Colleen Hamilton AP Lab 4: Determining the Rate of Cellular Respiration of Peas at Varying Temperatures and Stages of Germination I. Purpose and Intro The purpose of this lab is to determine the rate at which germinating peas respirate at varying temperatures and stages of germination. Cellular respiration is the set of metabolic reactions and processes that takes place in an organism’s cells in order to create ATP from sugar. It occurs in the mitochondria and comprises three stages: glycolysis
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example‚ people with a pink or orange test tube had the same substance‚ but with different amounts. They happened to come up with the range of freezing/melting point‚ 80 degrees Celsius. The people with a green or yellow test tube had the same substance‚ but also with different amounts. They all got around 53 degrees Celsius. This means that we can identify different substances from others by their freezing point‚ even if the mass is different. This is a characteristic property. I know that the boiling
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would be the runaway greenhouse effect where the increase of radiant energy from the surface would greatly slow the rise in temperature. Ahrens‚ C. (2015). Essentials of meteorology. Andover: Cengage Learning. 3. A temperature increase by 3 degrees Celsius would have dramatic effects as more areas of the world would
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Vilas Pol came up with an environmentally green method that breaks down plastics and transforms them into a highly usable substance for society. Chemist Vilas Pol inserted plastic bags into a specialized reactor in order to heat them to 700 degrees Celsius. This heating resulted in a fine black powder which contains tiny carbon spheres. This powder can form carbon nanotubes if a cobalt-based catalyst is added during the heating. The carbon nanotubes and carbon spheres formed from the plastic bags can
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Assignment 4 April‚ 7 2013 Mat222 In this week of class we have been taught how to evaluate‚ combine and find inverses of working relations or functions. We will be computing‚ composing‚ transforming and finding the inverse of some functions. We are working with the following functions: f(x) = 2x+5 g(x) = x2 -3 h(x) = (7-3x)/3 We have been asked to compute (f – h)(4). (f – h)(4) = f(4) – h(4) So we can evaluate each separately and then subtract. f(4)
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Ventilation and Oxygen Consumption in Fish Sally Ming Bio 102- PR# 2 12/12/12 Abstract Goldfish (Carassius Autarus)‚ when subjected to warm temperatures will have a high rate of ventilation compared to those exposed in colder environment. In a class experiment‚ we observed and recorded the effects of water temperature at [25 C] warm and [15 C] cold on ventilation and consumption rates in goldfish. For one hour at 15min intervals we observed differences in both ventilation and consumption
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’compare and group materials together‚ according to whether they are solids‚ liquids or gases and to observe that some materials change state when they are heated or cooled‚ and measure or research the temperature at which this happens in degrees Celsius (°C)’. I know that this worked because during the activity I asked the children around the room what the temperature needs to be like to melt the ice to water and water to ice‚ I asked which was the liquid and which was the solid and I what would
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tube. Tube one was placed in an ice-bath by adding ice and water in a 250ml beaker. Tube two was placed in the tube rack on the lab bench in a room temperature environment. Tube three was placed in a water bath at 50 degrees celsius‚ and tube four was set in the 70 degree celsius water bath. Tube five was placed in a boiling water bath of a beaker on the hot plate while wearing goggles for protection. Each tube was then left in the
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water is heating‚ place 10cm3 of water into each of ten test tubes. Label 85-45 and place in a water bath at 20 degree Celsius - Cut beetroot with a cork borer to length of 5cm. Use a borer with a diameter of 1cm - Place the beetroot cylinder into a beaker of water at 85 degrees‚ after one minute use forceps to transfer to test tube of water in water bath at 20 degrees celsius - As water in beaker cools repeat step 3 using fresh cylinder of beetroot. - Complete this cycle for 10 cylinders -
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ME224 Lab4 Introduction The purpose of this lab is to build a temperature monitor and controller for a small aluminum block. Techniques involved in this lab include using transistors as switches‚ calibrating transducers‚ and writing control programs in LabVIEW. The main piece of equipment used in this lab is an aluminum block apparatus; the block has several holes drilled into it and embedded in them is a resistance heater‚ a thermistor‚ and a thermometer. In addition‚ a simple circuit is attached
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