molecules. To synthesize one molecule of glucose, 6 molecules of CO₂ must be fixed. Total ATP required = 6 3 = 18 ATP. Total NADPH required = 6 2 = 12 NADPH. Answer: 18 ATP and 12 NADPH

Practice Photosynthesis in Higher Plants on Quantrex Academy →

More from Photosynthesis in Higher Plants

How many turns of Calvin cycle are required for the formation of three molecules of glucose ? 2026Photorespiration reaction catalyzed by RuBisCo is shown below : RuBP +O₂ 3-Phosphoglycerate + X Identify “X” from the given options : 2026Which of the following statements regarding photorespiration are correct ? (a) Do not occur in C3 plants (b) CO₂ is consumed and O₂ is generated (c) Phosphoglycolate is formed (d) 2026Which pigment has absorption peak at 700 nm in the photosynthetic reaction centre PS I (P700) ? 2026Find the incorrect statement(s) about photosynthesis from the following : A. The water splitting complex is associated with PS I. B. C ₄ plants use the C ₃ pathway of CO ₂ fixation 2026The enzyme required for carboxylation in the Calvin cycle is : 2026Select the correct sequence of experiments that led to a gradual understanding of photosynthesis in green plants. 2026Match List I with List II: array |l|l|l|l| & List - I & & List - II A . & Chlorophyll a & (i) & Yellow-green B. & Chlorophyll b & (ii) & Yellow C. & Xanthophylls & (iii) & Blue-gre 2025 Full Photosynthesis in Higher Plants list All NEET PYQs