with various sucrose concentrations and were placed into beakers of different sucrose solutions. Overall the results showed that the higher percentage of concentration gradient of sucrose‚ the more the artificial cells absorbed. Introduction: The phenomenon being investigated in the lab was how the concentration gradient affects the rate of osmosis in a cell. Osmosis is the passive movement of water from and area of high concentration‚ temperature‚ and pressure. The concentration gradient is the difference
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Investigation to see How the Concentration of Hydrochloric acid affects the Rate of Reaction with Calcium Carbonate Rate This Paper: 1 2 3 4 5 Length: 3036 words (8.7 double-spaced pages) Rating: Red (FREE) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - An Investigation to see How the Concentration of Hydrochloric acid affects the Rate of Reaction with Calcium Carbonate I am going to investigate how concentration of hydrochloric acid affects
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The Effect of Concentration Gradient on Osmosis Abstract: Osmosis is the passive movement of water from an area of higher concentration to an area of lower concentration‚ usually across a membrane (Thorpe 2013). Tonicity is the ability of a solution surrounding a cell to gain or lose water (Reece 2011). There are many factors that affect the rate of osmosis. These include temperature‚ surface area‚ difference in water potential‚ pressure‚ light and dark and most importantly what we will be talking
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According to the results‚ the experimental group had a huge impact when the diluted concentration of caffeine was put in compared to the control group that contained no concentration of caffeine. The hypothesis was supported because a significant decrease of the total number of cells when caffeine solution was added to the experimental group was clearly shown. An addition of small amounts of caffeine does inhibit cell proliferation and affect cell viability during the lab experimentation one more
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membranes with little difficulty. This process is known as osmosis. The direction of motion is regulated by the relative concentrations of water and dissolved substances inside and outside the cell. Water will move from an area of high concentration of water molecules (low concentration of dissolved particles) to an area of low concentration of water molecules (high concentration of dissolved particles). It is difficult to observe osmosis at the cellular level since cells are very tiny and can only
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| Determination of the Critical Micelle Concentration | | | | Introduction: Purpose: The purpose of this experiment is to use the Conductometric method to determine the critical micelle concentration of SDS. Materials and Equipment: * SDS- Sigma Aldrich‚ Lot: 38H0080‚ S/N: L-439‚ * NaCl- Food grade Great Value * SDS 20% solution- Fisher Biotech‚ S/N: BP1311-200‚ Lot: 468059 * Wave generator- Pasco Scientific‚ S/N PI-9587C * Ammeter- Keithley Auto-ranging
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Protein in the Digestive System Taylor Adams Biol 112- 501 18 April 2016 Introduction Proteins are found in nearly all foods that we eat. Once the food we eat makes its way to our stomachs‚ pepsinogen is released from chief cells. This enzyme mixes with hydrochloric acid in the stomach and begins to break down the proteins. Along with the stomach‚ the small intestine is also an important location for protein breakdown. The proteins from both locations are broken down into amino
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Cockroaches and Hemolymph Concentration in the Body Abstract This lab was conducted to determine the concentration of hemolymph in the body of a cockroach. It was done by making serial dilutions to make a standard graph by injecting a dye into a cockroach and determining the concentration at different times with the use of a spectrophotometer to find the optical density which is measured in absorbance. Results showed that the concentration was not within the pre-experiment research range
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worst places to be in were prisons called Concentration Camps. These prisons were very brutal‚ well organized‚ and there were different types of camps. First‚ these Concentration Camps were very brutal. Some examples of brutality are “when a person is captured they were beaten‚ tortured‚ starved‚ murdered by being worked to death‚ and by being put in gas chambers or large furnaces. A result of these actions 100 people died daily at the camps” (The Concentration Camps). The point of these “camps” was
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Objective To determine soluble solid concentration in some fruits including tropical and temperate fruits by using handheld refractometer. Introduction “Sugar are the major soluble in fruits juices and estimate of sweetness. Other soluble materials include organic and amino acids‚ soluble pectins‚ and others. Soluble solid concentration can be determined in a small sample of fruits juice using a hand held refractometer. The measurement must be made at 20°C to get an accurate value. This instrument
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