of sucrose in the dialysis bag emerged in distilled water and the potato cores emerged in concentrations of sucrose. The data reinforces the principles of Osmosis and Diffusion‚ and in a biological context‚ we can simulate how water and particles move in and out of our own cells. Introduction Objective: 1. Investigate the process of osmosis and diffusion in a model of a membrane system. 2. Investigate the effect of solute concentration on water potential as it relates to living plant tissue.
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article “Sea Salt Around the World is Contaminated by Plastic” researchers discover that microplastics in sea salt from around the US‚ Europe‚ and China. This also proves that plastic pollution is pervasive in the environment. Research proved that tiny plastic particles have been found in our sea salt. This is dangerous because it means that microplastics are entering our daily food chain through the salts in our diets. Scientist believe that most of the contamination comes from water bottles and
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affect the rate of enzymes reactions. One of them is pH‚ which influence on the enzyme activity will be the subject of this investigation. Catalase of potato tuber cells will be the enzyme used in the experiment. RESEARCH QUESTIONWhat is the influence of different values of pH on the activity of catalase in potato tuber cells?VARIABLESIndependent: potato discs treatment (placing them into buffer solutions of different pH values‚ mixed with hydrogen peroxide)Dependent: the activity of the catalase‚ reflected
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Making a Potato Powered Light Bulb Materials: A large potato Two pennies Two zinc-plated nails or screws Three pieces of copper wire A very small light bulb or LED light 1) Get a potato and cut it in half. Then make a small slit in each half just big enough to put a penny into. 2) Cut two pieces of copper wire and wrap one around one of the pennies a few times‚ and wrap the other one around the other penny a few times as well. 3) Take a third piece of copper
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Salt Marshes‚Mangroves‚and Coral Reefs Salt Marshes • Salt marshes are found along low lying coastlines where boggy ground is flooded by sea water either daily or less frequently. • Many UK salt marshes have been reclaimed for farm land‚ but those that remain provide valuable habitats where salt-tolerant plants grow and birds nest. Salt marshes also pay a vital role for coastal protection‚ they contain creeks which allow tidal waters to flow both in and out which reduces the wave energy
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Salt and Ice; Minnesotas Battle Abstract Salt is applied in the thousands of tons every year to reduce ice and‚ in turn‚ reduce accidents on Minnesota roads. When the ice and snow melt each spring‚ the majority of this solution is relieved into rivers and lakes through storm drains on Minnesota roads. The salt negatively affects fish and aquatic plants by dehydrating them and altering fertilization. The damaging effects of sodium chloride are long term and not easily repaired. The Minnesota
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America’s Great Potato Baron Eric Schlosser’s biography “Fast Food Nation: Why the Fries Taste Good” explains how this invention started out of a simple potato by a man named John R. Simplot who was raised on a farm‚ un-educated and by his own account‚ left home at a young age. According to Eric Schlosser’s claim‚ “John Richard Simplot‚ America’s great potato baron‚ whose seemingly inexhaustible energy and willingness to take risk built an empire base on French fries” (Schlosser par. 2). The
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as a background note. You have to use a lot for it to become truly overpowering but when used in excess‚ it pushes its way to the forefront and can make a dish excessively bitter. If you are faced with this problem and need a way to counteract the effects of too much coriander‚ you have options. Consider the following remedies. Dilute The simplest way to balance the coriander flavor is to add more of everything else. You can either make another batch of the recipe and add it to the one with
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The Calvin and Hobbs comic strip portraying Hobbs’ new approach towards ethical behavior communicates a less vastly recognized point of view regarding the need for morals and justifies why in fact‚ people regard them as unneeded at all. Hobbs expresses a few ideas in the strip; “the ends justify the means” ‚ “might makes right‚ the winners write the history boxes” and “it’s a dog eat dog world”. The first idea‚ “the ends justify the means”‚ expresses a widely spread notion that in a materialistic
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Spilled Salt By: Barbara Neely Something I liked about this story was that it had a realistic plot. It’s completely possible for a mother to have her son go to jail and come back unexpected. This actually happened to someone I knew‚ they were in jail for raping a girl‚ when they really didn’t and his mom had a hard time dealing with him being back from jail when really she just wanted him to leave her life completely. Something I didn’t like about the story was the character of the mom‚ she seemed
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