Potato osmolarity lab

Hormone binding sites receptor proteins Proteins embedded in the membrane, which bind to specific hormones. When the hormone binds, it causes the receptor protein to undergo a conformational change, which signals the cell to perform a function. For example, insulin receptors.

Potato osmolarity lab

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I spend most of my time doing papers like this now. So on the next paper I believe I will knock it out of the park so here is my paper. Osmotic concentration Abstract Water flows in and out of cells in an attempt to attain a state of equilibrium.

The concentration of solutes to solvent in the cells environment is the cause of the water flow. Plant and animal cells can be negatively affected or positively affected due to the concentration balance in their environment.

Potato cells were used to see the affects of sucrose in different concentrations.

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In some concentrations a weight change was seen in the potato. Introduction In the osmotic concentration lab potatoes were used to see the affects of different concentrations of sucrose on the weight of the potatoes.

Solanum tubersum more commonly known as the potato is the fourth most important food crop in the world. It originates from South America and is now seen all over the world in different elevations and climates. The potato is not only seen as a vegetable but as an ant famine food because of its ability to grow in harsh environments and feed many people in third world nations.

Potatoes are full sucrose used for energy storage in plants. Sucrose is a carbohydrate or sugar found in food.

Potato osmolarity lab

Consumers break down sucrose a disaccharide into two monosaccharide, so they can be absorbed easier and quicker into the blood. Because potatoes have sucrose inside them a concentration gradient is present and if placed in any solution osmosis movement of water through semi permeable membranes would naturally occur.

If the concentration of sucrose in the solutions is less than the concentration in the potato then the potato will gain mass and vice versa. In conducting this experiment sucrose concentrations can be used in the future to obtain a more productive potato regarding crops.

Further experimentation would be needed to determine the effects. The china marker was used to label the five ml beakers with the five different concentrations of sucrose 0. Then ml of each sucrose solutions were poured into their designated beaker. A knife was used to peel the potato and then the metric ruler was used to measure five 3cm cubes.

The cubes were weighed on the digital balance to the nearest tenths of a gram. The weight of each potato cube was recorded on table under initial weight.

As each mass was taken the potato cubes were placed in the solutions of sucrose where the initial mass was recorded. After letting the potatoes soak in their designated sucrose solutions they were removed and blotted lightly with the paper towels.

The potatoes where then measured on the digital balance and the changes in weight were recorded on table under final. Results The initial weight of all five potatoes changed after soaking in the sucrose solutions. The potatoes in the. An unexpected result happened to the.Initial mass of potato= ×/=%Percentage change in mass of the potato cylinder in experiment 2x ∆mass=Initial mass of potato= ×/=%In order to calculate the change in the mass of each potato cylinder wemust calculate the change in percentage of the potato cylinders to find theaverage change in mass for the.

In this lab we can show osmolarity by using sucrose solutions and potato ores. This experiment displays hypertonic, hypotonic and isotonic solutions. A hypertonic solution is a solution with a relatively higher concentration, hypotonic cis relatively lower, and isotonic is the same.

As the SA to volume ratio decreases, the rate or the cell’s ability to exchange materials through diffusion or radiation decreases. If metabolism is to continue at an optimum rate, substances such as oxygen must be absorbed and waste products such as carbon-dioxide need to be removed.

Potato Osmosis Introduction: A shipwrecked sailor is stranded on a small desert island with no fresh water to drink. She knows she could last without food for up to a month, but if she didn’t have water to drink she would be dead within a week. Hoping to postpone the inevitable, her thirst drove her Continue reading "potato osmosis bi lab".

Abstract This lab was conducted in order to determine the molarity of sucrose concentration where the mass of potato tuber segments does not change, indicating an isosmotic concentration.5/5(2).

Potato osmolarity lab

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