made up to 4 tubes.One tube of unknown was made by mixing 1ml of DNS with 3ml sugar solution.A blank was prepared by adding 1ml DNS to 3ml distilled water.The tubes were covered with marble and were placed in a water bath for 5 minutes.They were cooled to room temperature and then read at 540nm against the blank. Results Below is the tabulated form of the absorbance reading obtained from the spectrophotometer at 540nm: Table 1: Absorption values of the 5 tubes Tube Absorbance(nm) Concentration(
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separate test tubes 4. We labeled the tubes as #1‚ #2‚ #3 and #4 5. We added 0.1 mol dm-3 of FeCl3 into tube #2 using a pipette until a color change was observed. 6. We added 0.1 mol dm-3 of KSCN into tube #3 using a pipette until a color change was observed. 7. We added 0.1 mol dm-3 of KCl into tube #4 using a pipette until a color change was observed. 8. We did not add anything to the tube #1 because we are going to use it for comparison purposes. Qualitative Data: Tubes | 1 |
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Next‚ transferred 200 uL of the crude extract to a set of microcentrifuge tube; the blank is created by adding 200 uL of the homogenizing buffer. Then 800 uL of pre-filtered dye reagent was added to each tube and vortexed for additional 10 seconds‚ followed by an incubation period of 10 minutes (Course Supplement for Bio 101‚ p. 71). We transferred 500 uL of the solution to the cuvette and
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semi-permeable membrane into the potato cells making the potato heavier. In my preliminary experiment i used 0 to 3 molar‚ 3 molar got lighter and 0 molar got heavier. This is a graph to show what i predict. Apparatus Boling tubes Boling tube racks A balance Stop clock Cork borer Measuring cylinder Scalpel Tile Potatoes Paper towels Diagram of experiment/apparatus. Step by step method 1. First using the cork borer we shall carefully extract 6 pieces of potato
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Dating back to the slave trade the drum has been used all over the world as a means of communication and self expression. Its broad variety of users includes the early African tribes and the Native Alaskan tribes‚ both using them for ceremonial purposes. The Africans brought drums with them to the Americas and helped to develop their popularity among American musicians. In the mid 1900’s drum sets were brought about. These revolutionary collaborations of percussive pieces started off with a pair
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Choosing baseline damper curves for ride. Last time‚ we discussed the process of choosing proper baseline spring rates. In this paper‚ we will continue the discussion on suspension components by simplifying the process of choosing appropriate baseline damper settings for ride. What is damping? In a spring-mass system‚ any displacement and release of the mass from its equilibrium position will cause the mass to oscillate. If the system were ideal‚ the mass would continue vibrating at a given frequency
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The connection between the images and sound in Fritz Lang’s “M” is extremely important to the overall feelings and how the film is experienced. Sound can be used to link‚ separate and enhance the imagery of a film. By using a combination of background music‚ off screen sounds and silences‚ Fritz Lang molds sound into an effect that is just as captivating and interesting as the visuals used. In the beginning of the film‚ children are grouped in a circle playing a game and singing a song which‚ given
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UNIVERSITY LEARNING CENTRE CODE: 07101 PERSONAL PROTECTIVE EQUIPMENTS FOR SCAFFOLDING WORK AT CONSTRUCTION SITE OF HOYSALA PROJECT‚ EDACHIRA‚ KOCHI. SUBMITTED BY HARIS MUHAMMED A project report submitted in partial fulfillment of the requirements for the degree of Bachelor of Science in Safety and Fire Management - 2011 of Sikkim Manipal University‚ India Sikkim-Manipal University Sikkim Directorate of Distance Education Syndicate House Manipal – 576 104 1 DECLERATION I‚ HARIS MUHAMMED
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to aseptically transfer bacteria from an unknown to a tube of liquid broth. Answer: To aseptically transfer bacteria from an unknown to a tube of liquid broth you have to flame the loop or wire before you begin to sterilize it. Then you remove the caps from the tubes and flame the mouths of the tubes to prevent air-borne contamination. Next‚ you have to pick up the inoculums or unknown culture by running the sterile loop or wire down into the tube. Once you get the inoculums‚ you drop it into the
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This time we entered another slide‚ tube like thing from the top of it. This time we mixed yet again with other liquids. Once again the watery slimy liquid that I saw in the human wet cave is back. These liquids were from everywhere though‚ I have a feeling that’s where they all go to come together. We are embarking on another journey‚ this time with everyone. We enter yet another set of tubes. But this time we went our separate ways. All the water that I had mentioned
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