BIOLOGY DB015 (ASSIGNMENT) PASSIVE AND ACTIVE TRANSPORT GROUP MEMBERS : ABDUL MUIN BIN ABDUL MALIK (MS1311580012) AIMAN HAKIM BIN A.MANAP (MS1311580006) MUHAMMAD AMIN BIN MAT SAUPI (MS MUHAMMAD FARIZUL BIN AMRAN (MS LECTURER : MISS AFIQAH BT MOHAMED Q INTRODUCTION The various organelles and structure within a cell require a variety of subtances in order to carry out their functions. In turn‚ they form products; some useful and some not. Most of these substances must pass in and
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of the bag is hypotonic to the inside of the bag‚ which is hypertonic‚ the water’s net movement will flow into the bag. Also since the dialysis bag’s weight heavily depends on the amount of water‚ the mass will go up when water is gained. The class average for amount of mass gained was 22.55%. A bag that lost mass was the bag with 0% concentration‚ which means it has 100% water. The outside of the bag has 10.57% sucrose and 89.43% water. This makes the outside of the bag hypertonic to the inside
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Effect of Osmosis on Egg Introduction: The purpose of this lab was to test the effects of hypertonic‚ isotonic‚ and hypotonic environments on the weight of a shell-less egg. We tested the weight of the egg after thirty minutes in water as well as corn syrup. I hypothesized that when the egg was placed in water‚ it would swell and gain weight because it was in a hypotonic environment. That hypothesis was correct as the egg grew slightly and the weight when up. I also hypothesised that when the egg
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for example‚ are placed in contact with an isotonic solution‚ they will neither shrink nor swell. However‚ if the solution is hypertonic‚ the cells will lose water and shrink (plasmolyze). A real life example of such an event occurring is the consumption of saltwater. Saltwater from the ocean is hypertonic to the cells of the human body; the drinking of ocean water dehydrates body tissues instead of quenching ones thirst. If the solution is hypotonic‚ for example deionised water‚ the cells will
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as salt is present in low concentrations to an area in which the solute is present in high concentrations. There are three types of osmosis: hypertonic is when there is high concentration and the cell has no water inside it (shrunk)‚ hypotonic is when there is low concentration and the cell has swelled up or in other words has a lot of water inside it‚ isotonic is when the water comes in and out of the cell and stays the same shape. All the carrots we put in the salt solution was from the same carrot
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solution and were soaked in solutions of different concentrations. The diffusion of water across a semi-permeable membrane is called osmosis. When water diffuses‚ the water molecules move from a hypotonic environment to a hypertonic environment. Hypotonic means less concentrated than another solution. Hypertonic means more concentrated than another solution. If two solutions have equal concentration‚ they are said to be istonic Hypothesis: If three 8 in. sections of dialysis tubing are filled with
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Title: Osmosis in quails’ egg Aim: To observe the effect of different concentrations of sodium chloride on a de-shelled quail’s egg To explain the effects in terms of osmosis Research Questions: Does the different concentrations of sodium chloride on a de-shelled quail’s egg effect the final mass of quail’s eggs that is measured by using electronic weighing balance? Introduction: “If a cell is to perform its functions‚ it must maintain a steady state in the midst of an ever-changing
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experimenting: isotonic‚ hypertonic‚ and hypotonic. An isotonic solution is when the solute concentration inside a system is equivalent to the solute concentration outside of a system‚ thus resulting in no net change of diffusion. In a hypertonic solution‚ the solute concentration outside of a system is larger than the solute concentration within a system‚ so water diffuses out of the system to attempt to even out the ratio disparity; this results in the system shrinking in mass. In a hypotonic solution
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placed in different solutions: i. hypotonic solution : A cell placed in it will gain water. ii. hypertonic solution: A cell placed in it will lose water: Also known as plasmolysis. iii. isotonic solution: A cell placed in it will neither gain nor lose water 10) Cells of Plants‚ fungi & bacteria: Contain both plasma membrane & cell wall. Cell wall is rigid‚ non-living & outer most covering‚ composed mainly of cellulose. 11) When placed in hypertonic solution‚ a living plant cell shows
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| |concentration of solutes compared to another solution |e. hypotonic | | |f. isotonic | |__A__ the movement of molecules from an area of higher |g. hypertonic | |concentration to an area of lower concentration as a result of
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