preparing for the next step‚ place the dialysis tubing in cup 1 and let it soak for about 5 minutes. Use the “DW” pipet to add 4 mL of distilled water to the graduated cylinder. Add 2 mL of starch solution and 2 mL of 20% glucose solution to cup 2 and mix thoroughly with the glass rod. Next‚ cut 2 rubber bands in one place and set aside. By this time‚ the dialysis tubing should be ready to be removed from cup 1. Set cup 1 aside for future use. “Fold the dialysis tubing about 1 ½ cm from the end. Tie
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6 M‚ 0.8 M‚ and 1.0 M. Then we obtained six pieces of dialysis tubing from the beaker of water and tied a knot in one end of the tubing. Afteer‚ we opened one piece of dialysis and poured 25 ml of distilled water into the tubing and then tied of the other end securely leaving room for expansion. Then blotted the tube dry and placed it in the cup labeled “water”. Then we repeated the same process witht eh remaining five pieces of dialysis tubing‚ adding a different sucrose solution to each bag:
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experiment‚ the weight of the beaker/dialysis tubing changed and the only logical explanation was that diffusion of water had occurred. Osmosis is the diffusion of water. Depending on which was heavier (the beaker or the dialysis tubing) after the experiment was performed‚ the direction of water diffusion was apparent. If the beaker was heavier‚ then that implies that the water diffused from the dialysis tubing to the beaker. In contrast to this process‚ if the dialysis tubing were heavier after the experiment
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important ones. You need a cup to put 150mL of distilled water in cup number one. Then you soak the dialysis tubing in this cup for five minutes. Then you add in the graduated cylinder‚ 4mL of distilled water‚ 2 mL of starch solution‚ and 2 mL of the glucose solution‚ then pour it into cup number two. Then use the glass stirring rod to stir the solution in cup two. Then remove the dialysis tubing from cup one‚ set the cup aside for later‚ tie up one end tightly. Then test the tubing with distilled
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permeable membrane. There were two parts to the experiment‚ the dialysis tubing lab and the potato lab. In the first experiment‚ the dialysis tubing acted as a semi-permeable membrane. A semi-permeable membrane is a membrane that allows certain substances to pass through. In this experiment‚ several variables‚ including glucose‚ starch‚ and iodine potassium iodide were tested for permeability through the dialysis tubing. In the second experiment‚ several potato tuber cylinders
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beaker. Wait 30 minutes to see the change of color in the bag or in the beaker. Finally‚ record the final color of the bag and beaker. Finally‚ test the liquid in the bag and beaker for any presence of glucose. Exercise 1B: First‚ soak six 30-cm of dialysis tubing in water. Then‚ take each one out and tie a knot on one end of each piece to make a bag. Pour 25 mL of a different solution (distilled water‚ 0.2 M sucrose‚ 0.4 M sucrose‚ 0.6 M sucrose‚ 0.8 M sucrose‚ and 1.0 M sucrose) into separate bags
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their individual solute to a lower concentration diffusing threw pores in the dialysis bag. The experiment sought to find out which solutes would diffuse threw the pores of the dialysis bag‚ whether in or out of the bag. The pores and walls of the dialysis bag acted as a permeable membrane‚ like the one found in cells‚ and was the regulator of diffusion for the solutes. Studying the movement of solutes threw the dialysis bag helps better understand diffusion of a cell membrane‚ and the means and solutes
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infection: (i) sunburn‚ (ii) skin rash under adhesive tape‚ (iii) common cold‚ (iv) red‚ swollen eye with purulent exudate. 6. How does the presence of thick‚ cloudy‚ yellowish fluid in the peritoneal cavity differ from the normal state? 7. If a large volume of fluid has shifted from the blood into the peritoneal cavity‚ how would this affect blood volume and hematocrit? 8. Explain how acute inflammation impairs movement of a joint. 9. Explain two mechanisms used to increase body temperature as
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of the buttocks). Patient is in jackknife position. Skin is prepped from outside‚ in. Rectal Polypectomy- The removal of rectal polyps. Patient is in the jackknife position‚ Prepped from inside out. Spigeliain Herniorrhaphy- A protrusion of a peritoneal sac‚ organ‚ or preperitoneal fat through a congenital or acquired defect
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lining of the lung (the pleura). Over many years they can cause mesothelioma or other lung diseases to develop. Peritoneal mesothelioma Asbestos fibers can also be swallowed‚ and some of the fibers can stick in the digestive system. They can then move into the outer lining of the abdomen (the peritoneum). Here‚ they cause swelling and thickening of the lining and can lead to peritoneal mesothelioma. Exposure to asbestos People most likely to have been exposed to asbestos at work include: • joiners
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