Photosynthesis in Plants

Yes, it is true. Chloroplasts are disintegrated and converted into chromoplasts.

Anthocyanins are pigments which are associated with plastids, instead they remain dissolved in the cell- sap and give that color to the plant structure.

Tissue culturing requires 3000-5000 lux of light when the plants become capable of photosynthesis.

Oxygen is generated as a waste during photosynthesis in plants.

This is the correct option. Stroma is the site of 'dark reaction' during photosynthesis, that involves chloroplasts. Ribosome is a minute particle consisting of RNA and associated proteins found in large numbers in the cytoplasm of living cells. They bind messenger RNA and transfer RNA to synthesise polypeptides and proteins.

This is the correct option as this is a false statement. The chromoplasts are the coloured plastids.

In phosphorus deficiency, the first leaves to become yellow are mature leaves at the base.

Oxygen is never a limiting factor for photosynthesis. It means that the quantity of oxygen does not affect the rate of photosynthesis.

In photosynthesis, light energy is converted to chemical energy.

Magnoprotein is associated with photolysis of water, which contains Mn++ and Cl^- as cofactor.

Cornelius van Niel, based on his studies of purple and green bacteria, demonstrated that photosynthesis is essentially a light-dependent reaction in which hydrogen from a suitable oxidisable compound reduces carbon dioxide.

Chlorophyll b is yellow green.

Chlorophyll-b, Xanthophylls and Carotenoids are called as accessory pigments. They protect Chlorophyll-a from photo-oxidation.

Water splitting complex is associated with the PS II, which itself is physically located on the inner side of the membrane of the thylakoid.

The acceptor molecule of CO₂ is a 5-carbon ketose sugar – Ribulose bisphosphate (RuBP) which gets converted to two molecules of 3-phosphoglyceric acid in presence of RuBP carboxylase-oxygenase.