Diffusion in Cells Isabel Zak Question: How does the size of a cell affect the distribution of chemicals throughout the cell? Hypothesis: The larger the cell is‚ the more difficult it will be for the chemicals to reach the centre of the cell‚ and diffuse throughout it. This is because there will be a higher surface-area to volume ratio in the larger cells‚ making the centre of the cells further away from the surface. Therefore‚ when dipped in sodium hydroxide‚ the larger cells will not
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Purpose: The purpose of this lab is to test the effects of osmosis on eggs in hypertonic solutions and hypotonic solutions. Hypothesis: If the corn syrup is a hypertonic solution‚ then the egg’s size will shrink. If the water is a hypotonic solution‚ then the egg will swell. Materials: Styrofoam cups (2 per group) Styrofoam cups to weigh down egg (2) Balance Paper towels Vinegar (enough to cover egg) Distilled water Corn syrup Fresh eggs (2 per group) Procedure: Day
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Thomas Graham studied the behavior of the diffusion of gases of unequal densities when placed in contact with each other‚ using air as his control. He wanted to numerically prove how the diffusion of the gas volumes was inversely proportional to the value of the density of the gas‚ under constant temperature and pressure. The significance of this experiment was that in led to a reevaluation of the concept of the movement of matter‚ realizing that diffusion dealt with small immeasurable elements of
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Replacement for Maize Mohammed‚ L. and ⃰Y. Garba Department of Animal Science‚ Faculty of Agriculture‚ Bayero University‚ PMB 3011‚ Kano. Corresponding author email: lukman10000@gmail.com ⃰ Centre for Dryland Agriculture Bayero Unoversity Kano. Abstract Serum haematology and biochemical profile of weaner rabbits fed graded levels of yam peels replacing maize were evaluated. The experiment which lasted fifty-six days using 15 weaner rabbits was laid in a randomized complete block design using five
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Investigating the effect of different concentrations of glucose on the percent change in mass of Gummy bears according to their respective colours In this experiment osmosis is the main process taking place. Osmosis is the diffusion of water molecules of a solvent which pass through a semi permeable layer and in most cases are due to a concentration gradient meaning that the water molecules travel from an area of low concentration to one of higher concentration. In this investigation‚ gummy bears
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Lab Report DIFFUSION AND THE EFFECT OF AMYLASE. Aim: We will interpret and explain the activity of an enzyme added to a solution. We will analyze reactions in different pH ranges. The starch solution will appear blue when mixed with iodine. But after mixing the enzyme amylase to the starch‚ the starches are broken down into simple sugars. Now‚ when the iodine is added‚ no color change exist. Instruments and materials used: 1.) Dialysis bags x2 2.)
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Diffusion of Buddhism and Christianity Siddhartha Gautama‚ better known simply as Buddha‚ first followed the Hindu religion but then later realized that the cast system from Hindu was immoral and decided to leave his earthly possessions to find what he believed to be nirvana‚ which resulted in the creation of Buddhism. Christianity originated from the teachings of Jesus Christ‚ who created a religion that came from Judaism which attracted all women and minorities and was later spread mainly by
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Activity One: 1. The two major variables that affect the rate of diffusion: a. The composition of the lipid bilayer (eg. more cholesterol‚ less permeability to polar substances) b. The structure of the molecule undergoing diffusion (eg. steric conformation‚ size‚ polarity‚ amount and strength of hydrogen bonding) 2. Urea was not able to diffuse through the 20 MWCO because the pores of the membrane were too small for the urea to pass through. The molecular weight of urea is 60.06 g/mol‚ over
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Soccer Specific Aerobic Endurance Training Soccer Specific Aerobic Endurance Training Purpose The purpose of the is study was to design a dribbling track and a playing session that fulfills the criterion of effective aerobic interval training‚ and determine whether heart rate is a valid measure of work intensity in soccer specific endurance training (Hoff‚ Wisloff‚ Engen‚ Helgerud‚ 2002‚ p.218) Methods 1. Subjects: Six Norwegian athletes who were volunteer first division players whose
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VOIP OVERVIEW This particular project is a solution developed to communicate between the users across worldwide through Internet. A message or information can be sent via many medias such as it can be telephonic‚ telegrams‚ fax etc to the recipient. Each such information requires a high level of security. To maintain such security and smooth completion of any communication it requires more time and human effort in manual systems. The entire process has been automated using JAVA
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