Osmosis Lab Report

Words: 848

Pages: 4

Open Document

Introduction: The purpose of this lab was to explore concentration gradient, diffusion, and osmosis further. Egg one’s circumference ( the long way and short way) and its mass will be compared to egg two’s circumference and its mass. In this lab we look at concentration gradient and osmosis. Concentration gradient is the difference in concentration from one place of high concentration to an area of low concentration. In an egg, there is protein, carbohydrates (sugars), and water. We are also studying osmosis. This is diffusion of water. Because of concentration gradient, osmosis can happen. When the shell of the egg has been removed and left just the egg’s insides and membrane left behind, both of these processes can take place. We have learned …show more content…
This experiment took about 4 days to gather all the right measurement because both eggs had to soak in vinegar for 2 days. It is possible that a person ends up with 3 days of measurements because the eggs aren't observed each day. Conclusion: In the end, it was found that the Hypothesis at the beginning of the experiment was right. Egg one did shrink just a little bit. There was not enough information to observe weather egg two would have shrunk or not, however. Because egg one shrunk, as shown by the data above, it has been proven that the solution inside the egg was hypotonic and the solution the egg soaked in was hypertonic. One area of error for this experiment is the soaking of vinegar. As the egg soaked in vinegar, it starts to float. Since it floats, the parts of the shell that stay outside of the vinagre remain hard. This is bad when a person then tries to rub off the shell. The hard pieces of shell, if pulled off, can rupture the membrane. I would suggest finding a way to hold the egg down to the cup as it soaks so the entire egg is submerged. For this experiment, my information came from Mr. Devien and the Holton McDougal Biology

Lab Report On Osmosis

Osmosis Lab Mikayla Clarke 10/2/16 Abstract: The purpose for the osmosis lab was to observe osmosis and determine the sucrose molarity of a potato and a carrot. This lab was separated into two different parts. In the first part of the lab, osmosis was observed by placing dialysis bags with various concentrations of sucrose into beakers of water. In the second part of the lab, the molar concentration of a potato and a carrot were determined by placing slices of potatoes and carrots…

Words 1625 - Pages 7

Osmosis Lab Report

necessary for our survival. One thing that is vital to our existence that happens without our even knowing is osmosis. According to “HyperPhysics” by Georgia State University, osmosis helps bring essential minerals that we need to our body. Without it, we would not get these essential nutrients. Osmosis is the diffusion of water. The Society of Oxford University Engineers (SOUE) states that osmosis is “the net movement of water from a weaker, less concentrated solution across a selectively permeable membrane…

Words 897 - Pages 4

Egg Osmosis Lab Report

This lab project was to demonstrate the system of how osmosis and diffusion works. More specifically to examine the movement of how substances flow in and out of the cell membrane. Which was demonstrated by soaking an egg in various liquids with a time table to see how it would affect the egg. The egg can be substituted as the cell membrane. Predictions, observations, and procedures were made. Before the lab procedures can be discussed, Osmosis and other key terms should be mentioned and explained…

Words 706 - Pages 3

Osmosis And Diffusion Lab Report

have become clear and the starch filled bag will be white. Materials: 1 plastic baggie Corn starch Iodine Tap water Stopwatch Twist tie or rubber band Clear drinking glass Research Question: What is the difference between osmosis and diffusion? Experimental Procedure: 1. Place ½ cup of water and 1 tsp of corn starch into the baggie. 2. Seal the baggie and also place the twist tie or rubber band on it as an extra security measure. 3. Fill your drinking glass half full…

Words 455 - Pages 2

Osmosis Diffusion Lab Report

Sasha Brown Dipitro 10/17/2014 Osmosis Diffusion lab Procedure1: The solution hydrochloric acid which had a pH of 4 was mix with 0.1 phenolphthalein and the color stayed the same, it did not change. The base was sodium hydroxide which had a pH of 10 and when mix with phenolphthalein it turned fuschia. Agar size(cm) Surface Area Volume Ratio of surface area to volume Cell A (2x2s0.5) 12cm2 2cm3 6cm2:1cm4 Cell B (1x4x0.5) 13cm2 2cm3 6.5cm2:1 cm 4 Cell C (2x4x0…

Words 1082 - Pages 5

Potato Osmosis Lab Report

Osmosis in Potato inquiry Introduction Cell membranes are permeable to water and all cell membranes are selectively permeable. This means some substances are allowed to enter the interior of the cell and some substances are not allowed to enter the interior of the cell. Osmosis is the movement of water across membranes to balance solute. Osmosis moves water from a hypotonic area to a hypertonic area, also known as diffusion. This process is especially important in a plant cell because it allows…

Words 761 - Pages 4

Lab Report Osmosis Essay

The effect of osmosis on artificial cells with different concentrations of sucrose Alex McRae Biology 120-902 Grand Valley State University 1 Campus Drive Allendale, MI 49401 mcraeal@mail.gvsu.edu Abstract In this study, we tested the validity of osmosis in artificial animal cells. Osmosis is the diffusion of free water across a membrane. The purpose of the study was to calculate the rate of osmosis in artificial cells containing different…

Words 1673 - Pages 7

Egg Osmosis Lab Report

an animal cell and also see the effects of the different solutions that are used on the egg during the experiment. Also made a hypothesis on what will happen to cell when it is placed in water by saying it is going to cause the cell to experience osmosis and the altering of the shape of its cell membrane. This was proven wrong because the egg did not alter in shape, all it did was stay the same shape but increase in mass. The answer that was conducted from this experiment was used on a shell-less…

Words 468 - Pages 2

Essay on Biology Lab Report Ib Hl Osmosis

Biology Lab Report 2 Investigating the phenomenon of Osmosis in plant tissues: Potato in different concentrations of NaCl Tutor: Maria Tsaousidou By Marina Gkritzioudi Biology Lab Report 2 Investigating the phenomenon of Osmosis in plant tissues: Potato in different concentrations of NaCl Tutor: Maria Tsaousidou By Marina Gkritzioudi Investigating the phenomenon of Osmosis in plant tissues: Potato in different concentrations of NaCl Introduction: Osmosis is the movement of…

Words 1932 - Pages 8

Osmosis Potato Lab Report Biology 4u Essay

Introduction The movement of water molecules across a semi-permeable membrane is the process of osmosis. If there is a solute and a solvent, each containing different concentration levels, then the water would move along its concentration gradient until each side of the membrane are equal. The water moves because the membrane is impermeable to the solute and the solute concentrations may differ on either side of the membrane. Water molecules may move in and out of the cell, but there is no net diffusion…

Words 2115 - Pages 9