6.1.1 Explain why digestion of large food molecules is essential. There are two reasons why the digestion of large food molecules is vital. Firstly‚ the food we eat is made up of many compounds made by other organisms which are not all suitable for human tissues and therefore these have to be broken down and reassembled so that our bodies can use them. Secondly‚ the food molecules have to be small enough to be absorbed by the villi in the intestine through diffusion‚ facilitated diffusion or active
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and Physical Processes of Digestion Introduction: In this lab‚ we will see how different chemical processes occur as we observe how different enzymes digest different substrates and produce subunits. Key Terms: (found in bold in Lab Manual) Please define all bold terms in your own words: Enzymes- Large protein molecules made by your body cells. Catalyst- Without becoming part of the substance it will change the rate of the chemical reaction. Hydrolyses- A enzyme that catalyzed a chemical
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Comparison chart DNA RNA Stands for: DeoxyriboNucleicAcid RiboNucleicAcid Definition: A nucleic acid that contains the genetic instructions used in the development and functioning of all modern living organisms (scientists believe that RNA may have been the main genetic material in primitive life forms). A single-stranded chain of alternating phosphate and ribose units with the bases Adenine‚ Guanine‚ Cytosine‚ and Uracil bonded to the ribose. RNA molecules are involved in protein synthesis
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for DNA manipulation Gene technology is the artificial manipulation of genes Gene technology’s use different techniques: TOOLS: Restriction enzyme Enzyme that are used to cut DNA at specific sequences ‘Like a pair of scissors’ One of the most important tools in genetic engineering They have the ability to cut DNA molecules at precise sequences of 4 to 8 base pairs called recognition sites A lot of bacteria are used to get restriction enzymes Bacteria use restriction enzymes as a
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DNA Lab Report SungYong Jang What is DNA? What do the letters stand for? What is it composed of? Where is it found? What is it shaped like? Answer in full sentences. It is the genetic material that can be passed on from parent to offspring DNA --> Deoxyribonucleic acid It composed of Deoxyribose (5 carbon sugar)‚ a phosphate and a Nitrogonous base (the 4 N-bases are Guanine‚ Cytosine‚ Adenine and Thymine) It is a double helix (looks like
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DNA FINGERPRINTING LAB REPORT DNA contains genetic material and information that makes up each individual trait. Every person can be identified by providing his or her genetic information based on a particular DNA strand. DNA information is an effective way of identifying persons if it is used properly. It is used to identify humans in different situations such as crime scenes‚ accident scenes‚ paternity testing‚ soldier remain identification‚ inheritance claims‚ missing person investigations‚
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experiment diluted solutions of amylase were created and then tested using a starch solution‚ I2KI for reaction times. The answer to the question was proved to be that more concentration of amylase speeds up the reaction time. Introduction The enzyme‚ amylase is found in the saliva of most animals and in humans. Amylase hydrolyzes starch‚ a plant’s reservation of carbohydrates. Amylase causes a chemical reaction in the polysaccharide starch that breaks down the glucose molecules into maltose
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Abraham Lincoln once stated that "It has long been recognized that the problems with alcohol relate not to the use of a bad thing ‚ but to the abuse of a good thing.” Alcohol is exactly that which can be good for one but the poison for another ‚ particularly ‚ good for adults but bad for adolescent . Our position is that this protective and sensible law should remain until we as Americans can come up with the best way to handle underage drinking. This position is based upon sound science that demonstrates
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Since the 1780s‚ Americans and other countries have always wanted two things: power and money. Trade and military affiliations were the most common way to get both of those things. There could have been many ways to get those two important things. America didn’t have to go across the seas to make a lot of their money. There is quite a bit of foreign U.S military operations going on. Along with a hundred to nine hundred ninety nine million dollars with trade. Staying within the country does make money
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procedure for extracting DNA‚ collecting DNA samples‚ and to observe the physical characteristics of DNA Background: The wild strawberry is a diploid because it only has two sets of chromosomes. While the grocery store kind is an octoploidy because it has eight sets of chromosomes. The reason we chose the grocery store strawberry is because we’d be able to extract more DNA. Ripe strawberries make enzymes which help break down the cell walls making it easier to extract the DNA. We will be using a solution
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