5 Written questions
5 Matching questions
- Polysaccharides (glycans)
- Important Cofactors
- a 10s-100s of polysaccharides; storage molecules, i.e., cellulose, chitin, glycogen; linear or branched; made of similar or different subunits.
- b the actual sequence of the amino acids
- c NAD+, NADP+, FAD, Coenzyme A
- d m. wt. 10^3- 10^9; nucleic acids, proteins, lipids, polysaccharides. 4 most important to study.
- e an aggregation of two or more individual polypeptide chains; polymerase- polymeric heteromeric; hemoglobin- homomeric 4 subunits.
5 Multiple choice questions
- 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
- antiparallel orientation of complimentary strands; DNA is supercoiled in the cells; denaturation and renaturation. ssDNA absorbs more light. RNA can compete with ssDNA hybridization.
- CO2, H2O, NH3, N2, etc.
- m. wt. 100-350; nucleotides, amino acids, monosaccharides, fatty acids, glycerol
- occupy the active site
5 True/False questions
Feedback Inhibition → End-product allosterically inhibits the action of first enzyme in pathway. prevents cell from wasting resources.
Enzyme Activity → temperature- denature and breaks H bonds; pH; substrate concentration; inhibitors (antibiotics) inhibit enzymatic functions
SImple Proteins → Fats or triglycerides= glycerol plus one or more fatty acids.
Saturated → one or more double bonds (mostly between 9 and 10); Plant and animals in cold climates.
Secondary → The overall 3D structure of the polypeptide chain. Held together by different bonds: peptide, ionic, hydrogen, covalent, sulfhydryl, etc. Prions are proteins that don't take their correct 3D shape and are harmful; mad cow disease.