Study guide Exam 1 Ch 1-5 CH 1 Overview‚ what is evolution‚ what is biology‚ what is life Evolution scientific explanation for: the unity and diversity we see in various organisms the suitability of organisms to their environments is evolution Hierarchy – molecules‚ cells‚ tissue‚ organ‚ organisms‚ populations‚ communities‚ ecosystem‚ biosphere Emergent properties – zooming from molecular level out to see function Reductionism (complex to simple) and Systems Biology (dynamic) Organisms
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All living things require the input of energy to exist – this energy is used to drive the thousands of biochemical reactions that occur to allow the organism to grow‚ reproduce and sustain life. This energy comes almost always from the Sun‚ in the rst instance – energy from sunlight is captured by photosynthetic organisms (e.g. plants‚ algae‚ certain bacteria) and converted into carbohydrates. These are then broken down by a process called cellular respiration‚ to produce energy-rich molecules (e
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D‚ Tang.L‚ Robert G. Landers‚Hilmas‚ G.‚ J. L. Watts‚ 2012. “Freeze-form extrusion fabrication of functionally graded materials‚” Manufacturing Technology‚ 61.223–226. [7] Sophie‚ S. W.‚ Dogan‚ F‚ "Freeze Casting of Aqueous Alumina Slurries with Glycerol"‚ Journal of the American Ceramic Society‚ 84/7:1459–1464. [8] Ming C. Leu‚ Tang.L‚ Brad.D‚ Robert G. Landers‚ Hilmas‚ G.‚ Shi Z‚ and Jeremy.W‚ 2011‚ "FREEZE-FORM EXTRUSION FABRICATION OF COMPOSITE STRUCTURES"‚ Manufacturing Technology. [9] Ang L
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The most common organic molecules are carbohydrates‚ lipids‚ and proteins. Carbohydrates contain carbon‚ hydrogen and oxygen with a ratio of 1:2:1‚ this means that for every 2 hydrogen atoms there is one carbon atom and one oxygen atom. They are necessary for the body to function properly because they provide the fuel that burns to produce energy. Carbohydrates come in the class of either a monosaccharide‚ disaccharide‚ or polysaccharide. Monosaccharides are the simplest form of a carbohydrate‚ disaccharides
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Introduction India’s energy sector is currently confronted with multiple challenges‚ which stem not only from supply-side constraints but also from demand pressures imposed by a buoyant economy and a growing population. As per recent Planning Commission estimates‚ if economic growth is sustained in the 7-8 per cent range‚ the energy demand would rise by at least 5.2 per cent annually. In the face of relatively inflexible supply options‚ the gap between energy requirement and availability
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Bio coursework Methylene blue Yeast cells explanation of respiration hence colour change etc Low temp colour change should be visible as the yeast cells are not necessarily dead‚ just inactive. Activity increases from 20-45 c High rate around 30-40 Starts to slow down basically enzyme curve see bio 1 100 degrees will kill all cells Do a few preliminary keep working down until first blue solution appears in unit of ten Then work to find degree. If more accuracy then half
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Nutrition is the process of consuming‚ absorbing‚ and using nutrients needed by the body for growth‚ development‚ and the maintenance of life; nutrients are chemical substances in foods that nourish the body. Many nutrients can be synthesized in the body’. Those that cannot be synthesized in the body called essential nutrients-must be consumed in the diet. They include amino acids (in proteins)‚ certain fatty acids (in fats and oils)‚ minerals‚ and vitamins. Nine of the 20 amino acids in proteins
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Casandra De Amicis Biology Review #1 1. The basic unit of structure and function for life is atoms 2. The levels of organization for an organism are: atoms‚ molecules‚ cell‚ tissue‚ organ‚ organ system‚ organisms‚ population‚ community‚ ecosystems‚ and biosphere 3. The characteristics of living organisms are; a. Life is organized b. Life uses materials and energy c. Life reproduces d. Life is homeostatic 4. The major driving force behind evolution is; natural selection (brings about adaptation
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food we eat has to be broken down into nutrients that can be absorbed by the body‚ which is why it takes hours to fully digest food. In humans‚ protein must be broken down into amino acids‚ starches into simple sugars‚ and fats into fatty acids and glycerol. The water in our food and drink is also absorbed into the bloodstream to provide the body with the fluid it needs. Insulin : nsulin is a hormone and is found in even
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Crenation/hemolysis/none? hypotonic hypertonic hypotonic hemolysis crenation hemolysis 5. (6) Describe how an artificial kidney separates waste products from blood? 3 6. (3) Construct a triglyceride from 3 units of stearic acid and one unit of glycerol. 7. (3) Predict if the triglyceride is likely to be an oil or fat. Explain. 8. (3)Why is a vegetable oil easier to digest than animal fat? 9. Answer the following questions based on Stearic acid: a. (1) Identify the type of reaction in step
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