MICROSCOPE In this experiment‚ we have learned several basic molecular biology techniques. Here they are; Simple staining: Only one type of dye used for simple staining and it stains all cells the same color. Creating contrast between cell and background to observe cell morphology is aimed. Differential staining: A differential stain uses more than one dye and stains different kinds of organism with different colors. Positive staining: If cell itself is stained it is called positive staining. It
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using different temperatures. c. fossil fuels ______4. It consist of paraffin wax‚ beeswax mixed with coal tar-dye. d. foot powder ______5. The protein where sulfanilamide was synthesized e. fractional distillation ______6. It is a preparation of soap‚ tragacanth‚ and glycerin to soften the skin f. chemotherapy ______7 . Compounds which fasten dyes g. lanolin ______8. Wool grease from sheep h. mordants ______9. Study of fighting diseases-causing
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02 II (2) | (a) The figure below shows the initial set-up of a model of the mass flow hypothesis for translocation in the phloem.Model of mass flow hypothesis (i) It was observed that the dye moved from osmometer X to osmometer Y during the course of the experiment. Explain this observation according to the mass flow hypothesis. (3 marks) (ii) Explain the function of tubing M in this model. In plants‚ which tissue serves the same function as tubing M? (3
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Osmosis is the movement of water across a membrane. It always navigates to the area of the membrane with a higher solute concentration. We take a closer look at the effects of osmosis in this lab through the examination of red blood cells (sheep)‚ plant cells (elodea)‚ and active transport in yeast. Under the microscope‚ we can determine the effects on plant and animal cells exposed to hypotonic‚ hypertonic‚ and isotonic sodium chloride solutions. Plant cells have a cell wall; however‚ animal cells
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play a very important role in microbiology and pharmaceuticals. The samples of milk were collected from the market surrounding places like Brahmapuram‚ Thiruvalluvar and Katpadi. Its nutritional quality was analysed by pH determination‚ Methylene Blue Dye Reduction Test Assay‚ and the cost of extracting casein was analysed using the principles of bioprocess economics‚
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greater polar molecule. Water is more polar than pentane and pentane is less of a polar molecule than methanol when it comes to comparing the mixture of water/pentane and the mixture of pentane/methanol. When food dye was added‚ it was able to form a homogeneous mixture of food because the food dye was a polar molecule‚ which made it water soluble. The next part of the lab was spent observing the effect chain length has on miscible alcohol in water. The result in table 4 matches the hypothesis that the
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together. It’s not against any law to do any of these things. Homosexuals can even have a real wedding. It’s actually done all the time. Entire industries have sprung up from San Francisco to New York City serving the needs of same-sex lovers looking to tie the
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“Personal Expression”. The 70s gave off that casual look. During this time a lot of religions‚ and cultures was showing off because they were free to express themselves in that manner. They were more hippie during this period. Meaning‚ they would tie-dye their jeans or shirts‚ and their bell-bottom jeans. Bell-bottoms moved once again into standard design; Sonny and Cher designed bell-bottoms in the US in the 1970s. They were popularized by wearing their famous network show. Also in the 1970s designer
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RESEARCH PROJECT PROPOSAL 1 Eco Pen: Recycled Ballpoint pen Ink from Motor Oil Proponents: ACLAN JR‚ VIRGILIO P. ALDAMA‚ ALLIAH A. DE CHAVEZ‚ MYLENE JENVER E. MANGERON‚ AIRELL M. MASONGSONG‚ JOHN MICHAEL L. Colegio de San Juan de Letran - Calamba RESEARCH PROJECT PROPOSAL 2 Significance: Can you imagine how many historical documents were written with ink? What if ink were not invented? Probably we don’t have this idea or maybe this paper. Inks and oils
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during the acid-fast procedure‚ they are able to retain the primary dye even when decolorized by a powerful solvent known as acid alcohol. Most other bacterial genera are easily decolorized by acid alcohol. Ziehl/Neelsen Acid-Fast Staining Procedure In later years‚ Ehrlich’s technique was improved upon by two microbiologists‚ Ziehl and Neelsen. Like Ehrlich‚ Ziehl and Neelsen’s procedure requires heat to force the primary dye through the cell wall. Another microbiologist‚ Kinyoun‚ developed a
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