Question

How are electrons carried from complex$I$ to complex $\mathrm{III}$?

Short answer

The $\mathrm{CoQ}$(Coenzyme $\mathrm{Q}$) transports electrons from Complex$\mathrm{I}$to Complex $\mathrm{III}$.

Step-by-step solution

Given information

We need to find the electrons carrier of complex $\mathrm{III}$from complex$\mathrm{I}$

Explanation

We know that

A mobile carrier, Coenzyme $\mathrm{Q}$, transports electrons from Complex $\mathrm{I}$ and $\mathrm{II}$ to Complex $\mathrm{III}$ ($\mathrm{CoQ}$). $\mathrm{CoQ}$ is converted to ${\mathrm{CoQH}}_2$ in this mechanism, which transports electrons from Complex $\mathrm{I}$ and $\mathrm{II}$ to Complex $\mathrm{III}$.