After putting one drop of the hypertonic medium on the slide I noticed a change. It seems as if the chloroplasts have joined together and are inside of a circular figure. The figure is quite big and there are large amounts of them located throughout the walls of the cell. The cytoplasm color still stayed the same at green and this was what I was expecting to occur with a hypertonic medium. You can see how the chloroplasts are even more concentrated and with
Premium Water Chemistry Osmosis
CELLS All living things are made of cells‚ and cells are the smallest units that can be alive. Life on Earth is classified into five kingdoms‚ and they each have their own characteristic kind of cell. However the biggest division is between the cells of the prokaryote kingdom (the bacteria) and those of the other four kingdoms (animals‚ plants‚ fungi and protoctista)‚ which are all eukaryotic cells. Prokaryotic cells are smaller and simpler than eukaryotic cells‚ and do not have a nucleus. Prokaryote
Premium Cell Bacteria Organelle
Chapter 7 Cell Structure and Function Section Review 7-1 1. living things 2. structure; function 3. existing cells 4. nucleus; prokaryotes 5. organelles 6. prokaryotic cell 7. eukaryotic cell 8. The giant amoeba is 5000 times larger than the smallest bacterium. 9. Prokaryotic and eukaryotic cells carry out the functions required for living‚ and both contain cytoplasm as well as cell membranes. Eukaryotic cells contain organelles and have a nucleus‚ whereas prokaryotic cells do not. 10. Eukaryotic;
Premium Cell Bacteria Eukaryote
Lab 5: Osmosis Purpose: The purpose of this lab is to familiarize you with osmosis and‚ specifically‚ what happens to cells when they are exposed to solutions of differing tonicities. Hypothesis: If we add higher concentrations of sugar to the dialysis tubing‚ then the net movement of coffee into the dialysis tubing will increase. Materials scale or balance 24" dialysis tubing 4 transfer pipets sugar scissors rubber bands four coffee cups - they need to be roughly the same size
Premium Water Dialysis Dialysis tubing
causes the water molecules to diffuse from an area of high water concentration to an area of low water concentration. This movement itself is osmosis. To determine if the concentration of solutions is isotonic (solute is equal to the cell)‚ hypotonic (solute is lower outside of the cell)‚ or hypertonic (solute is higher outside of the cell)‚ you measure the total amount of particles in the solution. My hypothesis is: if the dialysis tubing that is filled with sucrose solution and fully emerged in
Premium Diffusion Osmosis Semipermeable membrane
Abstract: Osmosis is the transport of water across a selectively permeable membrane from a region of a higher water chemical potential to a region of lower water chemical potential. (Tzahi 2006) To demonstrate osmosis lab‚ artificial cells were made with various sucrose concentrations and were placed into beakers of different sucrose solutions. Overall the results showed that the higher percentage of concentration gradient of sucrose‚ the more the artificial cells absorbed. Introduction: The
Premium Concentration Chemistry Osmosis
potato’s cell membrane submerged for 94 hours in the solutation. Background Information: Osmosis is the movement of solvent molecules across a partially permeable membrane. They move from a region of low concentration (hypotonic) to a region of high concentration (hypertonic). The rate of osmosis across a eukaryotic cell membrane can be affected by different factors; including temperature‚ concentration gradient‚ water potential and the surface area for osmosis to occur and pressure exerted on
Premium Osmosis Potato Concentration
without a shell. II. Hypothesis The egg that will placed in the distilled water will swell like a balloon. This is because distilled water is a hypotonic solution which makes water go in a cell (the egg without a shell) and make it swell. The egg that will placed in the syrup will shrivel up and look a raisin a little. This is because syrup is a hypertonic solution which makes water go out of a cell (the egg without a shell) and make it shrivel up. III. Materials • The eggs without a shell • Foam
Premium Egg Egg yolk Water
salt concentration did not result in the least weight gain (g). Table 1 clearly highlights that the 3% salt concentration resulted in the least weight gain (g). The distilled water resulted in the most weight gain (g) because the solution is hypotonic – a hypotonic solution results in the water diffusing into the cell because the molecules of the substance are moving from an area of higher concentration (outside of the cell) to an area of lower concentration (inside the cell) (Hammel & Schelegel 2005)
Premium Water Chemistry Concentration
into the solution for further analysis. Ultimately‚ the egg in distilled water exhibited an increase in weight while the egg in salt water was the opposite; a decrease in weight. This conclusion proves that water diffusion occurs from a hypotonic solution to a hypertonic solution. Osmosis in a plant cell was tested by comparing an Elodea cell in pond‚ distilled‚ and salt water. After obtaining samples of the Elodea cell and preparing a wet mount of each leaf using all three types of water‚ observations
Premium Diffusion Osmosis Molecular diffusion