What is the generally held chemical basis for fixation in a) glutaraldehyde and for fixation in b) osmium tetroxide ?
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- What is the generally held chemical basis for fixation in a) glutaraldehyde and for fixation in b) osmium tetroxide ?
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- a) What are the differences between the synthetically prepared hydroxyapatite and biologically derived hydroxyapatite? b) How do you define porous and dense hydroxyapatite? Please explain the differences? c) What is the importance of Ca/P ratio? Give example.1) The smallest monsaccharides that can exist are: a) Pentoses b) Trioses c) Hexoses d) Tetroses 2) The structure of D-galactose differs from that of D-glucose at: a) carbon 1 and carbon 2 b) carbon 6 c) carbon 5 d) carbon 4 4) Which of the following pairs of monosaccharides contain different number of carbon atoms? a) gulose and tagatose b) glucose and galactose c) glyceraldehyde and dihydroxyacetone d) fructose and riboseWhat type of reaction does Ribulose-5-phosphate isomerase catalyze? A) isomerization B) not enough information to tell C) cleavage of ribulose-5-phosphate D) ribulose-5-phosphate
- Give the significance of the following in the biosynthesis of shikimatederivatives: A) benzoic acid B) cinnamic acid. In emulsion polymerization, the principal place where the monomer polymerizes is a) monomer droplets b) aqueous phase c) swollen surfactant micelles d) surface of reactor . Which of the following polymers is least likely to be optically transparent? a) atactic polystyrene b) isotactic polystyrene c) an ethylene/propylene random copolymer d) a styrene/butadiene random copolymer High pressure, high temperature free-radical polymerization of ethylene produces a) HDPE b) LDPE c) PP d) LLDPE1)Since bromelain is an endopeptidase, what types of bonds does it work on? 2)Since bromelain is an endopeptidase, what types of bonds does it work on?
- Can someone see if I have done this correct? a) beta-glucose b) beta-galactose c) I dont know?? d) N-acetylglucoamine e) FructoseWhen D-gulose forms a ring structure, a) b) a ketone and a hydroxyl group react to form a hemiketal. the ring is unstable at neutral pH. the ring contains four stereogenic centers. an intramolecular reaction creates a glycosidic bond.Which of the following polymers is least likely to be optically transparent? a) atactic polystyrene b) isotactic polystyrene c) an ethylene/propylene random copolymer d) a styrene/butadiene random copolymer High pressure, high temperature free-radical polymerization of ethylene produces a) HDPE b) LDPE c) PP d) LLDPE
- a) What amino acid is metabolite 1? b) What kind of reaction occurs when 1 is converted to 2? c) What kind of enzyme performs the reaction converting 1 to 2? d) What biomolecule (a) is needed for the reaction to occur? e) What biomolecule (b) is produced in addition to 2? f) What happened to metabolite 3 when it was converted to 4? g) What kind of enzyme might perform the conversion of 3 to 4? h) What cofactor(s) would be required in the conversion of 3 to 4? i) What kind of reaction happens when 4 is converted to 5? j) What kind of reaction happens when 5 is converted to 6? k) What is the name of metabolite 7? l) What is the name of metabolite 8?What term best describes the isomeric relationship between alpha-D- glucopyranose and alpha-L-glucopyranose? A) structural isomers B) enantiomers C) epimers D) diastereoisomers, but not epimers E) not isomersWhat is the trade name of Desipramine?