Non-covalent interactions are essential in biological systems. They allow proteins to interact with other proteins or sm

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Non Covalent Interactions Are Essential In Biological Systems They Allow Proteins To Interact With Other Proteins Or Sm 1 (28.53 KiB) Viewed 27 times

Non-covalent interactions are essential in biological systems. They allow proteins to interact with other proteins or small molecules. For example, hydrogen bonds hold the two strands of DNA together in the double helix and allow an RNA copy of DNA to be made. Your friend argues that non- covalent interactions could not possibly be what "holds" DNA strands together based on the bond strength seen in the table (below). Briefly explain where non-covalent bonds are found in DNA and why non-covalent interactions can hold DNA strands together. Type Strength (kCal/mole) in a vacuum Strength (kCal/mole) in water 90 90 Covalent bond Noncovalent interaction . Ionic 80 3 Hydrogen 4 1 . van der Waals 0.1 Paragraph -B/EIE uth p 0.1 BD