Question

Manybiologicalelectrontransferreactions,suchasthose associated with biological energy conversion, may be visualized as arising from electron tunneling between protein-bound cofactors, such as cytochromes, quinones, flavins, and chlorophylls. This tunneling occurs over distances that are often greater than 1.0 nm, with sections of protein separating electron donor from acceptor. For a specific combination of electron donor and acceptor, the rate of electron tunneling is proportional to the transmission probability, with k ≈ 7 nm−1 (eqn 9.11). By what factor does the rate of electron tunneling between two co-factors increase as the distance between them changes from 2.0 nm to 1.0 nm?

Answer 1

Answer:

The tunneling rate will increase by a million fold i.e by a factor of 1,000,000

Explanation:

The detailed steps is as shown by applying transmission probabilities and ratio of tunelling.