Biology · PYQ NEET UG 2026

Select the correct sequence of experiments that led to a gradual understanding of photosynthesis in green plants.

1. Absorption spectra of chlorophyll a and b → production of glucose → release of oxygen → role of air
2. Role of air → release of oxygen → production of glucose → absorption spectra of chlorophyll a and b
3. Release of oxygen → production of glucose → absorption spectra of chlorophyll a and b → role of air
4. Production of glucose → role of air → release of oxygen → absorption spectra of chlorophyll a and b