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5 Written questions

5 Matching questions

  1. Unsaturated
  2. Carbohydrates
  3. Lipids
  4. Protein Properties
  5. NAG
  1. a N-acetyl neuraminic acid; important sugar acids in bacterial cell walls.
  2. b general formula (CH2O)n; subunits linked by glycosidic bonds; poly hydroxy aldehydes or ketones and their derivatives; functions- structural support, nutrient and energy.
  3. c Allosteric proteins- dual affinity (hemoglobin); denaturation and re-naturation of proteins; enzymatic activity (catalysts)- apo enzyme and holo enzyme; lowering of activation energy; E+S <-> [ES]-> Product + Enzyme
  4. d one or more double bonds (mostly between 9 and 10); Plant and animals in cold climates.
  5. e fats; long complex hydrocarbon chains; triglycerides, phospholipids in membranes, steroids like cholesterol; are non polar; function in energy storage and the structure of membranes; CH3(CH2)nCOOH n=14-22

5 Multiple choice questions

  1. can be done with RNA or ssDNA
  2. The inhibitor binds to ES complex so that further reaction does not take place - either forward or backward.
  3. +NH3-CHR-COO-; dipolar charges neutralize each other; side chain determines the charge. Carboxylic group and amino group form the peptide bond (H2O leaves). Peptide glycosidic bonds most important; 150 in our body only 20 make proteins. you have 3AA that make a tripeptide 3^3= 27 different combinations. more than 200 AA in a protein on average.
  4. m. wt. = 10^6-10^9; ribosomes, enzyme complexes, contractile systems, microtubules.
  5. Fats or triglycerides= glycerol plus one or more fatty acids.

5 True/False questions

  1. precursors from the environmentCO2, H2O, NH3, N2, etc.


  2. Fatty Acidlong hydrocarbon chain ending in a carboxyl group -COOH


  3. MacromoleculesUsually polymers; usually dehydration synthesis also called condensation rxn.


  4. NucleosideSugar + Base + Phosphate; N-glycosidic bond- base; phosphodiester bond- phosphate


  5. Ribosomesproteins and RNA