1. What is the relationship between rate of ion exchange and surface-to-volume ratio? - As the surface-to-volume (SA:V) decreases the rate of ion exchange will also decrease. 2. Why is it important for a cell to have a large surface-to-volume ratio? - If the SA:V is too small then then rate of ion exchange will decrease‚ if this rate of ion exchange is too low then the cell will no longer be viable. 3. Which is more efficient at exchanging materials‚ a small or a large cell? EXPLAIN
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Additional Mathematics Project Work 2 Written By : Nurul Hazira Syaza Abas I/C : 940602-01-6676 Angka Giliran : School : SMK Kangkar Pulai Copyright 2011 ©. Hazira Syaza‚ All Right Reserve Numb | Title | Page | 1 | Acknowledge | 1 | 2 | Objective | 2 | 3 | Introduction Part I | 3 | 4 | Mathematics In Cake Baking And Cake Decorating | 4 5 | 5 | Part II | 6 14 | 6 | Part III | 15 17 | 7 | Further Exploration | 18 21 | 8 | Reflection | 22 23 | 9 | Conclusion | 24
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progresses through varied methods of error trapping. The final equation (below) has an error of 15 percent‚ a reduction of eight percent over the benchmark. process cost = K ( APave ) EFcom n Where K and n are constants‚ A is the cross-sectional area of the forging‚ Pave is the average pressure needed to produce the forging using the “slab” method of calculation‚ E is an escalation factor ($102.57 in this study)‚ and Fcom is a forging shape complexity multiplier. Approved: Bhavin Mehta Associate
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Surface Marking of the Lungs The apex of the lung extends upwards for one to two inches above the anterior extremity of the first rib‚ and is indicated by a curved line drawn from the upper border of the sterno-clavicular articulation to the junction of the inner and middle thirds of the clavicle‚ the highest part of the curve being from 1/2 inch to 1 1/2 inches above the clavicle. The apex of the right lung is 1/2 inch higher than that of the left. The subclavian artery lies on the cervical pleura covering
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the area of a square with a side length of 4 inches....C Find the volume of concrete needed to make a circular patio that has a radius of 24 feet and is 8 feet thick. Use 3.14 for pi. If necessary‚ round the answer to the nearest cubic foot....C B Write the equation of the circle with the given center and radius. Then graph the circle. center: (–1‚ –3) radius: 6.....B A The volumes of 2 similar solids are 27 and 125 The surface area of the larger solid is 250 What is the surface area
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Scheduled Areas and Tribal Areas : Scheduled Tribes live in contiguous areas unlike other communities. It is‚ therefore‚ much simpler to have an area-approach for development activities and also regulatory provisions to protect their interests. In order to protect the interests of Scheduled Tribes with regard to land alienation and other social factors‚ provisions of ‘‘Fifth Schedule" and ‘‘Sixth Schedule"have been enshrined in the Constitution. The Fifth Schedule under Article 244(1) of Constitution
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INTERNATIONAL BACCALAUREATE BIOLOGY INTERNAL ASSESMENT DATA COLLECTION AND PROCESSING CONCLUSION AND EVALUATION RELATIONSHIP BETWEEN SURFACE AREA AND THE VOLUME OF A CELL‚ HOW IT AFFECTS THE RATE OF DIFFUSION Nazirul Ibrahim 04.10.2011 DATA COLLECTION AND PROCESSING We have determined the following variables: * dV- the time for the color indicator phenolphthalein to reach the center of the cube (diffusion) * iV- the size of the cube * cV- the amount of Sodium
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4. If the length of a box is reduced to one-third of its original value and the width and height are doubled‚ by what factor has the volume changed? A. 2/3 B.1 C. 4/3 D. 3/2 E. depends on relative proportion of length to height and width 5. If the area of a circle is found to be half of its original value after the radius is multiplied by a certain factor‚ what was the factor used? A. 1/ (2π) B. ½ C. √2 D.1√2 E. ¼ 6. In terms of the original diameter d‚ what new diameter will result in a new spherical
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following will be kept constant meter ruler‚ stopwatch‚ and filter paper. Hypothesis: ‘If the sector size is the increase‚ then the terminal velocity will decrease.’ The reason is that if the sector size is bigger‚ the surface area of the cone will become smaller. If the surface area is smaller‚ than the friction will be less‚ so there will be less terminal velocity. Variables Table: Variables | How it is controlled | Values Used *Filter
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Khoo Ee Sin. SOLUTION : Let the height of the water at time t be x: Volume‚ V=πx‚ r=radius of the water surface Tan 45⁰= therefore r=x V=π =π Given =- = x =π =-π(0.36 x =-0.39x1m When x=0.12 =π (0.12 Therefore:-0.39x1=π (0.12 =-7.5x1Therefore the water sinking rate is -7.5x1m QUESTION 3 : The radius of the sphere is r‚ the area of the sphere and it’s volume is π. If‚ when the r of the sphere is 21m‚ it is
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