Question
Biology Question on respiration in plants
In alcoholic fermentation
A
Triose phosphate is the electron donor while acetaldehyde is the electron acceptor
B
Triose phosphate is the electron donor while pyruvic acid is the electron acceptor
C
There is no electron donor
D
Oxygen is the electron acceptor
Answer
Triose phosphate is the electron donor while acetaldehyde is the electron acceptor
Explanation
Solution
When oxygen is not available (anaerobic condition) yeast and some other microbes convert pyruvic acid into ethyl alcohol. It is a two step process. In the first step pyruvic acid is decarboxylated to yield acetaldehyde and CO2.Pyruvic acid is a 3-C compound and acts as electron donor while acetaldehyde is the electron acceptor.