In which of the following is solar energy converted into $ATP$?

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 $C$.

Which of the following photosynthetic pigments is responsible for the photolysis of water,leading to the release of molecular oxygen?

The reaction centre in $PS$ $II$ has an absorption maxima at $............\,nm$.

Why does cyclic photophosphorylation occur in stroma lamellae?

When a cell converts light energy into chemical energy,which of the following reactions takes place?