decreased in mass‚ (A2‚ B2‚ C2‚ D2‚ E2‚ and F2)‚ have had the opposite reaction occur. Diffusion and osmosis has moved water out of the cell‚ causing a decrease in mass. This is due to the dialysis cell containing a hypotonic solution as its environment at which it was submerged is hypertonic. This then causes the cell to shrink in mass. Due to the different data shown in Graph #1 and Graph #2‚ we know that the cells and environments contained different concentration gradients because not all data is
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concluded that the osmolarity of the potato was about 0.4M since the weight of the potato decreased by about -1.3%‚ which was the closest value to the initial weight of the potato tuber. We also found that the potato was hypertonic to sucrose solutions of 0.0-0.3M and hypotonic to 0.5-0.6M. Introduction: Diffusion and osmosis are two types of passive transport. Diffusion is a random movement of molecules from an area of high concentration to an area of low concentration. According to the book
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- Molecules move from hypertonic to hypotonic‚ until it reaches an isotonic state (or equilibrium). At that point‚ molecules will move equally across the membrane. 10-1 Cell Growth surface-area-to-volume-ratio: the ratio of surface area to volume cell division: division of a cell (also called
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Ethylene Glycol‚ each measured at a different temperature(C)‚ and timed to see how many seconds hemolysis would take. Results of this lab do support the proposed hypotheses‚ as hemolysis did occur to the red blood cells introduced to both hypotonic solutions of NaCl‚ and the rate at which hemolysis took place was much more rapid as the temperature was increased. The solution with the most rapid hemolysis time was 0.18% NaCl and following close behind was the 0.45% NaCl. This makes sense because
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concentration‚ it means both of these solutions are become isotonic. When sometimes the solutions have the different solute concentrations‚ there are two names for them we used to call those situations. The first one is hypertonic‚ which is for the area or solution that has the higher solute concentration. On the other hand‚ another one is called hypotonic‚ that means for the area or the solution with the lower solute concentration. When the hypotonic solution has a higher level of solute than the water
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substances to move across a membrane concentration gradient a gradual change in the concentration of solutes in a solution as a function of distance through a solution. crenation A process resulting from osmosis in which red blood cells‚ in a hypertonic solution‚ undergo shrinkage and acquire differentially permeable some substances pass through freely while other do not-small uncharged molecules pass through the cell membrane following their concentration gradient diffusion movement of molecules
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hypothesized that osmosis will occur when there is an uneven distribution of solute in a solvent. The more abundant the solute is in solvent‚ the higher the rate of osmosis through the diffusion gradient forming a hypertonic or hypotonic solution. Solvent with equal or no solute forms an isotonic solution. Throughout this lab‚ data was collected and compiled to analyze these effects across selectively permeable membranes. The results indicated that the water molecules indeed move from high concentration
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NaCl‚ an influx of water occurs: the cells swell‚ the integrity of their membranes is disrupted‚ allowing the escape of their hemoglobin in the process of hemolysis because the solution is hypotonic. When 0.7% NaCl was added to the bloods‚ there is no net influx or efflux of water because the solution is isotonic. When 0.16 M NaCl was added to the bloods‚ the cells lose their normal biconcave shape‚ undergoing
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1. Different methods to administer IV drugs include: 1. As mixtures within large volumes of IV fluids 2. By injection of a bolus or small volume of medication through an existing IV line or intermittent venous access 3. By “piggyback” infusion of a solution containing the prescribed medication and a small volume of IV fluid through an existing line 2. An IV bolus is when you administer a small amount of fluid directly into the systemic circulation in order to deliver the medication. 3. Volume
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CHAPTER CHEICAL BASIS OF LIFE OUTLINE The human body is composed of chemicals. Chemistry describes the composition of substances & how chemicals react with each other. STRUCTURE OF MATTER ELEMENTS are composed of atoms‚ which are the smallest unit of element MATTER is composed of elements ATOMIC STRUCTURE • A complete atom is electrically neutral • Atom consists of elements‚ protons‚ & neutrons • Electrons are negative charge & • Neutrons are uncharged( neutral) • Atomic number is equal
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