Firstly‚ the AQA Science Biology textbook published in 2011 by Nelson Thornes Ltd suggests on page 172 that “in the past‚ people boiled and scrubbed their clothes to get them clean – by hand! Now we have washing machines and enzymes ready and waiting to digest the stains.” This is telling us how people now use enzymes at home and it is much easier from the past. This is an example of how enzymes are used in homes. Enzymes are used to get rid of the stains that are on the clothes in washing machines.
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It carries the mother’s antibodies helping the baby’s immunity from disease and infection. The milk will be tailor made for the babies particular nutritional needs and will change according to the baby’s changing needs. It is easier for a baby to digest than any other type of milk. It will be sterile and at the right temperature. At about six months old‚ when a baby can sit up and hold its head steady‚ solid food can be slowly introduced in stages in addition to the baby’s milk. The first stage
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the timing of their stings. Pacific sea nettles have nematocysts in their tentacles that inject poison into the prey. The poison paralyses the prey‚ enabling the jellyfish to begin to digest its prey with its oral arms. The oral arms move the prey to the gastric cavity for further digestion. The jellyfish begin to digest their food before it even reaches their mouth. After it has been digested‚ the tentacles extend again to capture more prey. Despite its stingers‚ the Pacific sea nettle is a main food
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the good carbs. This is because when digesting simple carbs such as sweet sugary foods‚ insulin levels rise faster and spike and the carbs are used up faster for energy. On the other hand complex carbs found in whole grain products take longer to digest. The result of this is longer lasting energy and feeling fuller for longer. More importantly there is less of an insulin reaction in the body. However‚ more recent research has shown that the glycemic peak of ingested carbohydrates is reached within
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Restriction Fragment Length Polymorphism and Southern Blotting 1. Abstract The aim of the experiment was to be introduced to the techniques involved in the identification of restriction fragment length polymorphisms. Restrictions were carried out using three different restriction enzymes‚ ECORI‚ HindIII and BstELI with their buffers. Lambda (λ) DNA was then examined using electrophoresis and Southern blotting. The results showed that λ DNA was best digested by EcoRI as all of the expected bands
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water Which tubes indicate that the deionized water did not contain contaminating starch or maltose? a. 3‚ 4 and 5 - all showed water If we left out control tubes‚ 3‚ 4 and 5‚ what objections could be raised to the statement: "Amylase digests starch to maltose"? (Hint: Think about the purity of the chemical solutions.) a. if control tubes 3‚ 4‚ and 5 were not done‚ then what is perceived as digestion might really be starch or maltose contamination. Would the amylase present in
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Plant Cell Plant cells have many different parts that are need to work together and function as a whole. These parts are the cell membrane which can be compared to a "Condom" due to the fact that is a very thin protective layer that lets certain substances to pass through. Cell wall is a thicker rougher membrane‚ which gives the plant most of its structure and support‚ the cell wall also bond with other cell walls to form the structure of the plant. Centrosome may be also referred to as the
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Cool summer foods to beat the heat. Maintaining a healthy diet in summer is a concern for most individuals in the modern world. The sun is shining and the mercury levels are soaring‚ you know the summer is here and there is no escape from it. It is a season where energy levels and appetite are low and a slightest activity causes the sweat to flow off your back and face. Life goes on and it is very necessary to cope with the heat to avoid the usual problems of dehydration‚ heatstroke and a feeling
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Acne Acne is defined as an inflammatory disease of the sebaceous glands and hair follicles of the skin which is apparent by small or big pimples or pustules on the face or body. Acne is a problem that can affect almost everyone’s life. There are a few different types of acne. Whiteheads and Blackheads The first types of acne are whiteheads and blackheads. Whiteheads are caused when pores are blocked with sebum‚ an oily secretion that our bodies produce naturally. Blackheads are similar to whiteheads
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osteocytes‚ thus creating spongy bone forms. Then Osteoblasts build compact bone around the already formed spongy bone by secreting their matrix. In conclusion‚ the osteoclasts digest old bone and the osteoblasts lay down new bone. (describe steps in building bone and talk about spongy bone and compact bone) Resorption- osteoclasts digest old bone Reversal- when mononuclear cells appear on the bone surface Formation- when osteoblasts lay down new bone until the resorbed bone is completely replaced.
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