Jaycar Electronics Reference Data Sheet: BATTPRIM.PDF (1) PRIMARY CELLS & BATTERIES Many portable electrical and electronic devices are designed to be powered from batteries and in a lot of cases‚ from primary or non-rechargeable batteries. This is the familiar kind of battery which has a fixed amount of energy stored in it during manufacture‚ and once that energy has been used up the battery is simply thrown away and replaced. There are many different types of primary battery now available
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Review Sheet Exercise 1 Cell Transport Mechanisms and Permeability Activity 1: Simulating Dialysis (Simple Diffusion) • Describe two variables that affect the rate of diffusion: Two variables that affect the rate of diffusion are size and concentration gradient. The molecular size vs the MWCO size of the membrane can either increase‚ decrease‚ or prevent diffusion. The greater the concentration gradient the greater the diffusion rate due to molecules moving from areas of higher concentration
Free Diffusion Molecular diffusion Osmosis
understanding about what alcohol is‚ how alcohol is produced‚ the metabolic processes involved with the breakdown of alcohol in the body and the enzymes that catalyze these reactions and how these biochemical reactions affect the liver and brain and the effects of alcohol on the human body. Introduction A good deal of the population consume alcohol‚ some more than others. The effects of alcohol consumption on the human body affects mainly the central nervous system‚ however alcohol is mainly metabolized
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treatment of many diseases. Stem cell research has provided hope and has brought optimism among the scientists and doctors in curing the patients who suffered or died due to the once called "untreatable" diseases decades ago. Stem cells are the ones which can develop into any type of a body cell including the cells of blood‚ liver‚ brain‚ muscles‚ and many more. They are found in adult bone marrow‚ embryos‚ fetuses‚ and blood from the umbilical cord (Bailey 100). Stem cell research is the latest advancement
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Alcohol consumption should be banned A dizzying array of research suggests alcohol can have both good and bad effects‚ but making sense of such studies all comes down to preaching about the evil effects of alcohol and the substantial impact on our health. Alcohol is more than just an ordinary beverage. Alcohol’s consequences weigh more than any of its positives. This debate points out few of the reasons as to why alcohol should be banned. Firstly‚ alcohol should be illegal because it is just
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already done by their friends and establish their own identities. Seventy percent of high school students have had at least one alcoholic beverage‚ and they are often with their friends when they drink. Teenagers and young adults get involved with alcohol and drugs for many reasons. Some examples include: • Curiosity: They want to know what it feels like to get high or be drunk. • Peer pressure: Their friends are doing it. • Acceptance: Their parents or role models are doing it.
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cCELL PHONES A cell phone is the biggest invention of this century. It changed our lives dramatically and nothing is the same anymore. Especially combining computer and phone made such a different world for everyone. The reason for the invention was to help us communicating easily‚ but in my opinion it also causes us to cut off communication between people. First of all‚ we became virtual humans because we are constantly texting and using social media on our phones‚ we also start having virtual
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Cell injury In this topic we are going to cover Cell injury Causes of cell injury Mechanism of cell injury Morphologic alterations in cell injury Morphologic types of necrosis Objectives Describe cell injury List the causes of cell injury Discuss how depletion of ATP causes cell injury Describe how mitochondrial damage cause cell injury Explain the mechanism of cell injury by free radicals Discuss how calcium ion influx cause cell injury Cell injury cell injury results when cells
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Cell Fusion Introduction: The fusion of cells is a fundamental biological event that is essential for a variety of developmental and homeostatic processes. The importance of cell-cell fusion during development and disease is displayed in a variety of biological processes including‚ but not limited to‚ fertilization‚ development of tissues‚ the immune response‚ and aspects of tissue regeneration due to stem cells (Chen and Olson‚ 2005). Fertilization‚ which is the fusion of sperm and egg‚
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Alcohol advertising in Australia ignores the long-term and short-term health risks associated with excessive alcohol consumption; these are detrimental to the Australian population of all ages‚ therefore they should be banned. Alcohol advertising is the promotion of alcoholic beverages by alcohol companies through a range of different media. Alcohol advertising is one of the most closely regulated forms of advertising‚ along with tobacco. The self-regulation system in Australia is not effective at
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