Biochem 1 Flashcards
2 Main types of bonds
Covalent and Non-covalent
Connections that involve sharing of outer shell electrons
Covalent Bond
Unequal sharing of electrons
Polar Covalent Bond
Equal sharing of electrons
Non-polar covalent bond
The affinity of an atom for electrons
Electronegativity
Dipole-dipole interactions between a positive dipole H on one molecule and a negative dipole O (or N or S) on a neighboring molecule, Non-covalent
Hydrogen Bonds
Transient electrostatic interactions between permanent or induced dipoles, noncovalent
Vander Der Waals Forces
3 types of Vander Der Waals
Dipole-dipole, dipole-induced dipole, induced dipole- induced dipole
Attractions between oppositely charges molecules (“electrostatic interactions”), when they occur between amino acid side chains of proteins = salt bridges
Ionic Bonds
General Formula (CH2O)n
Monosaccharides
monosaccharide with an aldehyde
aldohexose
monosaccharide with a ketone
ketohexose
monosaccharides as a 6 atom ring strucutre
Pyranose
monosaccharides as a 5 atom ring structure
Furanose
This bond can form disaccharides or polysaccharides from monosaccharides
Glycosidic bonds