How is sulphur important for plants? Name the amino acids in which it is present.

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Solution

Role of sulphur:

Sulphur is a macronutrient and immobile element. It has the following functions:-

● Main constituents of coenzymes, vitamins (biotin and thiamine) and ferredoxin. Ferredoxin is important in electron transfer in photosynthesis.

● Formation of disulfide bridges: Plays a major role in forming tertiary and quaternary structures of proteins.

● Constituents of amino acids like cysteine and methionine.

Cysteine and methionine are the two sulphur-containing amino acids.

Sulphur containing amino acids:

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Similar questions

	Column I		Column II
$(a)$	Magnesium	$(p)$	Found in some amino acids
$(b)$	Sulphur	$(q)$	Not important for plants
$(c)$	Iodine	$(r)$	Structural component or chlorophyll
$(d)$	Manganese	$(s)$	Component of sugar
		$(t)$	Required for enzyme activity

What is reductive during the synthesis of amino acids in plants? How is it different from transaminase?

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