5 Written questions
5 Matching questions
- Protein Properties
- a N-acetyl neuraminic acid; important sugar acids in bacterial cell walls.
- b general formula (CH2O)n; subunits linked by glycosidic bonds; poly hydroxy aldehydes or ketones and their derivatives; functions- structural support, nutrient and energy.
- 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
- d one or more double bonds (mostly between 9 and 10); Plant and animals in cold climates.
- 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
- can be done with RNA or ssDNA
- The inhibitor binds to ES complex so that further reaction does not take place - either forward or backward.
- +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.
- m. wt. = 10^6-10^9; ribosomes, enzyme complexes, contractile systems, microtubules.
- Fats or triglycerides= glycerol plus one or more fatty acids.
5 True/False questions
precursors from the environment → CO2, H2O, NH3, N2, etc.
Fatty Acid → long hydrocarbon chain ending in a carboxyl group -COOH
Macromolecules → Usually polymers; usually dehydration synthesis also called condensation rxn.
Nucleoside → Sugar + Base + Phosphate; N-glycosidic bond- base; phosphodiester bond- phosphate
Ribosomes → proteins and RNA