Biology 1010 8/27/13 Life: * Order: Pine Cone‚ Bacteria – where things are * Regulation: Regulate their internal environment * Maintain homeostasis * Ex. Breath‚ too much CO2‚ changes pH Sends message to brain * Growth and development: Definite pattern to growth and development * Directed by DNA (genetic material where the genes are found) * Energy processing: All organisms must have energy * Humans: Food (Heterotrophs = other-feeding (fungi and
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higher solute concentration to an area of lower solute concentration. There are three relative concentrations of solutions. Hypertonic solutions yield a higher concentration than that of the cell.Hypotonic solutions have a lower concentration and isotonic solution has an equal concentration. Method: The eggs were soaked in vinegar for 48 hours. At the end of this period the eggs are dried off and mass is recorded. The eggs are then placed in distilled water. They are removed and the mass recorded
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When isotonic exercises are performed the muscles shorten and lengthen to cause movement. The most common type of isotonic exercise is freee weight exercises. Isotonic exercise allows for the use of resistance through a full range of joint motion and provides an effective stimulus development. As i am a beginner at weight training i will
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physioex 9.0 Review Sheet Exercise 5 Cardiovascular Dynamics Name ___ Lab Time/Date ___ Activity 1 Studying the Effect of Blood Vessel Radius on Blood Flow Rate 1. Explain how the body establishes a pressure gradient for fluid flow. ___ ___ 2. Explain the effect that the flow tube radius change had on flow rate. How well did the results compare with your prediction? ___ ___ 3. Describe the effect that radius changes have on the laminar flow of a fluid.___ ___ 4. Why do you think the
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Nov 19/12 Solute Concentration of Potatoes Block 2-2 Purpose: To determine the concentration of solute in the potato’s cytoplasm by measuring the change in mass after the process of osmosis. Materials and Equipment: Refer to Biology 12 Lab Manual – Investigation 13 Procedure: Refer to Biology 12 Lab Manual – Investigation 13 Data and Observations: The Potatoes change in mass after the process of Osmosis Test Tube # | Concentration
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Concentration Gradients 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
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“Cells are the basic building blocks of all living things” (Genetics Home Reference‚ 2015)‚ cells are the smallest unit that is capable of performing life functions. They are responsible for the conversion of nutrients from food into energy‚ the structure of the body and perform specialised functions for each different organelle. There are two main types of cells‚ Prokaryotic and Eukaryotic. The Prokaryotic (see appendix one) is a single-celled organism without a membrane-bound structure‚ meaning
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there is an uneven distribution of solute in a solvent. The more abundant the solute is in solvent‚ the higher the rate of osmosis through the diffusion gradient forming a hypertonic or hypotonic solution. Solvent with equal or no solute forms an isotonic solution. Throughout this lab‚ data was collected and compiled to analyze these effects across selectively permeable membranes. The results indicated that the water molecules indeed move from high concentration to low concentration‚ while solutes
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Site Name: PhysioEx 8.0Author Name: Stabler‚ ZaoLocation on Site: Exercise > Lab Quiz 100% Correct of 20 items:20 Correct: 100%0 Incorrect: 0% Submitted on Sun Sep 27 2009 15:44:17 GMT-0600 (Mountain Daylight Time) --------------------------------------------------------------------------Question 1 Differential permeability can also be described as: Correct: the allowance of only certain substances to pass through a membrane without hindrance. Compare the molecule size and the MWCO for the
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flexible was also shown in another experiment. Osmosis is founded in three types of solutions: hypertonic‚ hypotonic and isotonic solutions. Hypertonic solution is when there is a higher concentration of solutes (glucose‚ salt) on the outside of the cell wall in the solution. Hypotonic solution is when there is a higher concentration of solutes within the cell wall. And Isotonic solution is when the concentrations of solutes on
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