History of Photosynthesis_MCQ_Advance Level

History of Photosyntheis - Advance

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 first important biological investigation which led to the conclusion that plant makes its substance from water and not from soil was carried out by

•  Lamarck
•  De Vries
•  Von Helmont
•  Darwin

Von Helmont

Q2.  Most of the plants contain a green colouring pigment which is responsible for photosynthesis. This pigment was named chlorophyll by

•  Melvin Calvin
•  Jean Senebier
•  Julius Robert Mayer
•  Pelletier Caventou

Pelletier Caventou

Q3. 30. The scientist, who proved that bacteria use gas and to synthesize carbohydrate, is

•  Van Niel
•  Ruben
•  Jean Senebier
•  Julius Robert Mayer

Van Niel

Q4.  The oxygen produced during photosynthesis comes from photolysis of water was first time proved by

•  Ruben and Kamen
•  Ruben and Kamen
•  Melvin Calvin
•  Blackmann

Ruben and Kamen