“The Effect of Level of Activity on Clothespin Squeezing Amount Question: Does exercising/ resting affect the number of times you can squeeze a clothespin in a minute? Hypothesis: If the person DOES NOT exercise before the task then‚ they will be able to squeeze the clothespin more because not exercising/resting allows the body to relax and there are no buildups of waste products. Biological Explanation: Both the respiratory system and the circulatory system are involved within my experiment
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When a beetroot cell is exposed to various kinds of temperatures‚ its plasma membrane is affected and may change in structure resulting in the leaking of betacyanin. If the temperature changes‚ then I would expect to observe that there would be a change in the concentration of betacyanin that has leaked from a beetroot cell. In specific‚ at high temperatures‚ the phospholipids that make up the plasma membrane of the beet root cell become progressively more destabilized causing them to transform into
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atmospheric pressure is suspended from the ceiling of a large room. The steam temperature entering the pipe is 120 oC‚ and the air temperature is 20 oC. The overall heat transfer coefficient on the outer surface of the covered pipe is 10 W/m2.K. if the velocity of the steam is 10 m/s‚ at what point along the pipe will the steam begin condensing and what distance will be required for the steam to reach a mean temperature of 100 oC? Question 2: Consider a horizontal‚ thin walled circular tube
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Appreciate how a physical property that varies with temperature may be used for the measurement of temperature‚ and state examples of such properties. Recognise the need for and identify fixed points. Describe the structure and action of liquid-in-glass thermometers. Demonstrate understanding of sensitivity‚ range and linearity. Describe the structure of a thermocouple and show understanding of its use for measuring high temperatures and those that vary rapidly. 1. A clinical thermometer
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A potato chip is a slice of potato‚ deep fried or baked until crisp. Potato chips serve as a side dish or snack. The chips of this kind are just cooked and saled‚ but chips are an important part of the snack food market in English-speaking countries and many other Western nations. Lays Classic potato chips contain potatoes‚ healthier oil‚ and salt. Consumers buy lays classic potato chips because of the fufilling taste‚ crunchy and salty. Lays’ potato chips have become such a common snack among many
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Memorandum To: Urban Planning Department From: Name Subject: Rise of Temperature in Urcity Date: Introduction Agricultural areas all over the world are feeling the effects of suburb expansion. The cities growth is having an effect on the ability of land‚ water‚ and animals. With city growth will create problems such as climate‚ land‚ and geographical changes (Hillel‚ 1995). Critical Findings The agricultural areas of UrCity are being forced further out into the desert basin due
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gain accurate results. Variables Dependant Variable: Time‚ Size of 5cm piece of Potato Independent Variable: Amount of Oxygen released Control Variable: Volume of Hydrogen peroxide‚ size of Potato‚ concentration of Hydrogen Peroxide Hypothesis I predict that the breakdown of Hydrogen Peroxide will be quicker when the surface area is increased. If you cut the same size piece of potato into smaller pieces‚ I believe‚ the breakdown will be faster. I predict that an increase
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“The Green Stuff‚” “Go-Juice‚” “Green Power‚” “Emerald Energy‚” “Get Up and Go‚” all names for a type of medicine Alex never expected to need. Alex grew up in the streets of a Midworld called Scyphus Major. It was a perilous place to live‚ and it taught him‚ firsthand‚ the horrors of these kinds of drugs. On Scyphus‚ Go-Juice was ruled a controlled substance and was never allowed to be used outside of by military forces‚ who needed the drug for its spectacular stimulative properties. This‚ however
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pH & Enzyme Action Aim: To inspect the effects of the pH on enzymes. Apparatus: 100 cm³ Beaker 3 – 5cm³ Syringes 2 Test Tube Racks with 8 Test Tubes Stop-watch Ruler Dropping bottle of detergent Marker Pen Masking Tape 400cm³ Hydrogen Peroxide 200cm³ Liver Catalase Solution 100cm³ of following Buffer Solution – pH5 pH7 pH9 pH11 Method: The materials were collected. The test tube rack one with 4 test tubes had been labelled A to D. The 2cm³ of each buffer solution
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How does temperature affect the rate of reaction for Lipase? As the temperature increases‚ so will the rate of enzyme reaction. However‚ as the temperature exceeds the optimum the rate of reaction will decrease. I predict that at temperatures above 70°C the enzyme lipase will become denatured and at temperatures below 10°C the enzyme will become inactive. Since lipase operates within the human body I’d also predict that its optimum temperature would be around human body temperature which is approximately
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