PROCEDURE Part I Setting Up Experiment 2D: Separation of a mixture by Paper Chromatography Objectives: 1. To assemble and operate a paper chromatography apparatus 2. To study and the significance of Rf values 3. To test various food colorings and to calculate their Rf values 4. To compare measured Rf values with standard Rf values 5. To separate mixtures of food coloring into their components 6. To identify the components of mixtures by means of their Rf values Materials / Apparatus: See “Health
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number in daughter cells | 46 | 23 | Number of daughter cells | 1 | 2 | Discussion The blue chromosomes were inherited from one parent‚ and the red chromosomes were inherited from the other parent. The exchange of color between nonsister chromatids represents the crossing-over that occurred during meiosis. During meiosis homologous pairs align independently whereas during mitosis chromosomes align dependent. Conclusion In this lab I have learned that Mitosis produces 2 daughter cells that are
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TOPIC: Spring Mass Oscillator OBJECTIVE: To determine the spring constant (K)‚ using mass system. APPARATUS: STEEL RULE SPRING STOP WATCH TAPE MEASURE SLOTTED MASS THEORY: In classical mechanics‚ a harmonic oscillator is a system which ‚ when displaced from its equilibrium position‚ experience a restoring force‚ F‚ proportional to the displacement‚ X‚ according to Hooke’s Law; F = – KX = mα …………………………………. Where‚
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Purpose This experiment shows how different concentrations of acids and bases in a solution affect its pH level. When acids and bases are combined in a solution‚ they neutralize each other. This means that depending on the concentration of both acids and bases in a solution‚ the pH will vary. A neutral pH level is 7; anything below that level is known as an acidic solution‚ while anything above is known as a basic solution. To find out the pH‚ the solutions will be diluted and tested with different
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of the consequences of excessive drinking. After connecting with her‚ I wanted to know if alcohol concentration in spirits would affect the cells in the body. Thus‚ I decided to test my theory by adapting a class beetroot experiment to my investigation. The aim of this experiment is to investigate the effect of alcohol concentration on a biotic cell membrane. The human body cannot live long with damaged cells because they are the building blocks of life. Cell membranes are phospholipid bilayers meaning
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CONCLUSION Leisure and recreational activities engaged in by the majority of adults‚ teenagers and children were generally passive or non-active‚ and tended to occur in the home. There is‚ however‚ a desire for more variety‚ particularly for activities outside the home. Shortage of time and money limited leisure opportunities for both adults and teenagers‚ along with the shortage of entertainment venues and transport difficulties reported by teenagers. Choices about leisure and recreation‚ the type
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A friction free economy is a hypothetical business environment where all expenses and limitations connected with transactions are non-existent. For my research‚ I found two articles. Using the CSUF library search engine‚ I found an article titled “The Friction-Free Economy” written by John Case‚ and “Friction-Free Economy Rhetoric Holds a Time Bomb” written by Gary Chapman. I decided to use these two articles because they were written around the same time‚ and both have the same concept involving
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in this experiment: to determine the equilibrant force using the force table and the component method‚ to determine the unknown forces using the first condition and second conditions for equilibrium‚ to locate the centre of gravity of a composite body‚ and to demonstrate rational equilibrium. 2. Theory Equilibrant is equal in magnitude to the resultant but oppositely directed. The first condition of equilibrium is when a body at rest or moving with uniform velocity has zero acceleration. The center
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The Manland Experiment 1. The Manland experiment lasted only one weekend in one store. The marketing advantages and disadvantages of expanding it to other stores? Do you think IKEA should do more with this idea? Why or why not? The advantage was this was an attempt to continue IKEA’s image as family-friendly with the goal to appeal to all men as an environment offering a rewarding shopping experience. The area was set up for men to play video games or watch sports while their wives or girlfriends
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Discussion Case: Timberland’s Model of Corporate Social Responsibility 1. I would characterize Timberland’s exercise of its corporate power in society as a positive influence. They really draw their employees in and encourage them to give back to the community by serving in many area activities. Timberland is engaging in multiple stakeholders in its business operations‚ because their company is benefiting the employees and their families‚ and also the society by the time they spend giving
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