Osmosis Egg Lab
Objective:
To observe the effects of osmosis on eggs placed in vinegar (5% acetic acid), syrup (60% sugar solution), and water (100% distilled).
Hypothesis:
Hypothesis #1: It was hypothesised that the egg would gain 59 grams of mass after soaking in vinegar for 24 hours.
Hypothesis #2: It was hypothesised that the egg would become larger when soaked in syrup than it once was due to the hypotonic environment.
Hypothesis #3: It was hypothesised that the egg would soak in water for 72 hours, losing mass.
Introduction:
Osmosis occurs when water from extracellular fluid from the interior of the cell also diffuses freely through the cell membrane, in a way that concentration of water on both sides of the membrane are equal.
Isotonic: When …show more content…
water concentration inside the cell is equivalent to the water concentration outside of the cell, equal amounts of water move in and out of the cell, meaning that there is no movement in water.
Hypotonic: Water concentration outside of the cell is much greater that the water concentration inside of the cell, making it to become larger.
Hypertonic: Water concentration inside the cell is greater than the outside cell, so water moves out of the cell.
Passive transport is known to be a movement of biochemicals and other atomic or molecular substances across cell membranes and require no energy.
Mainly because it’s controlled by the responsibility of the system to grow. The rate of passive transport relies on the permeability of the cell membrane depending on the arrangement and features of the membrane lipids and proteins. Simple diffusion is the movement from area of higher concentration to areas of lower concentration. This is an example of passive transport. Osmosis and facilitated diffusion are known to be other examples of passive transport. Osmosis occurs when water molecules are diffused and facilitated diffusion is when a molecule can’t pass freely across the cell membrane with requiring one of the two proteins: carrier proteins which are large carriers that use channels, and channel proteins which contain sodium (Na+). Passive transport also occurs for only very small molecules such as oxygen (O2) with equals two atoms, carbon dioxide (CO2) and water (H2O) which both equal three atoms. The size of a cell is determined by how far O2 and CO2 can travel in a cell. Diffusion can only work well over short distances. Diffusion limits cell …show more content…
size.
Active transport uses energy, against the concentration gradient or bringing really big molecules into the cell. A common protein pump in a cell membrane is the Na-K pump. Energy comes in the form of a chemical called ATP which is made in the mitochondrion. Some particles are too large to cross the cell membrane even by using a protein. In this case, the cell must use bulk transport.
The purpose of the vinegar was to wear off the egg’s shell to study osmosis on the egg’s membrane. The egg’s shell contains calcium carbonate. : CH3COOH => CaCO3.
Concentration gradient is the process of particles, moving through a solution or gas from an area with a high number of particles to an area with a low number of particles. The areas are usually separated by a membrane. This membrane can be permeable, semipermeable, or become non-permeable. Permeable is known to be a membrane that can be passed through by particles, ions, or water. Semi-permeable means that a few or particles, ions, or water can be allowed to pass through the membrane. Lastly, non-permeable membrane means that no particles, ions, or water can be allowed pass through the membrane.
While regular distilled water is about 100%, the egg has about 90% of water within the membrane. Vinegar has 5% acetic acid (HC2H3O2) with 95% water, and syrup has about 60% sugar solution and 24%water.
In the cell membrane, there are two types of transportation, passive transport and active transport. Passive transport is known to not require any energy for such membrane transports like osmosis, simple diffusion, and facilitated diffusion. It occurs for only very small molecules such as oxygen, carbon dioxide and water. Active transport is different from passive transport, as it does require energy against the concentration gradient by bringing large molecules into the cell. Endocytosis is an example of active transport, as it contains three main forms endocytosis which are: Pinocytosis, Phagocytosis, and Receptor Assisted Endocytosis. Protein pumps are another example of active transport.
Endocytosis is defined when the cell membrane is folded inwards, trapping and surrounding a few amount of matter from the extracellular fluid and requires energy.
Endo means within, while cytosis means transport. Endocytosis has three main forms. One form is “Pinocytosis” which is known to ingest liquid into a cell by the development of small vesicles from the cell membrane. “Phagocytosis” is the second form, by which its purpose is to ingest bacteria or other material such as food particles. The third and final form is “Receptor Assisted Endocytosis” that’s known to take certain molecules that are joined to important proteins in the cell membrane that are served as receptors. Taking away waste from the cell this was is called “exocytosis”, which also requires
energy.
Passive transport and active transport are well known to be the two types of membrane transports in the cell membrane. Passive transport requires no energy while active transport requires energy. There are three mechanisms for passive transport, osmosis (H2O), simple diffusion (O2, CO2), facilitated diffusion (which contains ions and glucose). Active transport must require energy and so do the following molecules: Protein pumps (Na/K pump) and endocytosis.
The cell membrane is selectively permeable and controls what enters and exits the cell. The cell membrane is made up of two bilayers of phospholipids.
Around the phospholipids are water (H2O). The polar heads are hydrophilic meaning that they are attracted to water, while the nonpolar tails are hydrophobic meaning that they cannot be around water. Proteins are stubbed in the bilayers of the phospholipids (cell membrane) and can float around the bilayer. The description of the cell membrane is called “Fluid-Mosaic Membrane Model”. Cholesterol is also within the cell membrane and helps keep it stable when the cell is uncovered to temperature changes.
Results:
When the egg is placed in beaker filled with vinegar solution (5% acetic acid solution), bubbles of less than 1 mm are stuck to the egg, The egg by 250 mL is floating in the beaker with the bubbles and vinegar appearing clear of no color change. After being submerged in vinegar for 24 hours, the egg has risen with the same small clear bubbles of 1 mm still attached to the egg. The egg’s color changed to a slight yellow along with a bitter scent.A foam like structure lie atop of the vinegar. The egg’s texture is soft compared to before, containing flake-like structures which are from the egg’s shell. Before submerged in vinegar, the egg’s mass was 59 grams. Now after 24 hours it weighed 75 grams. Next the egg is placed in syrup solution (60% sugar solution), where the egg’s portion size is about 3 cm of width, with the egg having a light yellow color, a hollow soft texture, and a bitter scent. With syrup washed off the egg remains a golden brown color and a soft, fragile texture. Before being submerged in syrup the egg was 75 grams after it was submerged with vinegar, now with the egg taken out of the syrup solution, it now gained 56 grams, losing mass. Eventually, the egg is now placed in distilled water (100%) making the egg’s mass raised higher in size than before with a partially softer texture and golden white color. The bubbles of the egg shrunken to about less than 0.5 m, The color of the water is a clear gold. The scent of the egg has a bittersweet scent of vinegar and syrup.
To observe the effects of osmosis on eggs placed in vinegar (5% acetic acid), syrup (60% sugar solution), and water (100% distilled).
Hypothesis:
Hypothesis #1: It was hypothesised that the egg would gain 59 grams of mass after soaking in vinegar for 24 hours.
Hypothesis #2: It was hypothesised that the egg would become larger when soaked in syrup than it once was due to the hypotonic environment.
Hypothesis #3: It was hypothesised that the egg would soak in water for 72 hours, losing mass.
Introduction:
Osmosis occurs when water from extracellular fluid from the interior of the cell also diffuses freely through the cell membrane, in a way that concentration of water on both sides of the membrane are equal.
Isotonic: When …show more content…
water concentration inside the cell is equivalent to the water concentration outside of the cell, equal amounts of water move in and out of the cell, meaning that there is no movement in water.
Hypotonic: Water concentration outside of the cell is much greater that the water concentration inside of the cell, making it to become larger.
Hypertonic: Water concentration inside the cell is greater than the outside cell, so water moves out of the cell.
Passive transport is known to be a movement of biochemicals and other atomic or molecular substances across cell membranes and require no energy.
Mainly because it’s controlled by the responsibility of the system to grow. The rate of passive transport relies on the permeability of the cell membrane depending on the arrangement and features of the membrane lipids and proteins. Simple diffusion is the movement from area of higher concentration to areas of lower concentration. This is an example of passive transport. Osmosis and facilitated diffusion are known to be other examples of passive transport. Osmosis occurs when water molecules are diffused and facilitated diffusion is when a molecule can’t pass freely across the cell membrane with requiring one of the two proteins: carrier proteins which are large carriers that use channels, and channel proteins which contain sodium (Na+). Passive transport also occurs for only very small molecules such as oxygen (O2) with equals two atoms, carbon dioxide (CO2) and water (H2O) which both equal three atoms. The size of a cell is determined by how far O2 and CO2 can travel in a cell. Diffusion can only work well over short distances. Diffusion limits cell …show more content…
size.
Active transport uses energy, against the concentration gradient or bringing really big molecules into the cell. A common protein pump in a cell membrane is the Na-K pump. Energy comes in the form of a chemical called ATP which is made in the mitochondrion. Some particles are too large to cross the cell membrane even by using a protein. In this case, the cell must use bulk transport.
The purpose of the vinegar was to wear off the egg’s shell to study osmosis on the egg’s membrane. The egg’s shell contains calcium carbonate. : CH3COOH => CaCO3.
Concentration gradient is the process of particles, moving through a solution or gas from an area with a high number of particles to an area with a low number of particles. The areas are usually separated by a membrane. This membrane can be permeable, semipermeable, or become non-permeable. Permeable is known to be a membrane that can be passed through by particles, ions, or water. Semi-permeable means that a few or particles, ions, or water can be allowed to pass through the membrane. Lastly, non-permeable membrane means that no particles, ions, or water can be allowed pass through the membrane.
While regular distilled water is about 100%, the egg has about 90% of water within the membrane. Vinegar has 5% acetic acid (HC2H3O2) with 95% water, and syrup has about 60% sugar solution and 24%water.
In the cell membrane, there are two types of transportation, passive transport and active transport. Passive transport is known to not require any energy for such membrane transports like osmosis, simple diffusion, and facilitated diffusion. It occurs for only very small molecules such as oxygen, carbon dioxide and water. Active transport is different from passive transport, as it does require energy against the concentration gradient by bringing large molecules into the cell. Endocytosis is an example of active transport, as it contains three main forms endocytosis which are: Pinocytosis, Phagocytosis, and Receptor Assisted Endocytosis. Protein pumps are another example of active transport.
Endocytosis is defined when the cell membrane is folded inwards, trapping and surrounding a few amount of matter from the extracellular fluid and requires energy.
Endo means within, while cytosis means transport. Endocytosis has three main forms. One form is “Pinocytosis” which is known to ingest liquid into a cell by the development of small vesicles from the cell membrane. “Phagocytosis” is the second form, by which its purpose is to ingest bacteria or other material such as food particles. The third and final form is “Receptor Assisted Endocytosis” that’s known to take certain molecules that are joined to important proteins in the cell membrane that are served as receptors. Taking away waste from the cell this was is called “exocytosis”, which also requires
energy.
Passive transport and active transport are well known to be the two types of membrane transports in the cell membrane. Passive transport requires no energy while active transport requires energy. There are three mechanisms for passive transport, osmosis (H2O), simple diffusion (O2, CO2), facilitated diffusion (which contains ions and glucose). Active transport must require energy and so do the following molecules: Protein pumps (Na/K pump) and endocytosis.
The cell membrane is selectively permeable and controls what enters and exits the cell. The cell membrane is made up of two bilayers of phospholipids.
Around the phospholipids are water (H2O). The polar heads are hydrophilic meaning that they are attracted to water, while the nonpolar tails are hydrophobic meaning that they cannot be around water. Proteins are stubbed in the bilayers of the phospholipids (cell membrane) and can float around the bilayer. The description of the cell membrane is called “Fluid-Mosaic Membrane Model”. Cholesterol is also within the cell membrane and helps keep it stable when the cell is uncovered to temperature changes.
Results:
When the egg is placed in beaker filled with vinegar solution (5% acetic acid solution), bubbles of less than 1 mm are stuck to the egg, The egg by 250 mL is floating in the beaker with the bubbles and vinegar appearing clear of no color change. After being submerged in vinegar for 24 hours, the egg has risen with the same small clear bubbles of 1 mm still attached to the egg. The egg’s color changed to a slight yellow along with a bitter scent.A foam like structure lie atop of the vinegar. The egg’s texture is soft compared to before, containing flake-like structures which are from the egg’s shell. Before submerged in vinegar, the egg’s mass was 59 grams. Now after 24 hours it weighed 75 grams. Next the egg is placed in syrup solution (60% sugar solution), where the egg’s portion size is about 3 cm of width, with the egg having a light yellow color, a hollow soft texture, and a bitter scent. With syrup washed off the egg remains a golden brown color and a soft, fragile texture. Before being submerged in syrup the egg was 75 grams after it was submerged with vinegar, now with the egg taken out of the syrup solution, it now gained 56 grams, losing mass. Eventually, the egg is now placed in distilled water (100%) making the egg’s mass raised higher in size than before with a partially softer texture and golden white color. The bubbles of the egg shrunken to about less than 0.5 m, The color of the water is a clear gold. The scent of the egg has a bittersweet scent of vinegar and syrup.