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  • Engelmann showedOption: 1 The wavelength of light at which photosynthesis occursOption: 2 T

Engelmann showed

Option: 1

The wavelength of light at which photosynthesis occurs


Option: 2

The action spectrum for photosynthesis


Option: 3

Both a and b


Option: 4

None of these


Answers (1)

best_answer
 

Exp. 4

  • T.W Engelmann used a prism and he split light into its spectral components and then illuminated a green alga, Cladophora, placed in a suspension of aerobic bacteria. 
  • The bacteria were used to detect the sites of O2 evolution. 
  • He observed that the bacteria accumulated mainly in the region of blue and red light of the split spectrum. 
  • A first action spectrum of photosynthesis was thus described. 
  • It resembles roughly the absorption spectra of chlorophyll a and b.

Engelmann observed that the bacteria accumulated mainly in the region of blue and red light of the split spectrum. A first action spectrum of photosynthesis was thus described. Hence, the correct answer is option c.

 

Posted by

himanshu.meshram

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