Photosynthesis In Higher Plants Question 67
Question: The experiment material used by Van Neil, to prove that $ O_2 $ comes out from water was studied on:
Options:
A) Chlorella pyrenoidosa
B) Cladophora
C) Purple & green sulphur bacteria
D) Blue green algae
Show Answer
Answer:
Correct Answer: C
Solution:
[c] By studying purple sulphur bacteria and green sulphur bacteria, Cornelius Van Niel was the first scientist to demonstrate that photosynthesis is a light-dependent redox reaction in 1931, in which hydrogen from an oxidisable compound reduces carbon dioxide to cellular materials.
This can be expressed as: $ 2H_2A+CO_2\to 2A+CH_2O+H_2O $ , where A is the electron acceptor.
His discovery predicted that $ H_2O $ is the hydrogen donor in green plant photosynthesis and is oxidised to $ O_2 $ .
BETA
