“The Enzyme Reaction” An enzyme is a protein that acts as a catalyst‚ which brings out a biochemical reaction. A Catalase enzyme‚ the enzyme tested in this experiment‚ is found in almost all living organisms that are exposed daily to oxygen (such as fruits‚ vegetables and animals). Background Information The Catalase enzyme in this experiment is known for being less affective the warmer the temperature is. According to “Science fair projects” an enzyme becomes unstable at higher
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The aim of this experiment was to show the water potentials of young‚ old and damaged potatoes and different sucrose concentrations (0.15‚ 0.20‚ 0.25‚ 0.30‚ 0.35 and 0.50). It was expected that the potatoes would lose weight as the potatoes would have lower water potential when placed in a solution ‚ and in this can be taken from the theory of osmosis which states that “the passive diffusion of water molecules across a selectively permeable membrane down a concentration gradient” (Taylor and Bruenn
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measure how different concentrations of mythelin blue affects the rate of diffusion through agar jelly. Hypothesis The diffusion of mythelin blue is directly proportional to its concentration‚ hence as the concentration increases; the rate of diffusion increases too. Controlled Variables Time time was kept constant while testing the diffusion spread of mythelin blue with each concentration. Temperature the experiment was undertaken in room temperature as change in temperature can affect the rate
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How and why does Macbeth change throughout the play? At the beginning of the play Macbeth was a noble‚ kind‚ ruthful‚ courageous and a loyal soldier. Throughout the play Macbeth changes from the beloved good man praised by most to an evil hated aggressive‚ ruthless murderer. Many different reasons were the cause of Macbeth’s changes for example; the influence of the witches’ predictions and Lady Macbeth’s manipulation had affected Macbeth extremely. At first Macbeth appears to be a brave‚ loyal
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Investigation into How the Concentration of a Reactant Can Affect the Rate of Reaction Aim To plan an investigation that allows me to measure the effect of increasing the concentration of a reactant on the rate of reaction. With the results generated‚ it is also hoped to draw accurate conclusions and explain the results using scientific knowledge. Introduction Some reactions are fast‚ for example neutralisation or burning magnesium in air to produce magnesium oxide. However‚ other reactions can be slow
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of a crisis this could really cause trouble. After all people can’t think straight when something goes wrong‚ it’s human nature to assume things rather than to rationally think. Humans are very social beings and they will follow anyone who they think is correct. It doesn’t take much for someone to blindly trust those who say they are doing good. The problem with this is that many of those they trust know what they want‚ and that thing is power. Power is the thing that no human can resist. It’s
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The Effect of Different Genres of Music on the Growth Rate of Garden Cress AIM The purpose of this experiment is to explore upon the possible correlation between musical stimulus and the growth rate of Lepidium sativum‚ commonly known as Garden Cress. It also aims to discover which genre amongst classical‚ jazz‚ and rock has the most beneficial effect on its growth rate. PERSONAL ENGAGEMENT The Garden Cress plant‚ better known by its botanical name Lepidium sativum‚ is amongst the many plants that
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POTENTIAL OF CELL SAP OF PLANT EPIDERMAL CELLS Aim: The purpose of this experiment is to investigate the effects that the molarity of the sucrose solution and distilled water have on the plasmolisys of epidermal cells of a red onion. Hypothesis: Taking in consideration osmosis‚ and my knowledge about it‚ my prediction is that as the molarity of the solution under which the cells are exposed will increase‚ also the amount of plasmolysed cells‚ counted from amount of undamaged cells taken into
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George Orwell that’s exactly what was occurring. The people in this society were always being watched and “big brother” knew what people were doing most of the time. Living in a place like that seems eerie and frightening. In the novel‚ they repeat this quote which is odd yet true in today’s society. The quote is “ war is peace‚ freedom is slavery and ignore is strength.” Comparing the 1984 novel to today’s society seems bizarre because this story is pretty unhinged. One may even believe that our society
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Each cell can be regarded as a metabolic compartment‚ as separate place where the chemical processes of that cell occur‚ the cell is made up of different organelles each specifically designed to carry out their function‚ and this is known as a cells ultrastrucure. All cells have a cell surface membrane; these are made up of phospholipids and make up a bilayer. A phospholipid has a hydrophilic head and a hydrophobic tail which is made up of 2 fatty acid chains; these are arranged is two layers with
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