TABLE OF CONTENTS TABLE OF CONTENTS page number 1 DESIGN 1 1.1 Defining the problem 2 Focus / research question Hypothesis Background information / theory Investigation Variables 1.2 Controlling Variables 3 Treatment of Controlled Variables Control Experiment 1.3 Experimental Method 4 Materials Risk Assessment Method 2 DATA COLLECTION and PROCESSING * 2.1 Recording Raw Data Quantitative Data Qualitative Data 2.2 Processing
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turgor in plant cells Investigation * Get a single layer of plant cells. If you are using red onion‚ cut a 1 cm square from a fleshy piece of onion and then peel off a single layer of the red cells. If you are using rhubarb‚ peel a piece from the epidermis. If you are using toadflax peel a piece of the lower epidermis of a leaf. * Place the strip on a slide and cover it with a drop or two of distilled water. Add a cover slip. * Look at the cells through a microscope. Start with the
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The Comparison and Contraction Between Various Skin Cells By: Michael McDaniel‚ Latoya Gates‚ Cristy Barfield‚ and Danielle Chapelle Abstract During this experiment we planned to compare and contrast human cheek cells of a variety of age groups‚ different stages of skin‚ and difference in species. We wanted to see if age could correlate to cell structure and size‚ if animal and human cells differed and if epidermal and cheek cells could differ in shape‚ size‚ and color. The age groups that
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15 Minutes of Fame Andy Warhol‚ in February 1968‚ showed his first exhibition at the Moderna Museet gallery in Stockholm. The quote “In The future everybody will be world famous for fifteen minutes‚” appeared in the exhibition catalogue. This quote is known as one of Warhol’s most famous quotations. The quote soon became tiresome because at every interview Warhol was asked about it‚ but in the end his quote became quite true. Warhol stated that “In the future everyone will be famous for fifteen
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An electron microscope is a type of microscope that produces an electronically-magnified image of a specimen for detailed observation. The electron microscope (EM) uses a particle beam of electrons to illuminate the specimen and create a magnified image of it. The microscope has a greater resolving power than a light-powered optical microscope‚ because it uses electrons that have wavelengths about 100‚000 times shorter than visible light (photons)‚ and can achieve magnifications of up to 1‚000‚000x
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Asses the impact of the development of the electron microscope on our understanding of the cell and it’s role in cell theory. Since the invention of the electron microscope in 1928 scientists have been able to study the ultrastructure of cells‚ that is‚ parts smaller than what can be seen with a light microscope‚ otherwise known as organelles and their functions. Light microscopes had been developed to a point where the quality of the lenses was not limiting the detail in the image‚ the main
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potential. (Tzahi 2006) To demonstrate osmosis lab‚ artificial cells were made with various sucrose concentrations and were placed into beakers of different sucrose solutions. Overall the results showed that the higher percentage of concentration gradient of sucrose‚ the more the artificial cells absorbed. Introduction: The phenomenon being investigated in the lab was how the concentration gradient affects the rate of osmosis in a cell. Osmosis is the passive movement of water from and area of high
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Urbina Post Harvesting Onion Basic Storage & Handling Tips for Dry Bulb Onions: Always handle onions with care. Do not drop onions as this often causes bruising and internal decay. Bagged or boxed onions should be stored at least one foot away from walls and other pallets to allow proper air movement. Keep stacks of bags or boxes at five feet or less. Store onions in a cool‚ dry‚ well-ventilated area. Maintain storage temperature of 45-55°F. Do not wrap onions in plastic or store in plastic
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of the solutions is inside the vacuole of a potato cell. We will investigate how the mass of the potato chips change in different sucrose solution concentrations. We will use osmosis to do this. I will be measuring and controlling many different variables‚ these include; - The dependent Variable Weight of potato chip Independent Variable Concentration of sucrose Control Variables consist of; - 1. Temperature 2. Surface area of potato 3. Volume of sucrose solution 4. Same
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Light Microscopy Lab Lab write-up 1 Parveen Rajper Biology 101 Principles of Biology 1 September 29‚ 2012 Introduction: The light microscope helps see the microscopic world that the naked eye cannot see. If there were no microscopes in the world‚ than it would be very difficult to understand the many particles that surround the living world. The purpose of this lab experiment is to become familiar with a microscope. It is hypothesized that it will be difficult
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