12. Provide a description of a cell surface specialization. A cell surface specialization can be defined as an extension of the cell surface which performs a specific function for a larger organ or tissue. Examples of cell surface specializations include microvilli‚ cilia‚ stereocilia‚ and goblet cells. Microvilli can be described as tiny finger-like folds made of microfilaments in the cell membrane‚ and functions to increase surface area for absorption. Cilia are longer‚ more hair-like projections
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substances through several ways‚ like diffusion? Aim: To plan and carry out an investigation to show the relationship between volume/Cm3‚ surface area‚ and diffusion using agar cubes measured in time/s; and to demonstrate‚ using diffusion‚ why the size of cells is limited‚ keeping the room temperature and pressure constant. Hypothesis: I expect to find that when the surface area to volume of a cell reaches a certain level‚ diffusion alone won’t be able to supply the cell materials needed‚ and as single-celled
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squared) Height= 170cm divided by (∏ x 3 squared) Height = 6.01 round of to 6cm Allowing 1 extra cm for room Top and bottom of cylinder = 6cm + 1cm = 7cm Height= 6cm + 1cm = 7cm Total surface Area= area of base + area of top + Area of circle = (∏r squared) + (∏r squared) +( ∏ x Diameter x height) = (∏ x 3.5 squared) +(∏ x 3.5 squared) +(∏ x7x7) = 230.90cm cubed 1b The net
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Sculpting the Earth’s Surface Paper Sculpting the Earth’s Surface Paper GLG 101 4/6/2012 The Ganges River Basin‚ along with its tributaries travel amongst three different countries. One of these includes the southern region of Bangladesh. The main source of freshwater in Bangladesh comes from the Ganges River. Water and soil pollution is now one of the major problems occurring in Bangladesh and the Ganges River Basin. It has been an ongoing problem for many years so it is not like it
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vivid and sweet memory of the time she spent in the ponds. There‚ she lie down her stomach and watched into the water learning the natures ’ secrets from Matt. “Her braids bob up and down in the water‚ making tiny ripples which tremble out across the surface of the pond. She is “completely absorbed” (Lawson p.5). In addition‚ the pond times Kate spent
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able to do the following. • • Explain the use of the surface heat transfer coefficient. • Explain the use of the overall heat transfer coefficient. • Combine convection and conduction theory to solve problems involving flat‚ cylindrical and spherical surfaces. • Explain the basic theory behind radiated heat transfer. • Explain the affect of the emissivity and shape of the surface. • Calculate effective surface heat transfer coefficient. • (c) D. J. Dunn Explain
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The Aspire of Importing and Exporting _______________ gave this class a chance to help them figure out which floor matting will help a cargo box stop from moving. One factor that is used is friction. Friction happens when two surfaces rub against each other and may cause heat. Also there are four types of friction which are static‚ sliding‚ rolling‚ and fluid friction. The company needs the class to find out what type of flooring is best to use to stop a cargo box from moving. They have game
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modifying the fiber surface properties. In this paper‚ the different chemical modifications on natural fibers for use in natural fiber-reinforced composites are reviewed. Chemical treatments including alkali‚ silane‚ acetylation‚ benzoylation‚ acrylation‚ maleated coupling agents‚ isocyanates‚ permanganate and others are discussed. The chemical treatment of fiber aimed at improving the adhesion between the fiber surface and the polymer matrix may not only modify the fiber surface but also increase
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KENYATTA UNIVERSITY SCHOOL OF PURE AND APPLIED SCIENCES DEPARTMENT OF GEOGRAPHY STUDY ON INFILTRATION AND SOIL TEXTURE UNDER BANANA AND MAIZE LAND USE SYSTEMS IN GATUNDU CATCHMENT‚ KIAMBU COUNTY‚KENYA KAKAIRE JOEL I56EA/20023/2012 ICEDUNA MARION I56EA/20021/2012 MWM714: FIELD MAPPING AND LABORATORY TECHQNIUES FIELD REPORT COURSE INSTRUCTOR: DR. MAKOKHA GEORGE TABLE OF CONTENTS CONTENTS PAGES 1.0 Introduction ...............................................................
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piece must be kept the same in each experiment primarily because they affect the surface area of the piece‚ and varying surface area could have a great effect on the rate of osmosis. This is because in an experiment where the potato chip has a large surface area‚ there is a larger area of partially permeable membrane and therefore more opportunity for water particles to pass through. I will keep the surface area the same by keeping the mass and length of the potato piece the same in each
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