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NEET 2026
Exam
NEET
Year
2026
Subject
Botany
Chapter
Photosynthesis in Higher Plants

NEET 2026 · Botany · Photosynthesis in Higher Plants

Select the correct sequence of experiments that led to a gradual...

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

Options

  1. AProduction of glucose →\rightarrow role of air →\rightarrow release of oxygen →\rightarrow absorption spectra of chlorophyll a and b
  2. BAbsorption spectra of chlorophyll a and b →\rightarrow production of glucose →\rightarrow release of oxygen →\rightarrow role of air
  3. CRole of air →\rightarrow release of oxygen →\rightarrow production of glucose →\rightarrow absorption spectra of chlorophyll a and b
  4. DRelease of oxygen →\rightarrow production of glucose →\rightarrow absorption spectra of chlorophyll a and b →\rightarrow role of air

Correct answer

C. Role of air →\rightarrow release of oxygen →\rightarrow production of glucose →\rightarrow absorption spectra of chlorophyll a and b

Step-by-step solution

Joseph Priestley (1770) performed experiments that revealed the essential role of air in the growth of green plants.

Jan Ingenhousz (1779) showed that sunlight is essential to the plant process and that only the green parts of the plants release oxygen.

Julius von Sachs (1854) provided evidence for the production of glucose when plants grow.

T.W. Engelmann (1843-1909) described the first action spectrum of photosynthesis, which roughly resembles the absorption spectra of chlorophyll a and b.

The correct chronological sequence is role of air →\rightarrow release of oxygen →\rightarrow production of glucose →\rightarrow absorption spectra of chlorophyll a and b.
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