Temperature

Overwintering passerines in boreal regions require high metabolic rates in order to maintain a normal body temperature in the more extreme environmental conditions of the north i.e. shorter day length that reduces foraging time (Cooper and Gessman 2005). Small passerine, in particular the Black-Capped Chickadee (Parus atricapillus) henceforth chickadee, which weigh in at around 11g and have a high surface-area to volume ratio lose heat very quickly and must have a higher than normal rate of…

amylase have different optimal temperatures, which suggests that they function in different environments. Bacterial amylase, Bacillus Licheniformis, has an optimal temperature of 55ºC, while fungal amylase, Aspergillus Oryzae, has an optimal temperature between 25ºC and 55ºC, leaning more towards 55ºC. As we can tell from the results, temperature does have an effect on enzyme activity. As predicted, amylase activity increased until it reached its optimum temperature, where it was at its peak in…

Question: How does temperature affect the rate of osmosis in raisins? Background: Osmosis is the passage of a solvent through a semipermeable membrane from a less concentrated to a more concentrated solution until both solutions are of the same concentration We designed an experiment that would test if a raisins rate of osmosis is affected by the temperature of water it is placed in. The independent variable in this experiment was time which was 10 minute intervals. The dependent variable…

are included) and the typical comfort temperature while seated (1 met) for who is dressed with a jumper or a dress is 25ºC. When calculating the insulation of a garment it is to consider also where people stay when they are in that particular environment, for example if a person spend most of his time in that building seated in a chair (like in a office) it is also to consider the insulation given by that chair.. Air temperature and mean radiant temperature are two out of four environmental…

Do not touch the side or bottom of the beaker with the thermometer, this will result in an inaccurate temperature reading. Record the starting temperature in the corresponding area of the data table. Leave the thermometer in the water. Carefully place a sprig of the Elodea plant into the beaker of water. Secure the gas pressure sensor to the second ring stand with a utility…

protein found in milk. When the protease breaks down the casein, the opaque solution will become transparent. Theoretically, Enzyme activity increases with an increase in temperature and usually doubles every 10 degrees rise. This is due to the molecules moving faster and colliding more often. However at a certain point the temperature gets too high and the enzymes stop working. This is because…

was gradually increased as the temperature increased. Also, the vapor pressure was decreased as the temperature decreased. This means that the data values that obtained from this experiment were true values. The isoteniscope method was used to measure the variation of vapor pressure with temperature and determine the molar heat of vaporization of n-heptane. There are differences between the rising T and falling T sets of data. In the rising T set of data, the temperature was increased…

starting point. The independent variable was the temperature; this is what was being changed. The dependent variable was the amylase activity; this is what (should have) changed because of the temperature. The iodine was a marker. It showed whether starch was still present in the wells. From the results, starch was present in all the wells; it was present at every temperature and every time interval. The hypothesis was not supported because temperature did not affect any of the amylase; there…

air by means of purpose-provided aperture (such as openable windows, ventilators and shafts) and the natural forces of wind and temperature-difference pressures. In the process, fresh air is introduced and ventilated air is removed from an occupied space. The primary aim is to preserve the qualities of air. (Amit Gupta, 2006). It may also be used to lower the temperature inside an occupied area for thermal comfort. Basic Concept of Natural Ventilation Source: Google According to Eugenijakin…

1. Fill a mason jar half-full with tepid water. Put it on the hotplate and raise the temperature to 98 degrees. Make sure you can keep it at this temperature for several hours. 2. Wash your hands. Cover the surfaces adjacent to your kitchen stove with paper towels. Place the test tube racks close to the stove on the paper towels. 3. Fill the pot with water and bring to a boil. Uncap your test tubes. Using your kitchen tongs, carefully drop your graduated cylinder, test tubes and their caps in…