FlowCAM® Application Note #105 Yeast Viability Measurements in Fermentation Studies Objective An important component of fermentation processes is to continually monitor yeast growth and viability. The most common method for doing this is using the ASBC hemocytometer count method. In this method‚ samples are taken from the fermentation vessel‚ stained with methylene blue‚ and then counted manually under a microscope using a hemocytometer. While this method is well known and documented
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The Correlation between the Diffusion Rate of a Substance and its Molecular Weight ABSTRACT To test the effect of molecular weight on the rate of diffusion‚ various experiments were performed. One of which is the glass tube test wherein cotton balls of the same size were moistened in two different substances (NH4OH and HCl). These cotton balls were plugged at each side of a glass tube. After some time‚ formation of a white ring occurred. The white ring‚ in fact‚ is a product of the reaction between
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Introduction This project is about analysing the factors affecting the demand of mobile telephone products. The case study that will be included is the current state of the UK mobile telecommunications market. The operators to be examined are the four major operators in the UK: BTCellnet‚ One2one‚ Orange and Vodafone. The case study for this project will be based on the current state of the UK mobile telecommunications market and the performance of its four consumer operators. Before this can
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Coursework Rates of Reaction Research The rate of reaction tells us how quickly a chemical reaction takes place. It is important for people in industry to know how fast a reaction goes. They have to know exactly how much of their product they can make each hour‚ day or week. In a shampoo factory‚ the rate might be 100 bottles per minute. We can’t work out the rate of a reaction from its chemical equation. Equations can only tells us how much product we can get. They don’t say how quickly
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ANATOMY AND PHYSIOLOGY AN INTRODUCTION TO RESPIRATION In this essay we will consider a few major aspects of respiration. We shall first consider the interesting history of the study of respiration before moving on to our modern understanding of respiration. We will look at the structure and function of the respiratory system including the upper and lower respiratory tracts with a note on the control system. Secondly we will consider the physiology of respiration. Thirdly we will discuss some of the major
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others in society‚ but from their distinctive physical or mental defects. The positivists understood themselves as scientists and were concerned with scientifically identifying the causes of criminal behavior in individual offenders. Biological Factors in Crime Not many want to believe there is any such thing as a "bad seed;" that heredity can make criminal behavior unavoidable and inevitable for some individuals. Of course‚ bio-psychologists do not believe that genetic or physiological components
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The drug “dinitrophenol” (DNP) was prescribed by some physicians in the 1940’s to help patients lose weight. This unsafe method was abandoned after a few patients died. DNP uncouples the chemiosmotic machinery by making the lipid bilayer of the inner mitochondrial membrane leaky to H+. Explain how this could cause weight loss. In chemiosmosis‚ NADH are passed along the electron transport chain‚ with energy used to pump protons across the inner mitochondrial membrane. As the protons are transferred
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world’s five largest producers of over 80% of agricultural produce items‚ including many cash crops such as coffeeand cotton‚ in 2010. India is also one of the world’s five largest producers of livestock and poultry meat‚ with one of the fastest growth rates‚ as of 2011. India exported about 2 billion kilograms each of wheat and rice in 2011 to Africa‚ Nepal‚ Bangladesh and other regions of the world. Aquaculture and catch fishery is amongst the fastest growing industries in India. Between 1990 and
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pneumothorax. To describe the role of muscles and volume changes in the mechanics of breathing. To understand that the lungs do not contain muscle and that respirations are therefore caused by external forces. To explore the effect of changing airway resistance on breathing. To study the effect of surfactant on lung function. To examine the factors that cause lung collapse. To understand the effects of hyperventilation‚ rebreathing‚ and breath holding on the CO2 level
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In bio lab‚ my lab partners and I did a lab experiment involving yeast fermentation. Fermentation is an anaerobic process to regenerate NAD+ to keep glycolysis active. Yeast preforms ethanol fermentation which create ethanol and NAD+. The class used six different types of sugars to determine which fuels fermentation by measuring the amount the carbon dioxide bubbles produced by the yeast. Yeast are single-cell fungi that cannot make their own food. They take the sugars in the surrounding environment
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