certain functional activities which include metabolism‚ growth‚ reproduction‚ and some form of responsiveness and adaptation. 2. What are the characteristics of living things? Organization Homeostasis Metabolism Growth Adaptation Response Reproduction 3. Create a table with two columns with the headings living and non-living and place the following under the appropriate columns. Frog‚ snail‚ ovule‚ liver‚ flower petals‚ hair follicles‚ carbon dioxide‚ tear ducts‚ heart‚ peas‚ algae‚
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The purpose of this lab was to observe the rate of osmosis and diffusion‚ as well as the effect of molecular size of the particles on this rate. Part I of the lab was a demonstration of osmosis and diffusion‚ that dealt with raisins in different liquid environments‚ each with a different concentration of sugar. Part IV of the lab was using the same idea as the demonstration‚ by putting objects in different concentrations of a substance; in this case elodea leaves in salt water. In both cases‚ the
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My Investigation on osmosis Osmosis is a special kind of diffusion. While diffusion can describe the movement of any kind of molecule‚ osmosis is only about the movement of water molecules. To show this diffusion I will be using potato discs‚ of the same size and mass‚ in different concentrations of sugar solution to find out whether the mass of the discs increases or decreases depending on the concentration. I predict that when the sugar solution is 0% the mass will increase as there is
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zmosis The IB Lab Report Measuring osmosis 1. Introduction My experiment is about osmosis on a potato and if or the quantity of salt affects osmosis. I would do the experiment with 5 potatoes cut into squares all the potatoes weight the same so the weight can`t be a variable the I put the potatoes on 5 different plastic cups with different amounts of salt and then I weight them again to see if the quantity of salt affected the osmosis of potatoes 1a. Research question ¿Does the quantity
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concentration. When the molecules have diffused so that they are in a uniform concentration‚ this state is called equilibrium. This phenomenon plays a key role in many disciplines of biology‚ physics‚ and chemistry. It is closely related to the way in which cells take up nutrients‚ thus life could not exist without it. Regardless of the state of matter that a group of molecules finds itself in‚ all the molecules are moving to some degree. They not only move‚ but they do so randomly‚ in no particular pattern
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because the lower the concentration of sugar the greater its water potential and consequently the faster the rate of osmosis. The results show that in each of the five sugar solutions‚ the rate of osmosis decreased with time. This happened because the difference in water potential between the inside and the outside of the beetroot time decreased as the experiment proceeded. Osmosis occurred most in distilled water because this contained the highest water potential when compared with the other beakers
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Introduction In chemistry‚ substances require a certain amount of energy in the form of average kinetic energy (temperature) to freeze. To reach the temperature a substance requires to freeze‚ it must lose a certain amount of heat energy (a form of energy transferred from one object to another‚ because of a temperature difference). When a substance reaches its freezing point and begins to freeze‚ its temperature remains constant until it is completely frozen. However‚ in order to melt a substance
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Living Wills‚ sometimes called Advanced Directives‚ are legal documents accepted in all 50 states. They clearly define a person’s wish to decline life-support or medical treatment in certain circumstances‚ usually when death is imminent. Generally‚ a living will takes effect when a person becomes terminally ill‚ permanently unconscious or conscious with irreversible brain damage. <br> <br>A living will also allows a person to state with particularity the forms of treatment are wanted and not wanted
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Lab # 2 Diffusion & Osmosis Introduction Kinetic energy‚ a root of energy stored in cells‚ causes molecules to hit into each other and move in new directions. Diffusion is the result of this contact. Diffusion is the random movement of molecules to an area of lower concentration from an area of higher concentration. Osmosis is a type of diffusion. This is the diffusion of water through a selectively permeable membrane from a region of higher water potential to a region of lower water
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Living Wills Imagine yourself lying in a hospital bed oblivious to the world around you‚ unable to move or show any signs of life. Your own existence controlled by an I.V.‚ a respiratory machine‚ and a feeding tube. In essence‚ you are dead. Your body is no longer able to sustain life. Your life’s entire purpose is now replaced by a machine. You are being kept alive by artificial means. At this point‚ the question arises: Should you be kept alive by these means or should you be allowed to
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