gradient mean? Concentration that exists between two different areas 3. A solution of 1M glucose is separated by a selectively permeable membrane from a solution of 0.2M fructose and 0.7M sucrose. The membrane is not permeable to the sugar molecules. Indicate which side is initially hypertonic and which is hypotonic. Show‚ using an arrow‚ the direction
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Pillai’s Institute of Management Studies and Research Project Report On “Dabur India Limited” Submitted To: Prof.Momita mam BY: 29-Rashmi Gawand 37-Priyanka Jagtap DABUR INDIA LIMITED Dabur India LimitedDabur India Ltd. is the fourth largest FMCG Company in India. Dabur deals in Health care and Personal care products. Today‚ Dabur has a turnover of Rs.1899.57 crores. The market
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The cell swelled because of the increased amount of distilled water but the cell wall kept the same rectangular shape. See diagram 1 for sketch. The distilled water moved from outside the cell wall into the cell across the permeable cell wall‚ through the selectively permeable cell membrane into the vacuoles by osmosis in response to differences in water potential. The water molecules moved down concentration gradient from an area of higher to lower water potential. The water absorption caused the
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volume ratio will experience the greatest weight change‚ because more water can move by osmosis across the potato cell’s semi permeable membrane. 2) If potato pieces are immersed in various salt solutions‚ then the pieces immersed in the most concentrated solution will experience he greatest weight change‚ because more water must pass across the potato cells semi permeable membrane by osmosis to achieve an equilibrium. The results from testing these hypotheses did not support either and were shown
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result of their random movement Until an equilibrium is reached. What are partial permeable membranes? Not all particles can diffuse through cell surface membranes. Sometimes the particles are too big or they have the wrong electrical charge on them or the chemical composition of the membrane prevents them passing across. What does a diagram of a partially permeable membrane look like when it is permeable to glucose and water but impermeable to protein? What
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The first lab will investigate the movement of glucose and starch across a selectively permeable membrane through a process of diffusion. The movement of a solute through this membrane is called dialysis . Diffusion is a form of passive transport. It is the movement of molecules from areas of higher concentration to those of lower concentration‚ until there is an even concentration. This movement is random because it is a result of kinetic energy. Diffusion is a slow process‚ but there are many factors
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Hemoglobin and its importance Oxygen is the most essential element required to sustain human life. If an adequate supply of oxygen is not circulated throughout the body to vital organs and tissues‚ brain damage‚ organ failure and death can result. Hemoglobin (Hb)‚ the iron-containing respiratory protein in red blood cells‚ is responsible for transporting oxygen from the lungs to the rest of the body. Measured in grams per deciliter (g/dL)‚ hemoglobin levels indicate the blood’s ability to carry
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reactions is inserting vesicles containing water-permeable channels (aquaporin’s) into the cell surface membrane‚ thus making walls more permeable to water. When ADH is increased in the blood flow‚ more water-permeable channels are inserted‚ allowing more water to be reabsorbed by osmosis into the blood stream. When this happens‚ less urine‚ of a much lowered water potential‚ passes out of the body. This suggests that due to the cell walls being more permeable to water and also osmosis reabsorbing the water
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could hear hilarious laughter while I was consumed by bitterness and anger. The joke was at my expense. As I seethed in anger and hurled verbal abuses at the top of my voice‚ Seng Chye cowered in silence. His face has turned as red as a beetroot and he had guilt written all over his face. The pandemonium that resulted was enough to catch the attention of the discipline master who stalked into the class. Seng Chye and I were summoned to his room. Each of us took turns to relate the
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Membrane Potential 1. Record the intracellular and extracellular concentrations of the following ions (mM/L): Intracellular Extracellular Sodium (Na+) Potassium (K+) Chloride (Cl–) 2. Excitable cells‚ like neurons‚ are more permeable to ___________ than to ___________. 3. How would the following alterations affect the membrane permeability to K+? Use arrows to indicate the change in permeability. a. An increase in the number of passive K+ channels ___________ b. Opening
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