Water beneath the surface becomes insulated and less likely to freeze. | Lakes tend not to freeze completely so aquatic organisms aren’t killed as temperatures fall. | Thermal Stability | Large bodies of water have fairly constant temperatures.Evaporation of water can cool surfaces by removing heat. | Oceans provide a relatively stable environment in terms of temperature.Many land-based organisms use evaporation as a cooling mechanism, for example in panting or sweating. | Metabolic | Water takes part as a reactant in some chemical processes.
Body fluids are maintained at a constant level by several homeostatic mechanisms. • Osmosis Osmosis is the movement of a solvent, such as water, across a semipermeable membrane from a solution that has a low solute concentration to one that has a higher solute concentration. • Diffusion Diffusion is a process where particles within a substance, move from an area of high concentration to one of a low concentration. • Active transport Active transport is the movement of particles or ions across a cell membrane against a concentration gradient, an area of low to high concentration, which requires the use of energy. (Harris, P., Nagy,S.
Cycles in biology A cycle is a series of events repeated in the same order. Cycles are a major aspect of biology which occurs in a ecosystem, plants and animals. One cycle which is part of the ecosystem is the water cycle. The sun heats water in oceans and seas and water evaporates as water vapour into the air. Transpiration removes water from plants and soil.
The evidence of sea floor spreading was further supported by Vine and Drummond, who studied the magnetic pattern of the sea floor. They found that the Earth’s magnetic field changes over time, because as magma from the mantle rises to the crust it cools but the basalt will align to the field it cools to. It is also found that on either side of mid oceanic ridges there were symmetrical magnetic patterns, so suggesting that the ocean was created at the mid oceanic ridges and as new ocean floor cooled, it pushed the crust away. Both Hess and Vine and Drummond found evidence that is crucial to the explanation of how continental drift happened, and it is very important in the development of geologists understanding, however other people found evidence to support continental drift also. Dan McKenzie went on to further explain sea floor spreading, being able to explain why new crust was made at mid oceanic ridges.
Name: 6.03: Calorimetry Data and Observations: Part I: Insert a complete data table, including appropriate significant figures and units, in the space below. Also include any observations that you made over the course of part I. (4 points) I observed that when the metal is placed inside the calorimeter, it transfers heat to the water making the water increase temperature while the metal will decrease temperature. I also noticed that the system was the metal and the surroundings is the water, this is because the water is taking in the heat from the metal making the water warm. Metal Name Mass of Metal Volume of water Initial temp.
P4- Explain the Physiology of two named body systems in relation to energy metabolism in the body. In this essay I am going to be explaining how energy is made in the body and two body systems that help to produce this energy. “The metabolic systems are responsible for the chemical reactions within the body. These reactions are involved in the maintenance of the living organism and may be involved in reactions that break compounds down catabolic reactions or reactions which build compounds up anabolic reactions”. (King R 2012) They all require energy to work.
The salts will be dissolved in distilled water by small quantities until the reaction reaches When ionic compounds dissolve in water, they either absorb energy from or release energy to the surroundings. If a chemical reaction absorbs heat from the surroundings, it is an endothermic reaction. If a solution releases heat to its surroundings, it is an exothermic reaction. The enthalpy of dissolution is the enthalpy change associated with the dissolution of a substance in a solvent at a constant pressure. The change in enthalpy relies on the concentration of the salt solution, because different concentrations will produce different enthalpies.
Surface area is a principle concept related to many areas in biological functioning. Heat as well as substances can be transferred between and within the body and the environment. Explain the relationship between surface area and this transfer. Cells require nutrients and gasses such as Oxygen to move into them. They also require waste substances and gasses such as Carbon Dioxide to move out of them.
What about at an increased temperature? Answer = The weather may be calm with decreased temperatures verses a warmer temperature. The sun heats the water to evaporate and to produce water vapors that transform into clouds. According to our lab manual, clouds form at many different altitudes in the troposphere when water vapor in warm air rises and cools. Experiment 1: Water Movement POST LAB QUESTIONS 1.
Record your hypothesis on page 123. -My hypothesis is we can determine the different between each chemical reaction by the temperature change.To descide which one is exothermic and endothermic. 4. Summarize the procedures you will follow to test your hypothesis. -We measured in each chemical and added water besides, HCl we added NaOH.