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Types of Amino Acids

Choose the am...

Question

Choose the amino acid which has a sulfur group

A

Tryptophan

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B

Tyrosine

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C

Cysteine

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D

Aspargine

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Solution

The correct option is C
Cysteine

Shown here is the structure of all the amino acids mentioned here. As you can see cysteine is the amino acid with the sulfur group.

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Similar questions

Q. How many of the following amino acids contain(s) sulphur?
Serine, Cysteine, Methionine, Asparagine.

Q. Methionine, cysteine, tyrosine, glycine, alanine, etc. are different amino acids found in the proteins of living cells. What distinguishes these amino acids?

Choose the amino acid which has a sulfur group

Q. Choose the correct combination of statements given below related to the cysteine residue in proteins.
i) Cysteine can be linked to tyrosine by

S - O

bond.
ii) Cysteine can be linked to another cysteine by

S - S

bond.
iii) Cysteine can complex with

Z n^{2 +}

.
iv) Cysteine can be linked to methionine by

S - S

Q. Assertion :Insulin is a globular protein. Reason: It has two polypeptide chains with 21 and 30 amino acids joined by sulphur bridges connecting cysteine amino acid on the two chains.

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