Monomers, polymers and monosaccharides Flashcards
What is covalent bonding?
Where atoms share electron in their outer shells so a more stable compound is formed (a molecule)
What is ionic bonding?
Ions with opposite charges attract. This electrostatic force is an ionic bond. These are weaker than covalent bonds
What is a polymer?
Monomers can be linked together to form long chains of polymers. They are formed by polymerisation. The monomers are usually carbon based.
What is hydrogen bonding?
Electrons in a molecule aren’t very evenly distributed but spend more time in one position. This region is more negatively charged
What is a polar molecule?
A molecule with an uneven distribution of charge is polarised or is a polar molecule. The negative region of one forms a weak electrostatic bond with the positive region of another as opposites attract. Collectively they form important forces that alter physical properties of molecules (especially for water)
Polymers industrially produced?
Polythene and polyesters
Polymers naturally made by living organisms?
Polysaccharides, polypeptides and polynucleotides
