You will prepare two slides, one will have the leaf in its normal water and the second will have a leaf that has been soaked for a few minutes in salt water procedure 1) obtain two leaves. Osmosis in plant cells plasmolysis of elodea the ability of water to pass through cell membranes is also called osmosis under different environmental conditions, osmosis can affect the. This video shows osmosis in elodea cells at time 0, the cells appear as they would in pond water a 20% sucrose solution is then added, creating a hypertonic environment water leaves the.
Diffusion(and(osmosis(lab((part(1:(surface:area:to:volume(ratio(andcell(size( background(cellsizeandshapeareimportantfactorsindeterminingtherateofdiffusion. Hypothesis part 1: if the largest agar part 3: osmosis in living plant cells: 10/10/14 problem 3: how will different solutions affect the cells of an elodea leaf hypothesis: if a. C osmosis - plasmolysis of an elodea leaf 1 prepare a wet mount of an elodea leaf and observe it under the microscope at 430x 2p deld l fb dd d f di hl id ( l) l i bf2 prepare a second. Experiment: elodea (anacharis) plant cells [homeostasis, osmosis, photosynthesis] osmosis has important implications for organisms and their cells because cells contain mostly water.
Diffusion and osmosis objectives: hypertonic, isotonic, hypothesis, selectively permeable, prediction, control, independent variable, dependent variable • to further your understanding. Diffusion and osmosis draw a picture of your hypothesis materials elodea leaf microscope slide remove a leaf from an elodea plant using the forceps make a wet mount of the. Osmosis and tonicity hypertonic, isotonic, and hypotonic solutions and their effect on cells.
Initially you will make a slide of an elodea leaf under normal (isotonic) conditions then you will make a leaf slide under hypertonic and hypotonic determining threshold for plasmolysis. As you saw last week with the elodea leaf, living cells have some amount of water inside them, and some amount of dissolved substance (solute: sugars, salts, proteins) in this part of the. Place a leaf of elodea in a small beaker of distilled water place another leaf in a small beaker of salt water record your hypothesis on your data sheet while the elodea reacts to the.
Diffusion and osmosis in an egg model: exploring membrane physiology 3 further your understanding of experimental design and practice hypothesis testing introduction this lab will. This lab will introduce you to 1) diffusion and osmosis (especially as they relate cell membranes) and 2) the scientific method you will actually be using the scientific method as you work. Hypothesis: null hypothesis: if the elodea leaf is placed in a hypertonic solution, the cells will not undergo plasmolysis alternate hypothesis: if the elodea leaf is placed in a hypertonic.
Essays - largest database of quality sample essays and research papers on osmosis in an elodea leaf hypothesis. Start studying lab quiz 2 learn vocabulary, terms, and more with flashcards, games, and other study tools search create in the osmosis experiment, which bag ended up lighter than. Osmosis in potato cells create a hypothesis for the experiment described below plasmolysis in elodea create a hypothesis for the experiment described below obtain a leaf of elodea. Lab 4: diffusion and osmosis (revised fall 2009) lab 4 - biol 211 - page 1 of 23 lab 4 diffusion and osmosis in selectively permeable membranes prelab assignment before coming to lab, read.