What is the difference between polymerization and polycondensation reactions? Select one: a. There are subproducts of polymerization b. Polymerization and polycondensation are synonyms c. There are no subproducts of polycondensation d. Synthesis of a polysaccharide is polycondensation, synthesis of polyethylene is polymerization
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- Many antibiotics alter the rate of reaction for enzymes that produce and then cross-link the strands of this polymer together. The image below shows the structure of one antibiotic called penicillin as compared to the portion of the peptidoglycan that undergoes cross linkage. Condon A HS. CH CH CH N-CH cooo Cand cooo wDAla-D-Ala [S] 2. Using the graph above, which condition do you predict was the penicillin condition? 3. Explain how penicillin effects the enzyme. 4. Why it is important to take the full dosage of antibiotics. Briefly explain 5. Is peptidoglycan still being produced in the portion of the graph marked by the circle in condition B?What is the purpose of acrylamide and bis-acrylamide? in SDS-Page Gel1b. Indicate an important difference between polyethylene produced using Ziegler-Natta polymerization compared to normal addition by radical mechanism. 1c. Why secondary forces in polymers have a very significant effect on the overall properties of polymers?
- Supercoiled is: A linear/circular material that is shaped like a spring. O b. A linear/circular material that is wound back upon itself. O c. A linear/circular material that forms a large, loose coil.The alkaline hydrolysis of pAUGCAGC oligonucleotide produces: O A. Uridine 2'-monophosphate, uridine 3'-monophosphate, cytosine 2'-monophosphate O B. Adenosine 2'-monophosphate, adenosine 3'-monophosphate, adenosine 21,5'-bisphosphate OC. Guanosine 2'-monophosphate, guanosine 3'-monophosphate, cytosine 3'-monophosphate O D. Cytidine 3'-monophosphate, guanosine 2'-monophosphate, adenine 2'-monophosphate O E. Adenine 3,5'-bisphosphate, guanine 2,5'-bisphosphate, uridine 2'-monophosphate O F. Uridine 2'-monophosphate, uridine 3'-monophosphate, guanine 3'-monophosphateWhy is agarose an ideal gel matrix for electrophoresis experiments? Because it forms a liquid at all temperatures. Because it is un-ionized and uncharged Because it is positively charged fs f6 f7 fg fg f1o $ [8 19 4 6 7 8. 4. 5 R Y F G J 2 K エ
- 3. A. Give steps with equations of Chain (or radical) polymerization reaction for fabrication of polyethyl acrylate. B. Discuss how do free radicals effect living organisms and cells.The synthetic process by which monomers are covalently linked is (a) hydrolysis (b) isomerization (c) condensation (d) glycosidic linkage (e) ester linkageWithin the image, identify base-pairing nucleotides by dragging the nucleotide name to its target. A adenine un 4 O 6 H-bond -H-N 1N-H-- N-H -N3 O O wn N-H iN H-bond --H-N3 B guanine с cytosine D thymine
- A toxin is glycopeptide, X that is composed of an octapeptide and a saccharide Y. Glycopeptide X is composed of a glycan Y and an octapeptide. The octapeptide was cleaved by trypsin, giving 2 tetrapeptides of exactly the same composition except for its N-terminals. When the octapeptide was cleaved by chymotrypsin, it gave a pentapeptide and a tripeptide. DNFB treatment gave DNP-ser. The composition of the octapeptide is lys, ser, trp.and leu. The leu:ser ratio is 4:1. 1. What is the sequence of this octapeptide? Saccharide Y is a tetrasaccharide. To determine its linkages, a person methylated glycopeptide X effectively methylating saccharide Y. Cleavage gave the peptide and the following products: 2,3,4-tri-O-methyl-a-D-glucopyranoside acid, 2,3-di-O-methyl-ß-D- glucopyranoside, 1,3,4-tri-O- methyl-ß-D-glucuronic acid treatments to the isolated tetrasaccharide gave the following results: and 1,4,6-tri-O-methyl-ß-D-N- acetylgalactosamine. Further 1. A. Treatment of saccharide Y with an…Why do we use a stacking gel in SDS-PAGEIdentify the base shown below. Drag the correct base to the rectangle in the image O HN H₂N Adenine Cytosine N N N ZI 5 methyl cytosine H Guanine Thymine