marks) 4. For the following chemical reaction: C6H12O6 + 6 O2 → 6 CO2 + 6 H2O + energy identify a. the substance(s) being oxidized. b. the substance that is reduced. Total: 17 marks 5. For each of the following four macromolecules‚ list their i) monomer(s). ii) functional groups. iii) linkage type. iv) primary function. Macromolecules: a) Carbohydrates b) Proteins c) Lipids d) Nucleic acids (Total 8 marks: 1⁄2 mark for each correct answer) 6. Show how a peptide bond forms between the two amino acids
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Title : Investigation of Action of Saliva and 3M Hydrochloric Acid in Two Carbohydrate Solutions Objective : To investigate the action of saliva and 3M hydrochloric acid in two carbohydrate solutions Results : Table 1: Observations Conclusions Solution A Benedict’s test : Initial blue solution changed to brick-red precipitate. Little amount of brick-red precipitate suspended in solution. The solution was translucent. Iodine test : Yellowish-brown remained the same. Abundant amount of
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original organic matter containing comlex compounds‚ e.g.‚ carbohydrates‚ protein and fats is broken down through the influence of water (known as hydrolysis) to simple water soluble compounds. • The polymers (large molecules) are reduced to monomers (basic molecules). • The process takes about a day at 25oC in an active digester. Biogas production from waste biomass: • Biomass if left to decompose in open air‚ is acted upon by aerobic bacteria (bacteria that require oxygen for their
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Background Theory. Polyethylene Polyethyene is a type of polymer that is used in our daily life. Polyethylene(abbreviated PE) is a thermoplastic polymer‚ meaning that is can be melted to a liquid state and remolded as it returns to a solid state. PE is chemically synthesized from ethylene‚ a compound that is usually made from petroleum or natural gas[1]. The main mechanical properties of PE are the ultimate tensile strength and the modulus of elasticity. There are different types of Polyethylene
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Diffusion across Biological Membranes: A simulation Introduction Diffusion is the process by which collisions between molecules cause to spread apart. This movement is described as movement from an area of greater concentration to an area of lower concentration. Hence‚ diffusion continues until the molecules are equally distributed. This is to ensure that molecules have reached a state of equilibrium. Diffusion occurs spontaneously‚ no energy is involved. In cells‚ Diffusion occurs through
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The present invention relates to polyvinyl chloride plastisol compositions‚ for example sealant compositions. In the manufacture of automobiles‚ the automobile body is initially primed with a coating composition to prevent corrosion of the metal. This can be done in a number of ways although generally it is performed by cationic electrodeposition using the auto body as the cathode. Once the automobile body has been primed in this manner‚ subsequent steps in the assembly are carried out. These
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composite system for the better physical and chemical attachment of reinforcement and matrix phases. Objectives: Due to the hydrophilic nature of jute‚ the interfacial interaction with novolac epoxy resin is weak. The modification with appropriate monomers could provide better interfacial bonding between jute and novolac epoxy resin which leads to improve mechanical and chemical properties of final composite compare to the unmodified fiber reinforced composite. Methodology: Jute fabric collected
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long chainlike molecules called polymers. Cellulose derivatives are made from cellulose‚ a naturally occurring polymer; casein is also a naturally occurring polymer. Synthetic resins are polymerized‚ or built up‚ from small simple molecules called monomers. Plasticizers are added to a binder to increase flexibility and toughness. Fillers are added to improve particular properties‚ e.g.‚ hardness or resistance to shock. Pigments are used to impart various colors. Virtually any desired color or shape
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system‚ which determines the pH level of dilute aqueous solutions. In this laboratory‚ the data collected from the experiment will be used to graph the titration curves which help to identify an unknown amino acid. IntroductionAmino acids are simple monomers which are strung together to form proteins. Amino acids play a key cellular role in structure and function. Proteins themselves participate in nearly every physiological event in the cell. Since all amino acids contain at least one amino and one
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environmentally friendly plastic should not compromise the quality or economic competitiveness of the products. As a solution to this problem‚ VTT Technical Research Centre of Finland “has developed a technique that enables the production of the PGA monomer glycolic acid from bio-based materials more efficiently than before.” At current development levels‚ which is still in its primary stages‚ bio-based PGA plastic is between 20 and 30 per cent stronger than PLA‚ most popular biodegradable plastic at
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