Chicken Egg Lab Report
Diffusion and Osmosis
Using “Deshelled”
Chicken Eggs
Introduction
In order for a cell to survive and function, it must maintain an internal steady state of environment in the midst of an ever-changing external environment. This steadiness is provided by the regulation of the movement of materials across its plasma membrane. Since not all substances penetrate the membrane equally well, the membrane is said to be differentially permeable. (IS) Diffusion is the tendency of molecules or ions to move from an area where they are in higher concentration to an area where they are in lower concentration, that is, down or along their concentration gradient. Fat-soluble solutes can diffuse directly through the membrane by dissolving in the lipid. Facilitated diffusion is the passive movement of certain solutes across the membrane either by their binding with a …show more content…
Bring the materials from the course setup area.
2. After gently blotting, weigh each egg separately to the nearest 0.1g and record the weights in Table 1 at time “0”.
3. Place eggs 1, 2, and 3 into separate culture dishes containing solutions of distilled water 0% sucrose, 14% sucrose, and 40% sucrose respectively.
4. At 15 minutes intervals, that is after 15, 30, 45, 60, and 75 minutes, remove the eggs from the dishes; carefully wipe off all excess water, and again weigh each egg separately. Record the weight in Table 1.
5. Replace the egg in the dish for the next interval.
6. After the experiment is complete, return the eggs to their container and each solution to its labeled container.
7. Clean the dishes and weigh boats and return all materials to the setup area,
Results
Weight of Eggs (g) vs. Time (minutes) Weight of Bowl 7.0g
Time (Min.)
0% Sucrose
14% Sucrose
40% Sucrose
0
100.0
Using “Deshelled”
Chicken Eggs
Introduction
In order for a cell to survive and function, it must maintain an internal steady state of environment in the midst of an ever-changing external environment. This steadiness is provided by the regulation of the movement of materials across its plasma membrane. Since not all substances penetrate the membrane equally well, the membrane is said to be differentially permeable. (IS) Diffusion is the tendency of molecules or ions to move from an area where they are in higher concentration to an area where they are in lower concentration, that is, down or along their concentration gradient. Fat-soluble solutes can diffuse directly through the membrane by dissolving in the lipid. Facilitated diffusion is the passive movement of certain solutes across the membrane either by their binding with a …show more content…
Bring the materials from the course setup area.
2. After gently blotting, weigh each egg separately to the nearest 0.1g and record the weights in Table 1 at time “0”.
3. Place eggs 1, 2, and 3 into separate culture dishes containing solutions of distilled water 0% sucrose, 14% sucrose, and 40% sucrose respectively.
4. At 15 minutes intervals, that is after 15, 30, 45, 60, and 75 minutes, remove the eggs from the dishes; carefully wipe off all excess water, and again weigh each egg separately. Record the weight in Table 1.
5. Replace the egg in the dish for the next interval.
6. After the experiment is complete, return the eggs to their container and each solution to its labeled container.
7. Clean the dishes and weigh boats and return all materials to the setup area,
Results
Weight of Eggs (g) vs. Time (minutes) Weight of Bowl 7.0g
Time (Min.)
0% Sucrose
14% Sucrose
40% Sucrose
0
100.0