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- Polymers can be divided into natural polymers such as DNA, proteins and cellulose, and purely synthetic polymers such as polyethylene and teflon. Describe the basic process of polymerization of the two purely synthetic polymers and the usage each of them in industry and households.In nature, which type of polymers are dominant and why.In nature, which type of polymers are dominant and why. (Hint: condensation or chain polymers!)
- Flory-Huggins Theory. How are polymers modeled in the theory, and what does the theory predict? What are LCST, UCST, and ‘Good Solvent.’Propose mechanisms for the formation of addition and condensation polymers, and use those mechanisms to explain why the polymers have the observed molecular structures.Question: Outline methods for the production of vinyl polymers using bulk methods. Vinyl polymers are polymers made from vinyl monomers i.e. small molecules containing carbon-carbon double bonds. When polymerized, the ethylene molecules are joined along the axes of their double bonds, to form a long chain of many thousands of carbon atoms containing only single bonds between atoms.
- Give introduction to Chain-Growth Polymers :MICROBIOLOGY Help. those are practice questions NOT graded ones! :) --------- is the product generated by ornithine decarboxylation, and it smells like -------------. Which of the following is added to decarboxylase media that turns purple when conditions are alkaline/basic and yellow when conditions are acidic? Lysine, Glucose, ornithine, Broom Cresol Purple, Phenol red An acidic environment is inhibitory to decarboxylase activity. true or false? Lysine decarboxylase media is yellow after incubating an organism in it at 37 degrees for 24 hours. Which of the following can be interpreted from this result? The organism did not grow so lysine decarboxylase activity could not be determined. The organism is negative for lysine decarboxylase. The media is too acidic to determine lysine decarboxylase activity. The organism is positive for lysine decarboxylase. Mineral oil is added to the top of decarboxylase media so more oxygen is available for glucose fermentation. True or False?explain why polymers melt over a range of temperatures unlike low molecuar weight materials weight materials which usually have a sharp melting point
- Which of the following statements concerning sugar polymers is false? Sugar polymers may vary both in the composition of the sugar monomers and in the types of connecting glycosidic bonds Linear polymers are more water-soluble than branched ones. Branched polymers are more water-soluble than linear ones. Branched polymers have one non-reducing end and many reducing ends.Key tips for extraction different type of molecules; lipids, proteins, sugar, nucleus acidCONSTRUCTIVE RESPONSE. Answer the following questions. What are the requirements for molecules to form hydrogen bond? (What atoms must be present and involved in such bonds?) How are hydrogen bonds involved in the transfer of genetic information? How does water dissolve polar and ionic compounds? Explain the process of these interactions. How does water affect the structure of biomolecules? What is the difference between a polar molecule, a non-polar molecule, and a dipole molecule? How do these molecules affect the intermolecular forces? Discuss the difference between hydrophobic, hydrophilic, amphipathic, and amphiphilic molecule
