_ _____Block:______ Diffusion In Agar Cubes Is Bigger Better? OR Is Smaller Smarter? Adapted from Flinn Scientific Publication No. 10110 Introduction: Diffusion is one of the very important processes by which substances such as nutrients‚ water‚ oxygen‚ and cellular wasted are transported between living cells and their environment. This activity will help you explore the relationship between diffusion and cell size by experimenting with model “cells.” In this experiment‚ you
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Why is diffusion of innovation and technology important? When I think of diffusion of innovation and technology‚ I think of evolution or how a product‚ idea or theory goes from a thought in someone’s mind to an actual working process and then through time develops into better products to meet society’s needs and wants. Many times certain societies have a special trait‚ characteristic or ability that enables them to be great at certain types of technology or maybe they produce certain products that
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Traveled Speed of Diffusion Blue Dye 793g 20.00mm 600mm/hr Red Dye 496g 45.00mm 1350mm/hr Aloe Vera Gel Molecular Weight Distance Traveled Speed of Diffusion Blue Dye 793g 15mm 450mm/hr Red Dye 496g 25mm 750mm/hr 1. The red dye diffused faster in both materials. 2. Yes‚ since the red dye is lighter it diffuses faster. 3. The rate of diffusion does change after time. The longer the dye sits the less it spreads in the liquid. 4. Cells must stay at a distance
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concentration is called Diffusion. Osmosis is the diffusion of water through a selectively permeable membrane from an area with greater concentration of water to an area with less concentration. A Hypertonic Solution is a solution of a higher concentration of solutes and a smaller concentration of water molecules than another solution. However‚ an Isotonic Solution is a solution that contains an equal concentration of solutes and of water molecules‚ the same as another solution. A solution that contains a
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the simplest or chemical level and culminating with the highest level-the whole organism Chemical level – atoms (and their parts)‚ and combinations of atoms called molecures Cellular level – cells are the basic structural and functional units of life. Tissue level – tissue are groups of similar cells (and their intercellular material)‚ which work together toward a specific function. Examples include blood‚ muscle‚ nerves‚ ets mostly a common embryo group. Organ level – a structure composed
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* Solutions for Chapter 2 * Corporate Governance Review Questions: 2-1. Corporate governance is defined as: “a process by which the owners and creditors of an organization exert control and require accountability for the resources entrusted to the organization. The owners (stockholders) elect a board of directors to provide oversight of the organization’s activities and accountability back to its stakeholders.” The key players in corporate governance are the stockholders
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Cultural Diffusion and its Influence on Europe and Sub Saharan Africa Both Europe and Sub Saharan Africa was and still is a melting pot consisted of a blend of races and cultures that has integrated into a cohesive whole. Take The Melting Pot restaurant as an example; The rich blend of the chocolate sauces can resemble a specific culture such as strawberry‚ white‚ dark‚ raspberry‚ etcetera‚ but when they are mixed together‚ the melting pot creates a swirl that symbolizes the blending of one culture
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Part A: Diffusion on a liquid in a liquid. I did an experiment with three different glasses of tap water from the faucet. All three cups measured the same which happened to be 13 cm from the top of the cup to the bottom of the cup. I let the water settle‚ and sit for about an hour so the temperature was the same for all three cups. I then placed one drop of food coloring into the first glass and waited for the coloring to reach the bottom. I calculated 93 seconds. I then went to the second glass
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of atoms and molecules. Diffusion Diffusion‚ also called molecular diffusion‚ is the process by which molecules of a given substance move from an area of relatively high concentration to an area of lower concentration. When the molecules have diffused so that they are in a uniform concentration‚ this state is called equilibrium. This phenomenon plays a key role in many disciplines of biology‚ physics‚ and chemistry. It is closely related to the way in which cells take up nutrients‚ thus life
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Experiment #1 Date: September 13‚ 2011 Title: Diffusion in Gases I Aim: To observe the diffusion of bromine Apparatus and Materials: Glass tube‚ bromine‚ fume chamber Diagram: Procedure: -Liquid bromine was placed in a jar and covered Observations: When first placed in the jar the original color of bromine was red-brown. As it began to diffuse its color changed from dark brown to a lighter brown until it becomes a yellow-like orange color. As it was diffusing liquid bromine changes its state
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