– Section 3.1.1 Microorganisms as Pathogens To be considered a pathogen it must: Gain entry Colonise the tissues Resist the defences Cause damage to the tissues Pathogens include bacteria‚ viruses and fungi How do microorganisms enter the body Many pathogens enter through the gas exchange system (including ones that cause flu and TB) Food and water can carry pathogens into the stomach and intestines via the mouth and into the digestive system (including ones that
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“How Does the Body Function?” Do you consider your body a delicate temple‚ and do you give any thoughts to the daily functions it provides for you? Well‚ to name a few‚ the eyes‚ ears and skin play a vital role in our lives‚ and without these precious body parts I believe our life of living free would be limited. Someone once said that “the eyes provide a window to the soul‚ they also provide us with a window to the world.” Our vision starts when you look at an object; the light from
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10 2 October 2014 Are cell phone is dangerous There are billions of people all over the world use cell phones. They use them for many different purposes‚ some use them for calling‚ or sending messages‚ others use may use them for logging into the net and chatting with friends. From my point of view‚ cell phones are very dangerous as they waste time and money‚ sometimes they lead to some sort of addiction‚ and they are dangerous to the human body. First of all‚ cell phones waste a lot of time
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Milgram from Yale University conducted an experiment focusing about obedience to authority figure verse personal conscience. However‚ in this research the volunteering subjects thinks it is based on the study of learning and memory. This experiment involves three people‚ the experimenter‚ naïve subject‚ and the victim; the ending result was unpredictable. The experiment had total of forty participant who are men between age twenty to fifty with different backgrounds and occupations. The procedure
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7-1‚ 7-2 Cell Structures and Function cell theory- all living things are composed of cells‚ cells are the basic units of structure and function in living things‚ new cells are produced from existing cells. prokaryote- smaller and simpler than eukaryotes‚ do not contain nuclei‚ are part of the Bacteria domain‚ are unicellular‚ are autotrophs or heterotrophs eukaryote- cells with nuclei and contain specialized structures called organells. All plants‚ animals and fungi are eukaryotes. Part of the
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How Yoga Works When I began seriously letting my practicing of yoga permeate my life I began my journey with teacher training and extensions‚ a part of that “How Yoga Works” was a reading suggestion. This turns out to be the perfect book for me to have started my journey with. What we have in this book is a fictional story about a yoga teacher and her student. Without giving too many details away‚ this story is a vehicle for illustrating the applications of yoga sutras to life and the
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The way that the molecules move across the cell membrane is that the carbon dioxide molecules spread out rapidly out your red blood cells down their concentration gradient to your lungs. When water molecules move freely through your cell membrane is called osmosis as we learned last unit. The reason why molecules move across the cell membrane is because they are small molecules that have no charge like oxygen which the cell membrane need to survive. So basically the molecules that move across the
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Olfaction or olfactory perception[1] is the sense of smell. This sense is mediated by specialized sensory cells of the nasal cavity of vertebrates‚ which can be considered analogous to sensory cells of the antennae of invertebrates. In humans‚ olfaction occurs when odorant molecules bind to specific sites on the olfactory receptors. These receptors are used to detect the presence of smell. They come together at the glomerulus‚ a structure which transmits signals to the olfactory bulb (a brain structure
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“Utilitarianism works” Asses this view Bentham created utilitarianism and Mill improved it. It main points are that human society exists to create happiness‚ that happiness is the highest goal and that everything needs to fit a purpose. The advantages of Bentham’s theory include a reasonable link between moralities‚ the pursuit of happiness and the avoidance of pain. According to Bowie it seems natural to consider the consequences when deciding our actions. He stated that “Utilitarianism offers
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How Guns Work A gun is a weapon that uses the force of an explosive propellant to project a missile. Guns or firearms are classified by the diameter of the barrel opening. This is known as the calibre of the gun. Anything with a calibre up to and including . 60 calibre(0.6 inches) is known as a firearm. The precise origin of the gun is unknown‚ although they were in use by the early 14th century and were common place in Europe by mid-century. These early guns were nothing more than large
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