Question

109. When electrons move from PS-II to PS-I through 109
the ETS in thylakoid membrane, which component
from the following perform a role similar to role
of CO-Q in mitochondrial ETS ?
(1) Pheophytine (2) PQ
(3) Cyt-F​

Answer 1

Answer: PLASTOCYANIN

Explanation:

Answer 2

Answer:

Two alternative models of organization of the mitochondrial electron transport chain (mETC) have been alternatively favored or questioned by the accumulation evidences of different sources, the solid model or the random collision model. Both agree in the number of respiratory complexes (I-IV) that participate in the mETC, but while the random collision model proposes that Complexes I-IV do not interact physically and that electrons are transferred between them by coenzyme Q and cytochrome c, the solid model proposes that all complexes super-assemble in the so-called respirasome. Recently, the plasticity model has been developed to incorporate the solid and the random collision model as extreme situations of a dynamic