Procedure 1. Obtain 8 large paperclips‚ a ruler‚ and masking tape. 2. Bend paperclip to form a “U” or “V” shape so the ends are 1/2 centimeter apart. 3. Put masking tape across the “legs” of the paperclip to maintain the end distance of your caliper. Label the paperclip end distance on masking tape 4. Repeat steps 2 and 3 to make calipers with measurements of one‚ two‚ three‚ four and five cm. For wider distances‚ use sticky tape to hold an opened paperclip onto the zero mark of a
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Beetroot Cells with High temperatures and low pH solutions Friday 15th March 2013 Abstract (50) The aim of this investigation was to study the effects of temperature and a low pH solution on beetroot cells. Introduction (200) The general belief amongst our group members was: an increase in temperature will damage the permeability of the plasma membrane. Also‚ the heat will break away the permeability. If the pH solution is 7 or greater there will be no change but the lower the pH the more proteins
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may expose you to splashes or sprays of blood or body fluids 2. Why should you consider a body fluid capable of infecting you with disease? o I think you should be aware and alert because its precaution to practice when youre working in a lab setting. 3. Describe how to dispose of waste material contaminated with body fluids. o You should dispose all waste material in the correct disposal area‚ and you can throw away the waste materials in the biohazard container. 4. Explain how to safely
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Lab #2: Energy in Cell Virtual Lab - Week 3 NAME: ________________________________________ 1. What is the importance of the light and dark reactions in photosynthesis? Photosynthesis works by absorbing light. Our sun gives off energy and the chlorophyll from the plant absorb this energy. The energy is then used to separate water into hydrogen and oxygen and then they combine hydrogen and carbon dioxide to make sugars. 2. What happens to food energy during photosynthesis? During
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Virtual Lab: The Cell Cycle and Cancer Worksheet 1. In which phase of mitosis do each of the following occur: a. Centromeres split and chromosomes move toward opposite sides of the cell b. Chromatin coils to form visible chromosomes c. The nuclear membrane disappears d. Sister chromatids line up in the center of the cell 2. In which phases of mitosis are sister chromatids visible‚ and attached to each other at the centromere? Table 1: Record your data for the number of cells in each
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the most energy per gram because they are mostly made of sugar and glucose which tends to release high amounts of energy when consumed since they are monosaccharide’s. Materials and Procedure List of materials used: * Safety Goggles * Lab apron * 10 cm by 10 cm piece of cardboard * Aluminum foil * 2 Large paper clips * Tape * Calorimeter (aluminum can‚ paper clips‚ copper string) * Ring stand * Thermometer * Electronic balance * Glass stirring rod
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Light microscope Method: 1) A piece of banana was place on a tile and a section was cut across the piece of banana about 5mm thick. 2) The surface of the banana was covered with iodine solution and left for about one minute. 3) The distribution of starch in the section of the banana was then illustrated in the outline below. 4) With the remaining piece of banana a microscope slide was wiped across its surface. 5) Iodine solution was then added to the tissue smear that
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1. Nature‚ 2001 2. David W. Pfennig‚ Karin S. Pfennig‚ and William R. Harcombe 3. Batesian Mimicry: When a harmless species mimics a dangerous species to confuse them so they are not harmed. Sympatric: A speciation in which new species evolve from a single ancestral species while inhabiting the same geographic region. Allopatric: Occurring in separate‚ nonoverlapping geographic areas 4. Organism- Reptile Genus- Micrurus Species- fulvius Common Names- Coral Snake Organism- Reptile
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Virtual Lab: The Cell Cycle and Cancer Worksheet 1. In which phase of mitosis do each of the following occur: a. Centromeres split and chromosomes move toward opposite sides of the cell- Anaphase b. Chromatin coils to form visible chromosomes - Prophase c. The nuclear membrane disappears- Prophase d. Sister chromatids line up in the center of the cell- Metaphase 2. In which phases of mitosis are sister chromatids visible‚ and attached to each other at the centromere? Metaphase
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ABSTRACT: Two separate variables were hypothesized and tested within the confines of the experiment on their effects on the productivity of lactase enzyme. The measurement of light absorbance levels of different solutions based on both the concentration of o-nitrophenol (ONP) as well as the pH of the solution tested. To begin with‚ differing concentrations of ONP were tested to find the absorbance levels of ONP. Three different pH values‚ 5‚ 6‚ and 7‚ in solution‚ were tested over a period of 8
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