Sulphur Amino Acid Identification
The question asks to identify the amino acid that contains sulfur from the given options. Amino acids are the building blocks of proteins, and their side chains determine their properties. Some amino acids contain specific elements like sulfur.
Amino Acid Analysis
- Cysteine: This amino acid has a side chain containing a thiol group (-SH), which includes a sulfur atom. It is known as a sulfur-containing amino acid.
- Histidine: This amino acid contains an imidazole ring, which has nitrogen atoms but lacks sulfur.
- Tryptophan: This amino acid features an indole ring structure, containing nitrogen but no sulfur.
- Serine: This amino acid has a primary alcohol group (-CH2OH) in its side chain and does not contain sulfur.
Conclusion
Based on the side chain structures, Cysteine is the only amino acid among the options provided that contains sulfur.
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2. Vitamin B12
3. Vitamin K
4. Vitamin C
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Read the following and answer the question based on it.
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Important Questions from Biomolecules
The chemical name of Vitamin D 3is:
Which of the following food comes under complex carbohydrate?
I. Potatoes
II. Sweets
III. Pasta
IV. Wheat
Following are the pKa's of the ionizable groups in lysine
pKa 1 = 2.16 (α - carboxylic group)
pKa 2 = 9.06 (α - amino group)
pKa 3 = 10.54 (ε - amino group)
Which one of the following options represents the pl of lysine?
How many hydrogen bonds involving the backbone CO and NH can be observed in an α‐helix consisting of 15 amino acid residues?
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