NEET Biology Mineral Nutrition Based Practice Questions & Answers with Viewers Discussion and Detailed Explanation

Answer: (c)

Sulphur is present in all the cells of the body in association with proteins made of sulphur containing amino acids, viz., cystine, cysteine and methionine. Members of Cruciferae and animal proteins are rich sources of sulphur; other vegetable proteins (e.g., pulses) have only little sulphur. Plants absorb sulphur from soil in the form of sulphate ions ($SO_4$ – – ). It is a constituent of ferredoxin and some of the lipids present in chloroplasts. Pungent floroue and odour of mustard, cabbage, turnip etc. of Family Brassicaceae is due to the presence of sulphur containing oils. Application of 40 kg/ha to oilsed based cropping system is found to increase the yield, oil and protein content of the seeds.