Question:

In alcoholic fermentation

Updated On: Jun 23, 2024
  • Triose phosphate is the electron donor while acetaldehyde is the electron acceptor
  • Triose phosphate is the electron donor while pyruvic acid is the electron acceptor
  • There is no electron donor
  • Oxygen is the electron acceptor
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The Correct Option is A

Solution and Explanation

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.
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Concepts Used:

Respiration in Plants

Respiration in plants is a process that entails the production of energy in plants. This process can simply be described as the intake of Oxygen and the release of Carbon Dioxide as an outcome of the oxidation of complex organic compounds. Though plants do not have any specific organ to balance the process of respiration, their stems, roots, and leaves do this work at a very low rate than other living beings. The process of respiration is very crucial for the plants to sustain the growth of the plant tissues.

This process can be stated as-

\[C_6H_{12}O_6 + 6O_2 → 6CO_2 + 6H_2O + \text{Energy}\]