Biomolecules

State differences between α-helix and β-pleated sheet structure.

α-helix structure	β-pleated structure
1. In α-helix. the peptide chains are coiled upto form helix which is right handed involving hydrogen bonding.	1.The peptide chains lie side by side held together by inter molecular hydrogen bonding.
2. Myosin, keratin and wool have α-helix structure. It acquires coil shape.	2. Silk has β-pleated structure. It acquires streched sheet structure.

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Compare α-D glucose with β-D glucose.

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State differences between primary and secondary structure of a protein.

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Name the deficiency diseases caused due to lack of the vitamin A, C, E, B₁, B₁₂ B₆and K.

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What are nucleic acids? Explain their functions in the synthesis of proteins.

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The two strands in DNA are not identical but are complimentary. Explain.

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The two strands in DNA are not identical but are complimentary. Explain.

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What are the different types of RNA found in the cells of organisms? State the functions of each type.

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State significance of primary and secondary structures of proteins.

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Write the important structural and functional differences between DNA and RNA.

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