The purpose of this experiment was to see if different temperatures affect the growth rate of crystals The
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The Semipermeability of Cell Membrane to Different Osmotic Environments Using Dialyzing Bag Model1 Sittie Johaynnah M. Sambarani Group 3 Sec. I-1L December 17‚ 2012 ------------------------------------------------- ------------------------------------------------- ------------------------------------------------- ------------------------------------------------- 1 A scientific paper in partial fulfillment of the requirements in Biology 10 Laboratory under Professor Junaldo
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Effects of Temperature and pH on Catalase Activity INTRODUCTION Enzymes are organic catalysts that spur metabolic reactions. The presence of an enzyme within a cell is essential in order for any sort of reaction to take place. All enzymes are complex proteins that act in an organism’s closely controlled internal environment. In such a homeostatic environment‚ the temperature and the pH (concentration of hydrogen ions)‚ remain within a fairly narrow range. Extreme variations in pH and temperature
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The plasma membrane is a fluid phospholipid bilayer. The outside of the bilayer is hydrophilic portions of porteins and phospholipids because they are exposed to water. This results in a stable membrane structure. Inside the bilayer hydrophobic portions of proteins and phospholipids because the inside of the bilayer is nonaqueous. the proteins bob in the fluid bilayer of phospholipids. The proteins also vary in structure and function. There are teh integral proteins; transmembrane
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The ginger root is from the plant zingiber officonate. It is from the same plant family as tumeric‚ a commonly used cooking spice. It has many uses in cooking and homeopathic medicine. Ginger root is grown in warmer climates‚ and used in landscaping as well as harvested in bulk. Ginger root is an herb. Ginger root is also known as several other names including amomum zingiber‚ ardraka‚ cochin ginger‚ gingembre‚ gan-jiang‚ sheng-jiang‚ and black ginger. First cultivated in South Asia and
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alcohols have on biological membranes. Membranes within cells are composed mainly of lipids and proteins and often serve to help maintain order within a cell by containing cellular materials. Different membranes have a variety of specific functions. One type of membrane-bound vacuole found in plant cells‚ the tonoplast‚ is quite large and usually contains water. In beet plants‚ this membrane-bound vacuole also contains a watersoluble red pigment‚ betacyanin‚ that gives the beet its characteristic color
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details) Bacteria: Nucleoid region‚ cell wall‚ plasma membrane‚ ribosomes‚ flagella Protist: Macronucleus‚ micronucleus‚ plasma membrane‚ cytoplasm‚ contractile vacuole Plant Cell: Nucleus‚ cell wall‚ plasma membrane‚ cytoplasm‚ chloroplast‚ mitochondria‚ vacuoles Animal Cell: Nucleus‚ nucleolus‚ plasma membrane‚ cytoplasm‚ mitochondria‚ golgi apparatus‚ rough ER‚ ribosome Questions
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impact of the temperature on every sample will stay the same‚ i.e. if having a bigger beetroot sample less pigments will be released into the test tube at lower temperature‚ or having a smaller beetroot sample more pigment will be released into the test tube. This error will change the results of the experiment at large. Therefore it is important to insure the sample sizes are the same. Temperature: As temperature will affect the beetroot cell membrane‚ I will keep the temperature constant throughout
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wire‚ the temperature of the wire will be increasing. Measure the temperature using the infrared thermometer. Record the ammeter reading as the temperature increases 10°C before disconnecting the wire from the circuit and measuring the wire resistance immediately using the ohm meter. 4. Repeat procedure 4 when the temperature of the wire increases every 10°C until the highest temperature is reached and the measurements are recorded. Conclusion The hypothesis that when the temperature of a wire
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Introduction In the design of engineering projects‚ one of the most important soil properties of interest to the soils engineer is permeability. To some degree‚ permeability will play a role in the design of almost any structure. For example‚ the durability of concrete is related to its permeability. In designs that make use of earthen materials (soils and rock‚ etc.) the permeability of these materials will usually be of great importance. Soils are permeable (water may flow through them) because they
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