Discuss why hydrogen bonding is essential for life Throughout biochemistry there are many bonds without which life as it is on earth today would not be possible. One of the most important bonds of these is the hydrogen bond‚ a weak chemical bond that is present in essential biological molecules such as water and polypeptides. A hydrogen bond is defined by Campbell and Reece as occurring when a hydrogen atom is covalently bonded to an electronegative atom but attracted to another electronegative
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Subject: Geography Name: Muhammad Umair e-mail id: hafizumair92@gmail.com Climate of Pakistan: Introduction: Pakistan lies in the temperature zone. The climate is varied throughout the country‚ characterized by hot summer and cold winter. The rainfall occur in the upper parts of the Pakistan is usually from the Western Disturbance. From June to September most of the country is lashed by the South West Monsoon. Pakistan has recorded one of the highest temperatures in the world Mohenjo-daroo
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Environmental Engineering Course Description: Ecological framework of sustainable development; pollution environments: water‚ air‚ and solid; waste treatment processes‚ disposal‚ and management; government legislation‚ rules and regulation related to the environment and waste management; and environmental management s...ystem. Pre requisite: General Chemistry Course outline: 1 Ecological Concepts 1.1 Introduction to Environmental Engineering 1.2 Ecology of life 1.3 Biogeochemichal
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The Biological Structure of Water Water is a substance with the chemical formula H2O: one molecule of water has two hydrogen atoms covalently bonded to a single oxygen atom. Its structure enables it to carry out many important functions in the body. Water molecules are charged‚ with the oxygen atom being slightly negative and the hydrogen atoms being slightly positive. These opposite charges attract each other‚ forming hydrogen bonds. These are weak‚ long distance bonds that are very common and
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1. What are Hofstede’s five dimensions of cultural differences that affect work attitudes? Using these dimensions describe the United States. 1.1 Individualism vs. Collectivism‚ the individuals believe they should make their own choices and be responsible for them‚ they are concerned about losing their social frames‚ in contrast the collectivism involves the loyalty and group thinking in order to create hormonal work process. The individualism encourages individual achievements‚ as collectivism
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Fermentation Fermentation is a natural process that has been going on in nature since before humans existed. For centuries we have been practicing food fermentation‚ knowingly or unknowingly. Every food culture in the world throughout history has been using fermentation in their food in some way. Bread making originated in Egypt 3500 years ago. Fermented drinks were being produced and consumed in Babylon(now Iraq) 7000 years ago. China is thought to be the birth place of fermented vegetables. A
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side‚ or until golden brown. Remove from heat when pork chops’ internal temperature reaches 145 degrees F. 6. Place the cooked pork chops on a platter and cover with foil to keep warm. 7. In a the same skillet‚ stir in the bell pepper‚ onion‚ and celery. Saute until tender‚ then pour in the white wine and let simmer until liquids are evaporated. 8. Spread the vegetables on a platter and place the pork chops on top. Serve right away. Green Pork Chili Makes 3 servings You Will Need: • 1 1/2 lb
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Process of Diffusion and its importance in living organisms Diffusion is the movement of molecules or ions down a concentration gradient i.e. from an area of high concentration to an area of low concentration. For a diffusion system to be efficient‚ it should have a large surface area so that high amount of substances can be exchanged at a time. It should also have a thin membrane and a continuous supply of substances‚ as a thin membrane means that the diffusion pathway would be short‚ and the continuous
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continuous exchange of water amongst reservoirs - "Reservoirs" constitute the hydrosphere - Reservoirs: oceans‚ lakes‚ rivers‚ glaciers‚ the atmosphere‚ living tissue - Hydrologic cycle is power by energy from the sun - causes: evaporation‚ transpiration‚ precipitation‚ run-off to the sea - Begins with evaporation of water from earth’s surface (especially oceans) - As moist air is lifted‚ it cools and the water
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makes it sting more. Huny bees are important to the environment. They polinate the wild flowers and plants. They are the world’s most importent polanator of food crops ‚ too. They help polinate foods such as bluebarries‚ soybeans‚ asparagus‚ broccoli‚ celery‚ squash‚ cucumbers‚ peaches‚ cherries‚ cranberries‚ and melons. Manmade hives are ofen moved tob new plases to polanate differnt plants‚ flowers‚ and foods.
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