MBioCh2

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Author:
victimsofadown
ID:
173232
Filename:
MBioCh2
Updated:
2012-09-25 05:37:41
Tags:
MBioTest1
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Description:
MBioTest1
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  1. Explain why H2O is the most important biological molecule, and give some characteristics that make it so vital to living organisms
    • High boiling point
    • Excellent solvent
    • Key role in chemical reaction
    • Temperature buffer to protect cell from external fluctuations
  2. Explain acid-base balance and the pH scale
    • pH = -log[H+]
    • Balance important for biochemical reactions
  3. Explain structure and chemistry of organic compounds
    • Contain C and H (carbon skeleton)
    • Functional groups are responsible for chemical properties
  4. Name/explain the 4 levels of protein structures
    • Primary: polypeptide strand (amino acid sequence)
    • Secondary: helix and pleated sheet
    • Tertiary: helix and pleated sheets folded into a unique 3D shape
    • Quaternary: relationship of several folded polypeptide chains, forming a protein
  5. List the 4 important organic compounds, their building blocks and elements
    • Carbohydrates: consists of CHO, oligosaccharides (2-20), polysaccharides (tens to hundreds) [starch, glycogen, cellulose]
    • Lipids: CHO, nonpolar, fatty acids, [fats, triglycerides, steroids]
    • Complex lipids (phospholipids) CHO+P/N/S
    • Protein: Amino acids, stereoisomers (D or L), peptide bonds, protein folding [enzymes, transporter proteins, bacterial toxins]
    • Nucleic Acids:¬†nucleotides, ¬†[DNA/RNA]

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