Be sure to request information or help if you are in doubt on any point. SUBSTANCE HAZARD PRECAUTION Methylated Spirit (ethanol‚ methanol‚ pyridine) Harmful vapour Harmful to skin Irritant to eyes Ventilate room Wear gloves Wear goggles Dyes (bromophenol blue‚ xylene cyanol‚ ponceau 4R‚ orange G) Irritant (xylene cyanol) Wear gloves TBE buffer (boric acid‚ EDTA‚ tris base) Harmful Wear gloves Agarose Irritant (eyes‚ powder) Handle carefully Wear gloves Wear goggles Detergent
Premium DNA Molecular biology Polymerase chain reaction
lightstick. There need to be two chemicals that interact to release energy and also a fluorescent dye to accept this energy and convert it into light. Although there is more than one recipe for a lightstick‚ a common commercial lightstick uses a solution of hydrogen peroxide that is kept separate from a solution of a phenyl oxalate ester together with a fluorescent dye. The color of the fluorescent dye is what determines the resulting color of the lightstick when the chemical solutions are mixed. The
Premium Chemical reaction Oxygen Light
Candy Chromatography: What makes those colors? The point of doing this project is to use paper chromatography to see which dyes are used in the coatings of your favorite colored candies. Chromatography is a technique for separating mixtures. Chromatography can be used to separate specific components from a complex mixture‚ based on molecular size or other chemical properties. It can also be used to identify chemicals‚ for example crime scene samples like blood‚ drugs‚ or explosive residue. Highly
Premium
Although‚ bacteria are defined and visible noted. Most of the time they are single round cells. In direct stain with crystal violet‚ again background is colorless and glossy. Bacteria is blue and some uneven grouping is noted. In this example the dye methylene blue stain is used. In indirect stain with Congo red stain‚ background is again colorless and glossy. Bacteria are orange to red and fine defined. At smaller magnified example they are grouping in uneven clusters‚ but in highest magnifier
Premium Bacteria Microbiology
To do this successfully I will need to alter the surface area of the beetroot cells accurately and then measure if any and how much dye is let out. I can hopefully then look at my results and then find a relationship between the two factors and be able to explain exactly why any changes took place. PREDICTION For this experiment I would expect the leakage of dye to increase as the surface area increases and this is based on the knowledge of the formation of membranes. Membranes are made of two
Premium Cell membrane Cell Surface area
the complete DNA sequences of many animal‚ plant‚ and microbial genomes. The first DNA sequences were obtained in the early 1970s by academic researchers using laborious methods based on two-dimensional chromatography. Following the development of dye-based sequencing methods with automated analysis‚[1]DNA sequencing has become easier and orders of magnitude[clarification needed] faster. [pic] [pic] DNA Sequence Trace |Contents
Premium DNA
Introduction Photosynthesis is a redox reaction which requires carbon dioxide‚ water and light to produce water and a 6-carbon sugar. The process of photosynthesis consists of two parts‚ a light reaction and a light-independent reaction. The method of changing light energy into chemical energy for the formation of NADPH and ATP is done through the light reactions. Light independent reactions use carbon dioxide and the products of light reactions (ATP and NADPH) to form compounds such as glucose
Premium Photosynthesis Oxygen Carbon dioxide
upon viewing under the microscope. Iodine-Potassium-Iodide (IKI) and Sudan IV were the dyes used to stain specific parts of the plant tissue. IKI is used to stain structures containing starch which is indicated by the color change from brown to reddish-brown or blue-black. The stem‚ leaf‚ and root cross sections all contain starch. The roots stained the darkest meaning starch is stored more in them. Sudan IV dye stains lipids into pink to red color. All cells in a plant tissue contain lipids so the
Premium Leaf Plant stem Plant anatomy
Cotton fabric printing with reactive dye using guar gum A 3-per cent concentration of Guar Gum will be the better alternative for large-scale printing of cotton in home furnishing industries‚ find Priyanka Kesarwani and Archana Singh. Cotton is the world ’s most used fibre. It is cool‚ soft‚ comfortable and the principal clothing fibre of the world. Its production is one of the major factors in the world ’s prosperity and economic stability. In the textiles industry more than 78%
Premium
Lab 1: Introduction to Science Exercise 1: Data Interpretation Table 4: Water Quality vs. Fish Population Dissolved Oxygen (ppm) 0 2 4 6 8 10 12 14 16 18 Number of Fish Observed 0 1 3 10 12 13 15 10 12 13 Questions 1. What patterns do you observe based on the information in Table 4? 2. Develop a hypothesis relating to the amount of dissolved oxygen measured in the water sample and the number of fish observed in the body of water. 3. What would your experimental approach be to
Premium Diffusion Molecular diffusion Hypothesis