Photosynthesis in Higher Plants NEET PYQs (1988–2026)

Solved Photosynthesis in Higher Plants PYQs

3 recent questions with answers. The full set of 122 is free to practise.

1. NEET 2026MediumC4 pathway and Kranz anatomy
   Q1

   Find the incorrect statement(s) about photosynthesis from the following:
   
   A. The water splitting complex is associated with PS I.
   
   B. C₄ plants use the C₃ pathway of CO₂ fixation as the main biosynthetic pathway.
   
   C. In C₄ plants, photorespiration does not occur.
   
   D. C₃ plants exhibit 'Kranz' anatomy.
   
   E. ATP synthesis in chloroplast occurs through chemiosmosis.
   
   Choose the answer from the options given below:

   • AB and C only
   • BB only
   • CB and E only
   • DA and D only

   Show answer & solution

   Correct answer: (D)

   A incorrect (water splitting is with PSII). D incorrect (C₃ plants lack Kranz anatomy). So A and D are incorrect.
2. NEET 2026EasyCalvin cycle (C3 pathway)
   Q2

   The enzyme required for carboxylation in the Calvin cycle is

   • AHexokinase
   • BPEP carboxylase
   • CRuBP carboxylase-oxygenase
   • DCarboxypeptidase

   Show answer & solution

   Correct answer: (C)

   RuBisCO (RuBP carboxylase) catalyses carboxylation.
3. NEET 2026HardLight reaction and photophosphorylation
   Q3

   Which of the following statements are correct with respect to DNA separation, isolation and visualization?
   
   A. The cutting of DNA is done by molecular scissors.
   
   B. The DNA fragments separate according to their size in an agarose gel, upon electrophoresis.
   
   C. The separated DNA fragments can be seen without staining when exposed to UV light.
   
   D. The separated DNA fragments, when stained with ethidium bromide, can be seen in visible light.
   
   Choose the correct answer from the options given below:

   • AB and D only
   • BA and B only
   • CB and C only
   • DA and D only

   Show answer & solution

   Correct answer: (B)

   A correct (restriction enzymes = molecular scissors). B correct (size separation). C false (need staining). D false (need UV light to see ethidium bromide). So A and B.

Topic-wise question count

Where NEET has asked from Photosynthesis in Higher Plants, most frequent first.

• C4 pathway and Kranz anatomy33
• Light reaction and photophosphorylation24
• Calvin cycle (C3 pathway)22
• Photorespiration and factors affecting photosynthesis17
• Pigments involved in photosynthesis13
• Electron transport and chemiosmosis9
• Site of photosynthesis and chloroplast structure4

Year-wise Photosynthesis in Higher Plants questions in NEET

Number of questions from this chapter in each year's paper(s).