result of drug abuse and dependence on the drug. There are a lot of possible explanations to where addictions come from and their effects on a patient. Addictions were once considered to be a disease but there’s more to it than that. Two explanations in particular that can show how drugs are associated with addictions fairly well are the psychological and the biological models. The model of addiction that is introduced as an explanation to the origins of an addiction is the Psychological model of
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constructed; there are also a lot of biological and genetic factors that contribute. Two biological factors that affect our gender roles are our genes and hormones. When a baby is first conceived it is genderless for the first seven weeks of development and‚ since there is no gender‚ the development for males and females during this period is identical. At seven weeks when the sperm and egg combine to form the zygote‚ the genes activate the babies’ biological sex. Everyone has 23 pairs of chromosomes
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The Nervous System: Membrane Potential 1. Record the intracellular and extracellular concentrations of the following ions (mM/L): Intracellular Extracellular Sodium (Na+) Potassium (K+) Chloride (Cl–) 2. Excitable cells‚ like neurons‚ are more permeable to ___________ than to ___________. 3. How would the following alterations affect the membrane permeability to K+? Use arrows to indicate the change in permeability. a. An increase in the number of passive K+ channels
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anything covered in lecture may appear on the exam. Membrane Transport 1. Describe the cell permeability and membrane transport. What can enter/exit the cell on its own? What requires assistance? Why? 2. Describe membrane potential. What is it? How is it established? How does it influence the transport of charged molecules? What are the components of the electrochemical gradient? 3. What are the different types of membrane transport? Describe each in detail. Which move solutes
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Alcohol Vs. Marijuana Alcohol and marijuana are two drugs commonly used and abused in the United States. Alcohol is the number one abused drug‚ while marijuana is number one among illegal drugs. While alcohol remains legal‚ and marijuana illegal‚ this does not necessarily mean that the alcohol is better for you. There have been many arguments where people suggest that marijuana should be legal because alcohol is more deadly. On the other hand‚ there are alcoholics who would tell a pothead
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Title: Ms. K Cell Membrane and Homeostasis Experiment Objective(s): The reason for this experiment is to see how starch and iodine affect each other and how a plastic bag works similar to a membrane in certain situations. Introduction: I know prior to doing this experiment that iodine mixed with starch creates a dark color and that most objects‚ organic and inorganic‚ naturally experience isotonic reactions. Hypothesis: I think that the potato will absorb more starch than the sweet potato and
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Lab Report 3: Combustion of Magnesium and Specific Heat of a Metal C4C Jeffrey Silvin Fall 2017 Major Kittle Chem 100 T1 Introduction The purpose of this lab was to determine an experimental value for the heat of formation of MgO with Hess’s Law and then use the result to find percent error. To do so‚ approximately 50 mL of 1.0 M HCl was added to a calorimeter. Initial temperature was measured and then 0.25 g of Mg was added. After the reaction is completed the maximum temperature was recorded.
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Unit 10: Biological Molecules and Metabolic Pathways C: Explore the factors that can affect the pathways and the rate of photosynthesis in plants The following report is about the factors which can affect the pathways and the the rate of photosynthesis in plants. This report will cover what photosynthesis is ‚ the factors which may affect photosynthesis in working poorly‚ light independant and dependant reaction. An investigation will be carried out which will include the factors that affect photosynthesis
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Answers TO DETERMINE THE EFFECT OF CHEMICALS AND TEMPERATURE ON MEMBRANE DESTRUCTION AND PERMEABILITY IN BEETROOT (Beta vulgaris) Introduction The cell membrane is made up primarily of phospholipids and proteins which contribute to its selectively permeable nature. The function and permeability of the cell membrane depends on its intact structure. When destroyed‚ the permeability of the cell membrane is disrupted causing cellular contents to leak out. The cell membrane can be destroyed by physical
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Alcohol use disorders are among the most prevalent mental disorders worldwide and rank high as a cause of disability burden in most regions of the world. (Grant et al.‚ 2006)The following paper discusses the recent research findings and essential features based on the content of diagnosis‚ assessment and treatment. Diagnosis The DSM-IV-TR classifies drug disorders into substance use disorders (substance dependence and abuse) and substance-induced disorders (substance intoxication‚ substance withdrawal
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