In photosystem $II$,the reaction center chlorophyll $a$ absorbs $680 \, nm$ wavelength of ...... causing electrons to become excited and jump into an orbit.

How many total water molecules are required by green plants to reduce $6$ molecules of $CO_2$ into a hexose sugar?

Ferredoxin is a

When a chlorophyll molecule in $PS-II$ is excited,the electron released first passes into:

$PS$ $I$ is found in:

In photosystem $II$, the reaction centre chlorophyll-a absorbs $A$ nm wavelength of red light, causing electrons to become excited and jump into an orbit farther from the atomic nucleus. These electrons are picked up by an $B$, which passes them to an electron transport system consisting of $C$. Pick the right choice for $A, B$ and $C$.