Respuesta :
Answer:
b) Formation of free electron
Explanation:
a) Electrons can by transferred through hydrogen atom, hydride ion or directly as electron. Like NADH and FAD transfer the electrons from substrate to oxygen in respiratory chain.
b) Oxidation mean tranasfer of electron to a molecule that is reduced so there is no concept of free electron in biological system, however there is a concept of oxidative stress due to free radicles.
c) NAD and NADP transfer the H+ from one substrate to other.
D) During the oxidation and reduction of nicotinamide coenzyme the free H+ are produced. the free protons are used to generate ATP in ATP synthase complex of Electron transport chain. The H+ and H30 are present in neutral pure water.
Hoping this might help!!
A Redox reaction is a reaction in which the transfer of electrons occurs between two or more molecules or compounds. An ion, atom or molecule can gain or lose an electron.
The correct answer is:
Option b. formation of free electrons
This can be explained as:
- Electrons can be repositioned from one molecule to another with the help of hydrogen atoms or hydride ions.
- When electrons transfer from one molecule it reduces and oxidizes molecules but are not released freely in the system.
- H+ can be transferred from molecules like in the case of NAD and NADP.
- Free H+ is also produced during the redox of nicotinamide enzyme reactions. They are released to generate ATP.
Therefore, free electrons are not formed in biological redox.
To learn more about oxidation-reduction reactions follow the link:
https://brainly.com/question/4222605
