Osmosis in Potato Cells Interpretation My results show what I predicted would happen. My prediction was that as the concentration of sucrose increased the amount of water moving in or out of the potato would change. A low concentration of sucrose solution would make the potato increase in length and mass (become turgid). A high concentration of sucrose solution would make the potato shrink (plasmolysed) We can see this occurred‚ as at 0.1mol of sucrose solution the potato’s size increased by an
Premium Osmosis Concentration
Osmosis Investigation We are trying to find out what the concentration of the solutions is inside the vacuole of a potato cell. We will investigate how the mass of the potato chips change in different sucrose solution concentrations. We will use osmosis to do this. I will be measuring and controlling many different variables‚ these include; - The dependent Variable Weight of potato chip Independent Variable Concentration of sucrose Control Variables consist of; - 1. Temperature
Premium Concentration Potato Area
growth of the common wheat (Triticum aestivum) seeds. The sucrose solution (sucrose mixed with water) added to the soil makes high concentration outside the common wheat cells and the common wheat cells become an area of low concentration. Because the osmosis is reversed‚ the water molecules from the common wheat cells starts to flow to an area of high concentration‚ in this case into the soil. The water is lost from the common wheat cells and this reduces the amount of water available for the common wheat
Premium Genetically modified food Genetically modified organism DNA
Introduction: Osmosis is the diffusion of water from a higher concentration to a lower one through a semi-permeable membrane and occurs in the cells of organisms. It is affected by the addition of solute which would lower the water potential‚ making water potential and solute concentration inversely related. The concept of osmosis loosely described is that the presence of more solute outside the cell means the presence of less solvent (or water molecules in this case) and vice versa; the goal of osmosis is
Premium Concentration Chemistry
Bibliography: Diffusion and osmosis. (n.d.). Retrieved from http://hyperphysics.phy-astr.gsu.edu/hbase/kinetic/diffus.html McGraw-Hill. (2006). How osmosis works. Retrieved from http://highered.mcgraw-hill.com/sites/0072495855/student_view0/chapter2/animation__how_osmosis_works.html
Premium Chemistry Sucrose Measurement
BIOLOGY – TRANSPORT ACROSS MEMBRANE define diffusion and describe its role in nutrient uptake and gaseous exchange in plants and humans define osmosis and describe the effects of osmosis on plant and animal tissues define active transport and discuss its importance as an energy-consuming process by which substances are transported against a concentration gradient‚ as in ion uptake by root hairs and uptake of glucose by cells in the villi . A cell is surrounded by a layer of cell surface membrane
Premium Cell wall Osmosis Cell membrane
molecules spread faster and faster. The opposite would be true of colder temperatures. 3. Considering the osmosis lab‚ explain the relationship between fluid volume and osmotic pressure. Answer: Osmotic pressure is the measure of the tendency for osmotic flow to occur. Osmotic flow is from a solvent to a solution. This is the amount of pressure that needs to be applied from the outside to prevent osmosis. Fluid volume might be connected to osmotic pressure as the amount of pressure required to contain
Premium Osmosis Diffusion Molecular diffusion
Biology Essay Amanda Liao 09/05/13 Clean Water In today’s world‚ one of the most basic problems facing our society is the absence of clean water that we use and drink in daily life. The importance of clean water is self-explanatory. In spite of the fact that 70% of the earth’s surface is covered by water‚ there is only 2.53%of fresh water that we can actually use. For the only 2.53% of fresh water‚ some is not safe and clean to use and it is harmful to human body. Polluted water is a big risk to
Premium Water purification Reverse osmosis Water treatment
OSMOSIS Aim To determine the water potential of potato tuber cells. Background knowledge Osmosis is defined as the movement of water molecules from a region of higher water potential to a region of lower water potential through a partially permeable membrane. Osmosis is considered in terms of water potential and solute potential. Water potential is a measure of the kinetic energy of water molecules. Here‚ water molecules are constantly moving in a random fashion. Some of them collides with cell
Premium Osmosis Cell membrane
transport in which it does not have need of an active role for the membrane. Osmosis and dialysis are also occasionally called passive transports because they too do not require an active role for the membrane. Osmosis is movement of water across a semipermeable membrane of low concentration to a solution of high concentration. On the other hand diffusion is movement of molecules from a high concentration to a low concentration. Osmosis is a form of diffusion but a distinction would be that it deals essentially
Premium Osmosis Diffusion Membrane biology