Introduction: During this laboratory exercise will identify by the graph given which is isotonic‚ hypotonic‚ or hypertonic. The kidneys are a pair of fist-sized organs located outside the peritoneal cavity on each side of the spine. The kidney is a highly specialized organ that maintains the internal environment of the body by selectively excreting or retaining various substances according to specific body needs. The process of urine formation and adjustment of blood composition involves three
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the potato the water will pass through the membrane and into the potato and it will gain weight. However‚ if the solution has a lower concentration then the potato the water will go out of the potato through the membrane and into the solution as osmosis is the movement of water molecules from a high concentration gradient to a lower concentration. But‚ there is a chance that the solution has the same concentration gradient as the potato meaning that the water will freely move back and forth from
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Experiment 1. For each of the bags‚ identify whether the solution inside was hypertonic‚ hypotonic or isotonic in comparison to the beaker solution it was placed in. Bag #1’s solution was hypotonic compared to the solution of beaker #2. Bag #2’s solution was also hypotonic compared to the solution of beaker #2. Bag #3’s solution was isotonic compared to the solution of beaker #2 and Bag #4’s solution was hypertonic compared to the solution of beaker #1. 2. Which bag increased the most in volume
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high to low concentration. In active transport‚ molecules move from low to high concentration. There are three different types of transports for passive and two types of transports for active. The three types of passive transports are diffusion‚ osmosis‚ and facilitated diffusion. The two types of active transports are endocytosis‚ and exocytosis. Passive transport does not require ATP‚ also known as energy. The reason it does not require energy is because it travels down a concentration gradient
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concentrated areas until equilibrium or homeostasis is reached. 4. Compare and contrast diffusion‚ osmosis‚ and facilitated diffusion.
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Aim: To observe and describe an example of osmosis. Hypothesis: I predict that the water level will rise as the iodine stained water moves through the cellulose bag due to osmosis. The iodine is there so we can see this happening. Materials: * Dialysis(cellulose) tubing * Thistle funnel * Gas jar * Retort clamp and stand * Rubber bands * 50mL beaker * Iodine/potassium iodine solution * 5% starch solution Method: 1) Fill the gas jar to 3 quarters full with
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mol/L | 2.63g | 2.70g | 2.70% | 9 | 0.2 mol/L | 2.77g | 3.17g | 14.4% | 10 | 0.1 mol/L | 3.10g | 3.55g | 14.5% | 11 | 0.0 mol/L | 2.91g | 3.61g | 24.0% | Discussion: 1. Some potatoes increased in mass while others decreased due to osmosis. Potatoes that had a higher concentration increased in mass because water passed through the membrane into the potato in an effort to dilute it. Potatoes that had a lower concentration than the solution decreased in mass because water flowed through
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Osmosis Case study You are a veterinarian working in Indooroopilly and return from lunch to find a nurse treating a six year old kelpie‚ Baxter. Baxter is very lethargic‚ has an increased heart rate‚ and when you pinch his skin the fold remains visible. The owner tells you that they knew something was wrong when‚ upon returning to the outdoor car park from a three hour shopping trip‚ they saw Baxter passed out on the back seat. The temperature in the car would have been very high and Baxter
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Benjamin Foster Physiology 10/23/2012 Case Study 1 (Too much of a good thing)) The definition of OSMOSIS is the movement of a solvent through a membrane separating two solutions of different concentrations. The solvent from the side of weaker concentration usually moves to the side of the stronger concentration‚ diluting it‚ until the concentrations of the solutions are equal on both sides of the membrane. Michael made numerous mistakes in this story that caused the corn fields to die
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will be worth 1 point each whereas Short-answer type questions will be worth 2 points each. This lab will be worth a total of 45 points but will be converted to a percentage grade when registered in your “Gradebook”. |ACTIVITY 1: Simulating Dialysis (Simple Diffusion) |Answers | |The molecular weight of urea is approximately 60. Which of the membranes can it pass through? |D
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