Cells are the structural and functional units of all living organisms; each specialised to perform dedicated duties throughout their life span. All living organisms can be sorted into one of two groups depending on the fundamental structure of their cells. These two groups are the prokaryotes and the eukaryotes. A Prokaryote cell is the first form of cells for many millions of years until the eukaryote cell evolved from the prokaryote cell‚ which created life. Prokaryote cells are organisms made
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Temperature and enzyme activity Aim: To determine the effect of which the temperature of the enzyme has on the rate of the enzyme catalysed reaction. Hypothesis: The rate of reaction of an enzyme catalysed reaction will increase as the temperature of the enzyme approaches the optimum temperature. Surpassing the optimum temperature will result in a drop in enzyme activity. Materials: 6% hydrogen peroxide Liver suspension 10 test tubes 4 beakers Thermometers Measuring cylinders Test
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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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IB Art SL: Artist Statement Art is my way of expressing my ideas‚ emotions‚ and creativity. Because art is a reflection of life‚ I’m able to use art to channel my ideas or events that relates to my life. Some of my art are made to celebrate something whether it be a holiday‚ a joyful event‚ or just life itself. Some however‚ give a darker vibe and expose pain‚ sorrows‚ and tragedies. I wish to expose these unpleasant elements because they bring in raw emotions. Through my art‚ I aim to make
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Lacsap’s Fractions IB Math SL SL Type 1 December 11‚ 2012 Lacsap’s Fractions: Lacsap is Pascal backwards and the way that Lacsap’s fractions are presented is fairly similar to Pascal’s triangle. Thus‚ various aspects of Pascal’s triangle can be applied in Lacsap’s fraction. To determine the numerators: To determine the numerator (n)‚ consider it in relation to the number of the row (r) that it is a part of. Consider the five rows below: Row 1
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Data: quantitative The data below is the raw data collected during the lab to test the photosynthetic rate of five different .75% colored bicarbonate solutions. Time taken for three spinach leaf disks to rise to the top of .75% bicarbonate solution (measured in minutes) Uncertainty +/- 10 seconds Uncertainty +/- 10 seconds Qualitative: This data is a record of the physical reactions or visual observations during the lab * Some of the leaf disks are not cut properly * Blue solution
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Enzymes are a major role in the process of accelerating chemical reactions. Environmental factors affect the enzymes‚ These environmental factors include ph levels and body temperature. While both of these environmental factors affect the enzyme‚ body temperature affects the enzymes the most and can result in death. Enzymes are affected by high body temperature. Enzymes are highly specific and they work at certain temperature levels depending if it’s hot or cold. However‚ when the
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IB Math Studies Internal Assessment: What is the Relationship between Points per Game Scored and the Height of the Players in the NBA? By xxxxxxxxx Candidate #xxxxxx February 17th 20xx Mrsxxxx Contents Introduction……………………………………1 Chi-Squared Test……………………………...2 Correlation Coefficient Calculations and Line of Best Fit Calculations………………………...3-4 Discussion/Validity……………………………5 Conclusion…………………………………….5 Raw Data……………………………………6-7 Bibliography…………………………………..8 What is the
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There are COX enzyme isoforms include COX-1 and COX-2. (Figure 3.8) These enzymes originate from different genes and have distinct tissue-specific expressions and biologic functions. COX-1 is constitutively expressed in most tissues and believed to responsible for the production of prostanoids in homeostasis‚ such as gastric epithelial cytoprotection and renal blood flow maintenance. COX-2 expression is inducibly expressed only at marginal levels under condition in many tissues and is upregulated
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cheese. Lactic acid bacteria(LAB)‚ a bacteria that can be found in the production of cheese‚ its stress gene was investigated in the experiment by using various biochemical and genetic techniques to identify and extract. The characterisation of the strain illustrates how identification of strains differ using different methods‚ such as gram stain and 16s rRNA screening. After the characterisation‚ the stress gene isolation assist the further understanding of the gene on LAB be giving different stress
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