When hydrogen covalently bonds to carbon it creates a nonpolar bond. However, when hydrogen covalently bonds to oxygen it creates a polar bond. What is a polar covalent bond, and why does it occur between hydrogen and oxygen, but not hydrogen and carbon?
Nucleotides
It is an organic molecule made up of three basic components- a nitrogenous base, phosphate,and pentose sugar. The nucleotides are important for metabolic reactions andthe formation of DNA (deoxyribonucleic acid) and RNA (ribonucleic acid).
Nucleic Acids
Nucleic acids are essential biomolecules present in prokaryotic and eukaryotic cells and viruses. They carry the genetic information for the synthesis of proteins and cellular replication. The nucleic acids are of two types: deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). The structure of all proteins and ultimately every biomolecule and cellular component is a product of information encoded in the sequence of nucleic acids. Parts of a DNA molecule containing the information needed to synthesize a protein or an RNA are genes. Nucleic acids can store and transmit genetic information from one generation to the next, fundamental to any life form.
When hydrogen covalently bonds to carbon it creates a nonpolar bond. However, when hydrogen covalently bonds to oxygen it creates a polar bond. What is a polar covalent bond, and why does it occur between hydrogen and oxygen, but not hydrogen and carbon?
Hydrogen bonds form between a hydrogen atom that is covalently bonded to an electronegative atom (such as nitrogen, oxygen, or fluorine) and another electronegative atom. The partial positive charge on the hydrogen atom is attracted to the partial negative charge on the other electronegative atom, creating a hydrogen bond. These bonds are relatively weak compared to covalent bonds, but they are important in determining the structures and properties of many biologically important molecules, such as DNA and proteins.
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