History of photosynthesis - Basic

Dear Readers,

Photosynthesis was partially discovered in the 1600's by Jan Baptista van Helmont, a Belgian chemist, physiologist and physician. Helmont performed a 5-year experiment involving a willow tree which he planted in a pot with soil and placed in a controlled environment.

Q1. The law of limiting factor for photosynthesis was enunciated by

  •  Blackmann
  •  Hill
  •  Ruben
  •  Kamen


Q2.  The ‘Z’ scheme of photosynthesis was proposed by

  •  Hill and Bendall
  •  Emerson
  •  Arnon
  •  Rabinowitch and Govindjee

Hill and Bendall

Q3.  Who revealed the chemical composition of chlorophyll carotene and xanthophyll ?

  •  Govindjee
  •  Willstatter and Stoll
  •  Park and Biggins
  •  Mayer and French

Willstatter and Stoll

Q4.  Who proposed the ‘law of limiting factor’ as the ‘law of minimum’

  •  Liebig
  •  Blackmann
  •  Hill
  •  Priestley


Q5.  The law of limiting factor in photosynthesis was criticised by

  •  James and Harder
  •  Mayer and Anderson
  •  Willstatter and Stoll
  •  Hill and Scarisbrick

James and Harder

Q6.  "The amount of CO2 absorbed and O2 released during photosynthesis are in equal volumes" was proved by

  •  Englemann
  •  Robert Mayer
  •  Priestley
  •  Bousingault


Q7.  “Photosynthesis is the conversion of light energy within a plant" was first stated by

  •  Willstatter and Stoll
  •  Mayer and Anderson
  •  Benson and Calvin
  •  Robert Mayer

Robert Mayer

Q8.  “Thylakoid” name was given by

  •  Arnon
  •  Park and Biggins
  •  Park and Fortan
  •  Manke


Q9.  The researches on photosynthesis started

  •  In the 17th century
  •  In the 18th century
  •  In the 19th century both the electrodes
  •  In the 20th century

In the 18th century

Q10.  “Impure air is purified in the presence of light and green plants” was first said by

  •  De Saussure
  •  Priestley
  •  Van Helmont
  •  Ingenhousz


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History of Photosynthesis_MCQ_Basic Level
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