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Lab Reports Essay Examples

Ffractional distillation lab report

The purpose of this experiment is to observe what happens when two liquids with a boiling point of 79 and 100 degrees centigrade are heated together and allowed to boil over a specific period, to use the density to determine regenerate composition of ethanol and water and also to understand the process to separating a…

Franco lab report enzyme

Enzyme Activity Name: Daniel Franco Instructor: Professor Jennifer Freer Date: 0308. 2015 Predictions Sucrose will have the greatest activity at 60 ?co (140 Sucrose activity decreases with increasing sucrose concentration Materials and Methods Effect of pH on Enzyme Activity Dependent Variable amount of product (glucose and fructose) produced Independent Variable pH Controlled Variables temperature. Amount…

Enzyme Lab Report

Greater manipulation of substrate when introduced into stronger, less diluted enzyme, higher buffer pH, and/or higher temperature is expected. We know that color change is an effective method of measuring chemical activity within a given reaction. The stronger, more drastic the color change, the more chemical activity present. For this experiment we are concerned with…

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Enzyme Lab Report

Four AP Biology lasses performed this experiment and the data presented in this report will reflect the averages of said classes. In the later discussion sections, it will become very obvious that human error was the deciding factor in the data collection. Introduction Enzymes are biological catalysts that carry out thousands of chemical reactions that…

Organic Compounds Lab Report

The purpose of this lab is to simply determine the absence or presence of the main chemical content of a given substance. In previous labs, there were tests with three chemicals, Logo’s solution, Benedicts solution, and Beirut solution. The tests were qualitative and tested for the presence of sugars, starches, or proteins within a given…

Catalase Lab Report

As the catalane and the substrate interact, the substrate is brought into the catalane and broken apart into water and oxygen. This process may be able to happen naturally, but the enzyme, catalane, speeds up the process. It does so by bringing a molecule into it’s active site and shifting it’s own shape to put…

A Better Understanding of Cephalopods

Asphodels are often regarded as he most intelligent of invertebrates as they posses large brains complemented by well-developed senses. The class developed during the late Cambrian, and early asphodels were likely predators near the top of the food chain. Their lengthy evolutionary history spans an impressive 500 million years and has left a vast record…

Chromatography Lab Report

Why do food dyes separate into different colors as they move up the piece of chromatography paper? Food dyes separate into different colors as they move up the piece of hermaphrodite paper because, when the solution gets absorbed into the paper, it dissolves the color in the ink spot that you have made. Each color…

An Experiment of Adaptation Lab Report

This experiment is going to test the hypothesis that here will be more number of flies with normal wings at the food site than the number of vestigial wings. Materials’ List: – A vial of flies with vestigial wings. – A vial of flies with normal wings. A plastic box with holes on two sides…

White Rat Disection Lab Report

To pin the animal, we used etcher’s twine and secured the front and hinds legs using a “lasso” technique, careful not touch the sharp claws. To make the first incision had to locate the Oxford Process of the rat (distal aspect of the sternum). Once I had located the Oxford Process, I had to use…

Lab Report

Daphnia, or Daphnia magna, are microscopic organisms in which the students created an original lab to test the reactions. These organisms come from the group daphnia, which is also a part of the Clearer, a group related to freshwater shrimp. Daphnia acquired is common name due to the erratic movements. Daphnia are small crustaceans that…

Lab Report

It is standard piece of equipment used in many types of scientific laboratories. It moves a beam of electrons across a fluorescent screen that gives off light where the electrons hit it. It can be used as a graph to draw vertical and horizontal displacement from the origin along the y and x axis respectively….

Lab Report

Pure bending refers to flexure of a beam under a constant bending moment. Therefore, pure bending occurs only in regions of a beam where the shear force is zero ( because V = dim/DXL ). In contrast, uniform bending refers to flexure in the presence of shear forces, which means that the bending moment changes…

Lab Report: Friction

The use of oil in a cart engine, the use of right lubrication in skating as well as in basketball, the screeching sound of a sudden stopping car are all occurrences which is exploited by friction in the reality. Meanwhile, frictional force is component acting on them. It acts parallel to the interface or the…

Lab Report over Population Pyramids of Afghanistan

As the oral’s population grows, improving living standards without destroying the environment is a global challenge. Crude birth rate is the nativity or childbirths per 1,000 people per year. Total fertility rate, which is the average number of children born to each woman over the course of her life. The crude death rate, is the…

A&P- Lab Report – Fetal Pig

The purpose of dissecting the fetal pig is to experience way the body looks internally. The fetal pig body organs are similar to the organs in a human body as well as the functions. My first step was to start cutting from the neck/cervical down to the midsection of the body. Then I cut the…

Beet Cells Lab Report

A spectrophotometer will be used to measure this variable by measuring the absorbency value of the beautician in solution after each treatment. The results of this study will show the necessary temperature to keep the vacuole intact. It would influence common agriculture practices by indicating a more ideal environment setting and techniques. At the same…

Lab Report.

Animal Behavior in Sopped based on Climate, Light, and Surface Abstract Pill bugs, (also named sow or potato bugs) are terrestrial crustaceans that consume decomposed leaves or other plants. In the lab performed on September 24, 201 0, animal behavior of the sopped was recorded, specifically in the climate that they preferred. Various climates situations…

Enzyme Lab Report Introduction

Enzymes are proteins that increase or decrease the rate of chemical reactions. They are generally globular proteins and are around 62 amino acids residues in size. What enzymes do is determined by their 2-dimensional shape. A lot of enzymes are bigger than the substrate they act on, but only a little part of the enzyme…

Memory Span and Word Complexity

Data was collected from 20 students, The hypothesis of he experiment was rejected by on the basis of the T -test, because it showed no significance in the results hence this suggested that there was no relationship between memory recall and word complexity as t (13) = 0. 588, p > 0. 05. However, the…

Transpiration Lab Report

Plants transpire the least when it is dark and there is lots of humidity. Photosynthesis does not occur without light and the humidity prevents water from diffusing out the leaf. RESULTS: [pick] DISCUSSION: Our class data showed that the transpiration pull was the second highest in humidity and in the dark. This data is incorrect,…

Lab Report on Osmosis

The other is called passive process, which does not require TAP energy and the transport process is driven by concentration or erasure differences between the interior and exterior of the cell. All molecules are in constant motion, ergo, possessing kinetic energy. This kinetic energy is the motivating force in diffusion. During diffusion, molecules that are…

Drosophila Melanogaster Lab Report

Over the next four days, the body is completely remodeled to give the adult winged form, which then hatches from the papal case and is fertile within about 12 hours. Fruit fly has four pairs of chromosomes: the WY sex chromosomes and the outcomes 2, 3, and 4. The fourth chromosome is very tiny and…

Dehydrating Cyclohexanol Lab Report

Discussion: In order to perform this experiment, a distillation apparatus was assembled. Ml of HAPPY and 3. Ml of cyclopean was placed in the round-bottom flask as sell as 5 drops of HOSES and a magnetic stir bar. The flow of water was then started through the condenser and the reaction mixture was heated while…

Bio Lab Report

I will alter various factors that can affect the rate of cellular respiration. Comparison of different samples will allow you to determine what notations are best for the yeast. I will vary the substrate provided to the yeast for use as fuel, I will vary pH, and will also investigate the effects of two inhibitors,…

Entomology Lab Report

In this experiment, the effectiveness of biological control is tested using lady beetles and aphids. Lady beetles are predacious coelenterate that feed primarily on aphids (order hemisphere). Aphids feed on a plethora of plants including peach, plum, and apricot. Aphids are also vectors of plant disease. Eight replicates were conducted. In each replicate a lady…

Iron Lab Report

An indicator is used just as in an acid-base titration, although in this experiment because of its self-indicating property Km the iterant, it is also used as indicate when the equivalence point is reached as it is titrated with Fee+ Iron is the most abundant metal in the Earth’s crust after Aluminum. It is found…

Biology Ap Lab Report

Color reaction of starch when mixed with Iodine solution Introduction: Statement: * How would the varying solutions react when introduced with the Iodine solution? Hypothesis: * If a solution is rich in starch then it will react with iodine solution and change to a bluish-black color (looks Brown) Materials: Items: * 8 test tubes, pipette,…

Ap Biology Starter Lab Report

Much like the trees use properties of water for capillary action which moves water up from the roots to the leaves, the paper towels also use water’s cohesive(attraction of a water molecule to another water molecule) and adhesive(attraction of a water molecule to another hydrophilic molecule) behaviors to soak up water. The water bonds with…

Chemistry Lab Report Conductimetric

The aim of this experiment it to analyze the solution of Baa(OH)2 of an unknown concentration. In order to obtain the quantitative analysis, the exact amount of a particular compound or element present in sample, two procedures were performed. The first procedure was by conductivities titration and by gravimetric determination. The conductivity was analyzed during…

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