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Biomolecules
What are the common types of secondary structure of proteins?
Secondary structure of protein: The secondary structure of protein refers to the shape in which a long polypeptide chain exist. They are found exist in two different types of structures viz.α-helix and β-pleated sheet structure. It arises due to the regular folding of the backbone of the polypeptide chain due to intermolecular hydrogen bonding between the carboxyl and amino group. In an α-helix, the peptide chain coils and the turns of the coil are held together by hydrogen bonds. In contrast to this, another type of secondary structure is possible in which the protein chains are stretched out and is known as β-structures.
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The melting points and solubility of water of amino acids are generally higher than that of the corresponding halo acids. Explain.
Where does the water present in the egg go after the boiling the egg?
What products would be formed when a nucleotide from DNA containing thymine is hydrolysed?
When RNA is hydrolysed, there is no relationship among the quantities of different bases obtained. What does this fact suggest about the structure of RNA?
Give one example each of (i) Reducing sugar and (ii) Non-reducing sugar.
Name the anomers of glucose.
State two characteristics of monosaccharides.
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