Biochemistry

• Give 3 comparisons between organic and inorganic compounds: Inorganic compounds are more stable than organic compounds. Inorganic compounds are more soluble than organic compounds. Inorganic compounds are more reactive than organic compounds.
• What is VSEPR?

  Valence Shell Electron Pair Repulsion
• Define the VSEPR theory?State common bond angles

  Electron pairs will arrange each other to minimize the repulsion effect. 109.5, 120, 180
• Normally forms 2 covalent bonds and has two unshare electrons?

  Oxygen'
• forms 4 covalent bonds and has no unshared electrons?

  Carbon
• Forms 1 covalent bond and no unshared electrons?

  Hydrogen
• Forms 1 covalent bond and has 3 unshared electrons?

  Halogens
• Forms 3 covalent bonds and has one unshared electrons?

  Nitrogen
• Differentiate ester and carboxylic acid

  Ester - COOR, carboxylic acid - COOH
• Differentiate alcohol and amine

  Alcohol - COH, Amine - NH2
• Differentiate aldehyde and ketone

  Aldehyde - C=O and bonded to two hydrogens while ketone is C=O but bonded to two carbons
• What is the ultimate goal of biochemistry?

  explain all life processes in molecular detail
• What is the 4 functional groups in an amino acid (Amino Acid Structure)?

  R group, Carboxylic acid, Amine, and carbon in the middle
• The earliest cells that arose in the rich mixture of organic compounds, the primordial soup of were almost certainly what?

  Chemoheterotrophs
• theory that says that organic compounds only came or produced by living organisms and not by chemical means

  vital force theory
• oparin's theory


  lightning reacts to ammonia, methane, water vapor to form organic compounds
• what is consistent in RNA that merely proves RNA World Hypothesis?

  peptide bonds in ribosomes of RNA
• first catalyst and information repository

  RNA