Biology SL – Chapter 4 questions Page 57 1. a) Difference between protein and polypeptide: Proteins have a structure formed by one or more polypeptide chains whilst a polypeptide is a chain of amino acids. b) Fat and oil differences: They are both lipids‚ but fats are solid whilst oil are liquids. c) Difference between starch and glycogen: Starch is a polysaccharide found in plant tissue whilst glycogen has polysaccharide found in animals. d) Condensation and hydrolysis:
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Color of Water Chapter Analysis Chapters: 13-14 The significance of these two chapters of the story revolves around the city of New York and how it fit in to both Ruth and McBride’s issues they had to deal with in their youth. Ruth’s experiences with the city were similar but yet different‚ then her son’s. When she visited New York she described it as “an eyepopper‚”(130) that consisted of so many “people rushing about‚”(130) that made it seem like everyone was “too busy to care about what
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any change in width and weight. Question Does water affect the weight and appearance of wood over periods of time? Hypothesis I believe Red Oak will have the most change in weight in saltwater and the most change in appearance will be Pine in saltwater. Materials 1/3 8ft of Red oak 1/3 8ft of Yellow Pine 1/3 8ft of Treated Yellow Pine 1/3 8ft of Cedar 4 ice cream buckets w/ lids Circular Saw Triple beam balance Ruler Rainwater Beach water Procedures 1. Get cedar‚ red oak‚ yellow
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Slide#2 1. Place 1 drop of 0.9% NaCl with the drop of blood (use the filter paper to absorb excess liquid). 2. Add a cover-slip and use filter paper to absorb extra liquid (if necessary). 3. Observe cells under 40X then IOOX and then high power (400X). 4. The sheep blood in an isotonic solution Slide#3 1. Place 1 drop of 10% NaCl solution onto the slide
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Chapter 8 Water/Minerals Sunday‚ March 24‚ 2013 6:05 PM Minerals- naturally occurring‚ inorganic‚ homogeneous substances; chemical elements. Major minerals- essential mineral nutrients required in the adult diet in amounts greater than 100 milligrams per day. Also called macrominerals. Trace minerals- essential mineral nutrients required in the adult diet in amounts less than 100 milligrams per day. Also called microminerals. Water-The brain is composed of approximately 80% water
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1. Double-Strength chloroform water B.P Product Manufacturing Record Product Details Product Code: Name: Double-Strength chloroform water B.P Batch NO: Date of Manufacture Quantity: Ingredients Ingredient Batch NO Formula For 1000 ml Amount Used 100ml POM Check 1. Chloroform 2. Purified water up to
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this unimolecular dissociation step‚ a proton from one of the adjacent carbons is captured to reform the acid catalyst‚ and the elimination reaction is complete with the formation of the double bond. Water is distilled out of the reaction to promote a high yield of 4-methylcylohexene. By removing water‚ the reaction is forced in the forward direction due to Le Châtelier’s Principle. In order to determine
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Adeoti Taylor Chem2583 Organic Chemistry Laboratory Class ID:8622098 Organic Lab 2 2583-04 Instructor: Andy Szalkiewicz 9/30/2014 Recrystallization Objective/Abstract: The purpose of this lab is to purify solids contaminated by relatively small amount of impurities by a technique called Recrystallization. Compounds that have different solubility at different temperature usually can be recrystallized. Formulas and Structures: Benzoic Acid Methanol Percent Recovery: Indicates how much of the
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Drew Staples 6/12/14 Properties of water Question Does mixing water with other substances change it’s boiling point. Research The boiling point of a liquid is when the temperature causes the vapor pressure to be equal to the air. Air density will change waters boiling point. High altitudes give water a lower boiling point. Hypothesis If the water is less dense then it will boil faster and the boiling point will be lower. Materials 1 Pot A Sink A Stove 1 tablespoon of sugar 1
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Comparing Hardness and Density of a Solid Name of Solid Hardness Density Talc 1 2.75 Fluorite 4 3.13 Calcite 3 2.71 Quartz 7 2.62 Gypsum 2 2.3 Apatite 5 3.19 My graph has no correlation. My hypothesis for this Experiment is that a mineral is able to scratch a mineral with a lower number and can‚ therefore be scratched by a mineral with a higher number. A mineral’s density is the amount of matter in a given space (mass/volume). Each mineral has a characteristic density (density
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