In this article we will discuss about:- 1. Photosystem II (PS II) 2. Photosystem I (PS I) 3. The Light Reaction (Hill Reaction). Photosystem II (PS II): The light-driven reaction of photosynthesis also called light reaction (Hill reaction), referred to as electron transport chain, were first propounded by Robert Hill in 1939. The electron transport chain of photosynthesis is initiated [...]
In this article we will discuss about the photochemical and biosynthetic phase of photosynthesis. Photochemical Phase of Photosynthesis: Radiant Energy: The pigment system of the chloroplast first absorbs light energy and then passes it on via intermediates to the products of photosynthesis. When a chlorophyll molecule absorbs a light quantum (i.e., photon) the molecule is excited; it means that it [...]
The upcoming discussion will update you about the differences between Chlorophyll a and Chlorophyll b. Difference # Chlorophyll a: 1. It is C55H72O5N4Mg. 2. In pure state, chlorophyll a is blue-green. 3. Chlorophyll a is primary photosynthetic pigment. 4. It is soluble in petroleum ether. 5. Carbon-3 contains methyl (—CH3) group. 6. It absorbs more red wavelength than violet- blue [...]