prokaryotic. Prokaryotic cells are usually unicellular‚ while eukaryotic cells can either exist as a single celled organism or be found in multicellular organisms. The unicellular and multicellular organisms are linked to cell size and surface area to volume ratio. The experiment for cell size and diffusion was set to see how and how much water can go to the cells. This movement of water is called Osmosis. Osmosis is the movement of water molecules from an area of low concentration (lots of water) to
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Are you more creatively thinking or logical thinking? A lot of people consider themselves to be mostly creatively thinking. I for example‚ personally considered myself more logical thinking. But after research‚ it is noted that while there are advantages and disadvantages to both types of thinking‚ they both can be learned. However‚ without learning them‚ our brain first prepares a style of thinking over the other. Some people’s brains prefer thinking more logically than creatively. Others find it
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type of application scanning or imaging human brain activity used a different approach. A study and experiment had been conducted to real subject in obtaining the real time result and brain mapping of the activity in human brain. Electric Capacitance Volume Tomography (ECVT) were used to measure electrical signals generated from human brain activity and reconstruct volumetric image of the brain signal in real time. ECVT is a method for determination of the dielectric permittivity distribution in the
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was a comparison between accuracy and precision of densities measured by volume. Mass measurements are often used units in the metric system. Volume can be examined a borrowed unit. The volume measurements were made in mL. Every measurement had a level of hesitancy affiliated with it. The experiment could feel uncertain from the object used for measurement and from the accuracy of the person doing the measuring of the volume. Because of this uncertainty‚ the experiment must be repeated for better
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In Parts A and C‚ the relationship between surface area and volume was investigated. Plasticine was formed into a cube and a sphere; both shapes were cut in half. It was found that plasticine volume should not vary‚ two halves have a greater surface area than a whole‚ and cubes have a greater surface area than spheres of the same volume. In Part B‚ the relationship between diffusion and surface area to volume ratio was investigated. Three agar-phenolphthalein-sodium hydroxide cubes of different sizes
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Surface area / Volume ratio Experiment Introduction: The surface area to volume ratio in living organisms is very important. Nutrients and oxygen need to diffuse through the cell membrane and into the cells. Most cells are no longer than 1mm in diameter because small cells enable nutrients and oxygen to diffuse into the cell quickly and allow waste to diffuse out of the cell quickly. If the cells were any bigger than this then it would take too long for the nutrients and oxygen to diffuse into
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Applications of Differentiation 1. If a line y = x + 1 is a tangent to the curve y2= 4x ‚find the point the of contact ? 2. Find the point on the curve y = 2x2– 6x – 4 at which the tangent is parallel to the x – axis 3. Find the slope of tangent for y = tan x + sec x at x = π/4 4. Show that the function f(x) == x3– 6x2 +12x -99 is increasing for all x. 5. Find a‚ for which f(x) = a(x+sinx)+a is increasing 6. Find the intervals in which the function f ( x ) = x3 - 6x2 + 9x + 15 is
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Respiratory Rate and Tidal Volume [pic] The total amount of air moved in and out of the lungs each minute (pulmonary ventilation) depends upon 2 factors: size of each breath (tidal volume) and number of breaths/minute (respiratory rate). For example‚ suppose your tidal volume is 500 mL (0.5 liters) and you breathe 15 times/minute. Your pulmonary ventilation = 15 breaths/min x 0.5 L/breath = 7.5 L/min. Pulmonary Ventilation = (Respiratory rate; breaths per minute) x Pulmonary Ventilation
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Wuthering heights summary Volume 1 chapter 1 : • It is the year 1801. While staying in Yorkshire‚ Mr Lockwood pays his landlord Heathcliff ‚ a somewhat unwelcome visit in order to introduce himself. • We are introduced to Lockwood‚ Heathcliff ‚ heathcliff’s servant Joseph and a female servant. • The property Wuthering Heights is described. Volume 1 Chapter 2: • Lockwood repeats his visit to the Heights and meets Hareton and Cathy Heathcliff. • Lockwood mistakes a heap of dead rabbits for
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In the express mail industry shipment volume was increasing quickly‚ but prices were falling. For this reason total revenues of the industry had been growing by only 10-15% each year and were expected to grow about 10% for the next five to ten years. The customer base of the industry was broadening due to acceleration in the pace of business. However‚ customers of this industry were not very loyal‚ even though discounts based on volume did encourage customers to focus on one carrier. Customers chose
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