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Lab Reports Essay Examples

Osmosis Lab Report

The progress in which a cell is in its balanced state is called equilibrium. Diffusion is a functioning way for cells to reach their equilibrium. Equilibrium is reached by controlling what enters and exits the cell through a cell membrane that selectively filters molecules by slowing down their movement, allowing them to pass through, or…

Lab Report/Mealworms

The purpose of this experiment was to study the effects of ethanol on the cellular respiration of maelstroms. Cellular respiration is the process by which cells harvest the energy stored in food. It is the intake of oxygen and energy in the form of glucose, and the cells ability to break it down into carbon…

Lab Report

In this experiment, we used the law of definite proportions to find the chemical formula for a hydrated compound containing copper, chlorine, and water molecules locked in the crystal structure of the solid compound of Copper Chloride Hydrate. First we will gently heat a sample of the compound to drive off he water of hydration….

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Lab Report on Microbes Are Everywhere

I would define an addiction as a behavior or activity that is psychologically and/or physiologically habit forming that a person chronically feels compelled to repeat. 2. Name three examples of common, socially acceptable addictions. Backbone, Coffee, Shopping. 3. Name three examples of common, socially unacceptable addictions. LSI, Cocaine, Heroin 4. What are three common challenges…

Diels Alder Lab Report

Be sure to address any questions posed in the lab procedure as well as any additional questions that your TA wants you to answer. You should also analyze any NORM spectra that you have from the reaction (if applicable). Spectra of starting materials are available on the Vista site. This reaction was carried out using…

Dna Extraction Lab Report

The mount of egg yolk in test tube, the drops of enzymes. Procedure : 1. The egg is cracked open and gently separate the yolk from the white into a small bowl. 2. Then add a spoonful of salt and a few drops of water to the yolk. 3. Use a glass rod and mix…

Irresistible Lab Report Chem

The objective of the Irresistible lab is to determine the capacity of each solution (unbuttered and buffered both) and how much they resist changes to PH. This is accomplished by having ten graduated beakers: two containing pure water, two with . 1 M Sodium Chloride, two with 1 gram of solid sodium acetate dissolved in…

Proof of Alcohol Lab Report

Proof of the Alcohol Solution: (Percent of Alcohol Based on Volume) (2) = Proof of the Alcohol Solution = (17. 6 96) (2) = 35. 2 Conclusion The experiment was very successful. The experiment went exactly as planned in all three parts. In part I and II of the lab, density of ethanol and water…

Egg Lab Report

The purpose of this experiment is to show the effects of osmosis on the De-shelled egg. I hypothesize that the egg will increase in size in the vinegar and shrink in the syrup, staying relatively the same size in the water. Methods: Fresh boiled and shelled eggs is used in this experiment. The eggs were…

Design of Electronic Circuits Lab Report

The ability to analysis a circuit gives a potential electrical engineer the ability to learn how o problem solve in a theoretical and practical sense which in turn develops industry skills in which will follow them for life, and allow a solid knowledge base for the rest of their career. This report covers the analysis…

Antibiotic Lab Report

Control: Quadrant 4 with no antibiotic Constants: Temperature, bacteria, Petri dish, agar, nutrient broth, time Manipulating Variable: Antibiotics (Penicillin, Neomycin, Erythrocytes) Responding Variable: Zone of inhibition Materials: * Petri dish * Nutrient broth * Cotton swab * 37 degree Celsius incubator * Forceps * Ruler * Permanent marker k tape Procedure: 1. Gather supplies 2….

Volumetric Analysis Chemistry Lab Report

It must be understood that the number of moles of the reacting Noah and the number of moles of the product Nag acid, must both equal (in this case 1 11) in order for the calculation to find the molar mass to work. Procedure: Begin the procedure by first making sure all glassware has been…

Neurophysiology Lab Report

Continue to increase voltage by 0. V and click single stimulus until you find Max voltage. Maximal Voltage = 10. V Record data Activity 2 Mechanical Stimulation 1. Clear the oscilloscope. 2. Drag the glass rod over the nerve, and release it to indicate the rod is touching the nerve. What do you see on…

Steam Distillation

Water was largely used as a solvent. A polar solvent used was Decontaminated. The drying agent used was Calcium Chloride. An acid and a base used were hydrochloric acid and Sodium Hydroxide, respectfully. The equipment used were a thermometer & holder, separators funnel, classes adapter, 3-way adapter (distillation adapter), triple neck round bottom flask, west…

Dichotmous Lab Report

Qualitative descriptions refer to physical attributes such as scent or color, and quantitative descriptions refer to numerical values such as the amount of pedals on a flower. When constructing a dichotomous key, it is important that the questions are very clear and specific so that any two people that use the key will finish the…

Food Tests Lab Report

Take another test tube with glucose solution to act as a control so as to compare the difference in color after the completion of the experiment. 2) Label each of the test tubes with a marker for the substance. 3) Add 10 drops of Benedicts solution to each test tube. 4) Carefully heat the test…

Miracle Gro Lab Report

Two days after “planting,” my group measured the seed with the greatest rate of growth: 0% exhibited 2. 5 CM of growth, 1. 25% had 0. 9 CM, 2. 5% showed 1. 2 CM, 3. 75% displayed 0. 8 CM, and 5% had 0. CM of growth. As evidenced by the data collected, the height…

Determining the Stoichiometry of Chemical Reactions

Mole ratios are used as conversion factors between products and reactants in many chemistry problems. The optimum ratio, which is the psychometric ratio in the equation, arm the greatest amount of product, and, if the reaction is exothermic, generate the most heat and maximum temperature change, Double replacement reactions are generally considered to be irreversible….

Sordaria Lab Report

The SF receives multiple times the IV radiation from the sun that the NAPS receives, has fluctuating weather, and is generally an arid and sees hospitable region compared to the temperate, stable environment of the NFG. Scientists collected wild type Sardinia familial inhabiting both slopes and discovered that the strains from the SF exhibited higher…

Sordaria Finicola Lab Report

The organism Sardinia Familial is a good example of this process because it is easy to grow on agar plates and because they are easy to be seen when looked at through a microscope (Davidson). There are three strands of Sardinia Familial used in this experiment; all were retrieved from an area known as the…

Projectile Motion Lab Report

The two pictures below demonstrate the calculations from Trial 1 at 00 and Trial 1 at 450. In this experiment we did five separate shots from the cannon at 00, and 3 separate shots at 450. We determined the average distance of the shots from each angle by using a meter stick. We were then…

Tlc Lab Report

Food color additives are dyes, pigments or substances that impart color when applied to a food, drug, cosmetic, or the human body. The Food and Drug Administration (FDA) is responsible for regulating all color additives used in the United States. All color additives permitted for use in foods are classified as “exempt from certification” or…

Asexual Propagation Lab Report

In this process, adventitious roots are seen in the growing cycle. Adventitious roots are those that grow form parts of the plant that they normally would not grow from. The cuttings must do this in order to form a completely new plant. There are multiple methods of asexual propagation; some include cuttings, layering, division, and…

Electrical Engineering Lab Report

Resistors & Ohm’s Law Abstract: In this lab, students were introduced to the field of electrical engineering. The objectives of the lab were to determine the resistance of a resistor using various methods and to also verify Ohm’s Law. In the lab, the students were instructed to calculate the resistance by using color codes, measuring…

Osmosis Lab Report

The result was that the more sucrose in the bag, the greater the final mass. Introduction: The reasons for doing this lab are so that we can learn about osmosis with a model similar to a cell and so that we can have a better understanding of the process and nature of osmosis. Osmosis is…

Ap Physics Lab Report- Pendulum

A simple pendulum consists of a mass m swinging back and forth along a circular arc at the end of a string of negligible mass. A pendulum is a weight suspended from a pivot so that it can swing freely. Gravity is the pull that two bodies of mass exert on one another. There are…

Lab Report- Iworx Hm Agonist/Antagonist Muscles

As the lab began, students were to divide into groups and choose a person who would have their muscle activity recorded as the lab went on. Group participants attached electrodes to the group’s chosen test subject, then recording leads, connected to the rigor box, were attached to the electrodes. After being hooked up to the…

Biology Osmosis Lab Report

The results illustrated that increased incineration gradient increases the rate of diffusion of water in the tubes. We concluded that as concentration of the solution increases, the diffusion rate of water out of the tubes increases proportionally. Introduction The cell membrane serves many purposes, such as regulating the transport of material into and out of…

Lab Report on Reaction Time

They also tested the subjects after they had translated the old time texts into a more modern and straightforward language. The tests showed that the more challenging prose ignited ore electrical activity in the brain as compared to the normal, modernized version. The research also showed that reading poetry increased activity in an area of…

Lab Report Zea Mays

Lethal alleles are those that fail to successfully code for the proper production of a functional protein that is vital for life. Recessive lethal alleles are mutations that are only lethal to homozygous individuals with two copies of the mutated allele (Castle, 1910) . In humans cystic fibrosis and sickle cell anemia are two examples…

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