Photosynthesis in Higher Plants Test - 1

There is maximum absorption by chlorophyll a, in the red region and so there is higher rate of photosynthesis.

Splitting of the water molecule takes place on the inner side of the membrane, the protons or hydrogen ions that are produced by the splitting of water accumulate within the lumen of the thylakoids.

The ATPase enzyme consists of two parts: one called the F0F0 is embedded in the membrane and forms a transmembrane channel that carries out facilitated diffusion of protons across the membrane. The other portion is called F1F1 and protrudes on the outer surface of the thylakoid membrane on the side that faces the stroma.

Solarisation is the inhibition of photosynthesis at very high light intensities due to photoxidation of certain compounds and destruction of chlorophyll moleucules.

The photosynthetic pigment Beta-carotenes can be converted to Vitamin A. carrot contain large quantity of carotenes that can be converted into vitamin A

In green plants H₂O is the hydrogen donor and is oxidised to O₂ . Some organisms do not release O₂ during photosynthesis. When H2S, instead is the hydrogen donor for purple and green sulphur bacteria, the ‘oxidation’ product is sulphur or sulphate depending on the organism.