IB HL BIOLOGY Dialysis Lab: Exploring Osmosis and Diffusion Through A Membrane Introduction: Dialysis is the flow of certain solutes through a semi permeable membrane. Dialysis is usually used on patients with failing kidneys to clinically purify blood in their kidneys‚ or other regions of their bodies. The dialysate contains waste matter that flows from the blood our of the dialysis tubing. Question/aim of lab: To test the solutions inside and outside the dialysis tubing with Benedict’s
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AP/IB Biology Lab Assessment The effect of various fruit and vegetable cell membranes on their water potential Independent variable: Type of fruit or vegetable. (Produce used: Russet potatoes‚ Pascal celery‚ Gala apple‚ Navel orange‚ and Imperator carrot). The fruit or vegetable will be placed in six 56.7 gram cups‚ ranging with sucrose molarities of 0 (distilled water)‚ 0.2‚ 0.4‚ 0.6‚ 0.8‚ 1.0‚ with 5 trials‚ leading to 30 cups for each produce variable. Dependent variable: The water potential
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Written Assignment Diploma Session May 2015 Reflective Statement Word Count: 397 words Written Assignment Word Count: 1‚485 words English A Literature HL Reflective Statement During the interactive oral‚ we discussed the main theme of the meaninglessness of human life that is present in The Stranger by Albert Camus. We emphasized mainly on Meursault’s detached and unemotional characteristics‚ especially when the jury uses this against him at his trial: “He stated that
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Jonghyun Choe March 25 2011 Math IB SL Internal Assessment – LASCAP’S Fraction The goal of this task is to consider a set of fractions which are presented in a symmetrical‚ recurring sequence‚ and to find a general statement for the pattern. The presented pattern is: Row 1 1 1 Row 2 1 32 1 Row
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Business and Management 1A Should Hari Shankar & Sons adapt new strategies to decrease the gold carrot in jewellery in order to aim at mass media? Table of Contents Letter of authenticity Acknowledgement Executive Summary 3 Research Proposal 4 1. Introduction ……………………………….................. 5 2. Methodology …………………………………............... 6 3. Results and Data Findings …………………………… 7 a. Traditional jewellery market....................
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Biology Enzymes IA Design Introduction: Enzymes are globular proteins‚ they are responsible for most of the chemical activities of a living organism. They act as catalysts‚ substances that affects the reaction of other substances without being destroyed or altered during the process. They are extremely efficient in the body system of living organisms‚ one enzyme may catalyse over a thousand chemical reactions every second. But there are certain conditions that need to be fulfilled in order for the
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Determining the equilibrium constant from pH values of changing concentrations of ethanoic acid Design Research question: How will altering the concentrations of ethanoic acid affect the pH value‚ and‚ in-turn‚ the equilibrium constant? Background information: When weak acids react‚ the reaction typically does not go to completion. Rather‚ the system goes to an intermediate state in which the rates of the forward and reverse reactions are equal. Such a system is said to be in chemical equilibrium
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AIM To find the acceleration of an object when falling down from a height in the presence of earth’s gravitational field‚ which is also known as free fall. Air resistance is neglected in this experiment. THEORY As an object is released from a height from the ground under the influence of the Earth’s gravitational force‚ the object will always fall under a constant rate of acceleration. Unlike in space‚ where object will just float around after being released‚ object falling on Earth will always
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ENGLISH HL SHAKESPEARE- MACBETH ESSAY It is human nature to be intrigued by all things mystical and dangerous. We fear the unknown but seek it nonetheless out of greed. Most of Shakespeare’s works hold an element of the supernatural and the play Macbeth is no exception. In this play we see a contemporary morality that warns of the dangers of trafficking with instruments of darkness; the witches in the play prophesize of Macbeths future as king‚ and Macbeth blinded by his hunger for power fails
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Background Research Yeast are eukaryotic microorganisms just like other organisms‚ they must respire in order to survive. Respiration can be defined as the controlled release of energy from organic compounds to form adenosine triphosphate (ATP). The type of respiration that occurs is called aerobic respiration. It occurs when glucose and oxygen are present. It can be summarized by the equation: . Enzymes play a very significant part in respiration. During the different stages of respiration‚ enzymes
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