D-glucose D-mannose D-galactose D-Pscicose D Fructose D-Sucrose
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- Thin Layer chromatography (TLC). Explain the biochemical principle behind the separation of carbohydrates molecules by TLC as performed in practical 5. Explain which properties molecules must have to travel a short and large distance, respectively. Ketohexose sugars can form 8 different stereoisomers. How many of those isomers can be distinguished and resolved by TLC as performed in the practical and why? no more than 100 words totaltopic: ISOLATION AND CHARACTERIZATION OF CARBOHYDRATES 1. Erythrose is an aldoterose. Describe the result when it is subjected to each of the following tests:a. Molisch’s Testb. Barfoed’s Testc. Benedict’s Testd. Seliwanoff’s Test2. Illustrate the reaction and identify the principle involved in the Nelson test.Assignment on KetohexosesConstruct the structure of the following enantiomers or mirror images:1. D and L Fructose2. D and L Allulose3. D and L Sorbose4. D and L Tagatose
- (99) Which of the following processes does ciprofloxacin interfere with in order to prevent bacterial growth?(A) Cell wall synthesis (B) DNA repolicsation (C) Electron trsansport (D) Protein Synthesis (E) RNA chain elongationBriefly describe the function of uridine triphosphate (UTP) in carbohydratemetabolism.15. Rank the solubility of the following fatty acids in water. A. C<E<B<D<F<A B. A<F<D<B<E<C C. C<E<B<F<D<A D. A<D<F<B<E<C 16. Using the same information in no. 15, rank the solubility of the fatty acids in hexane.* A. C<E<B<D<F<A B. A<F<D<B<E<C C. C<E<B<F<D<A D. A<D<F<B<E<C
- I. Buffer Preparation A researcher in Biochemistry is isolating α-glucosidase enzyme from malted wheat flour. The protocol requires the use of 2.00L of 0.225 M of lactate buffer with pH of 4.25. How will he/she prepare this buffer from 2.00 M lactic acid solution and solid sodium lactate (NaC3H5O3) The Ka of lactic acid is 1.38 x 10-4. [ Na=23.0, C=12.0, H=1.01, O=16.0 g/mol]microbiology practice questions ungrades help!ASAP Overall fermentation involves forming ----- end products from the ----- breakdown of carbohydrates or sugars. Microbial fermentation initially involves ------ pathways, which converts glucose into 2------ molecules. Phenol red or PR is a ------ indicator that turns--------- when PR carbohydrate broth is acidic and ------ when PR carbohydrate broth is alkaline/basic. ------ tubes are placed into PR carbohydrate broth tubes in order to trap gas in the form of a -------.38. Glycogen isolation 1. The liver is a major storage site for glycogen. Purified from two samples of human liver, glycogen was either treated or not treated with a -amylase and subsequently analyzed by SDS-PAGE and western blotting with the use of antibodies to glycogenin. The results are presented in the adjoining illustration on the next page. (a) Why are no proteins visible in the lanes without amylase treatment? (b) What is the effect of treating the samples with a - amylase? Explain the results. (c) List other proteins that you might expect to be associated with glycogen. Why are other proteins not visible?
- 17. The prefix glycol comes from the Greek word that means “sweet” and the suffix lysis fromGreek word that means “to loosen” Explain how the meaning of these word parts arerelated to definition of glycolysis.How does stereoisomerism features affect the pharmacodynamic effect? discuss broadlyCreatinine Determination: Mention some specific methods based on principles other than Jaffe Reaction