Lab 6 Biomechanics of Frog Skeletal Muscle I. Purpose This exercise is designed to demonstrate some mechanical and physiological properties of skeletal muscle using the gastrocnemius muscle of a frog. II. Performance Objectives At the end of this exercise the student should be able to: 1. Define minimal (threshold)‚ subminimal‚ maximal‚ and supramaximal stimulus. 2. Explain what is meant by a “graded” response. 3. Draw a diagram of the setup used in this lab exercise. 4. Calculate the
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Experiment 8 “Lipids” and the purpose of the lab is to become familiar with the properties and reactions of certain lipids called fats or oil. For this lab‚ students are testing the properties and reactions of lipids and soap will be prepared and its properties will be tested. To begin the experiment‚ place 5 mls of water‚ ethyl alcohol‚ chloroform‚ and toluene in to four clean test tubes and add 1 drops of cottonseed oil to each test tube. Shake it and record your observation. To do part B‚ in three
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BIOLOGY PLAN AND DESIGN LAB Date: / / Syllabus Topic: Hypothesis: A glass of milk lasts longer in cold temperatures. Aim: To determine a better range of temperature for storing a glass of milk. Apparatus and Materials: • 2-100cm3 beakers • 2-500cm3 beakers • Milk • Ice • Hot water • Marker Method: 1. Obtain 2 clean 100cm3 beakers and 2 clean 500cm3 beakers. 2. Add 50cm3 of milk to each 100cm3 beaker. 3. Label the 100cm3 beakers‚ A and B. 4. Label the 500cm3
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The purpose of this lab that was completed was to observe standing wave patterns in clamped strings‚ and understand the effect of the standing wave frequencies of changing the length (L)‚ tension (T)‚ and linear density (p) of the strings. Standing wave patterns in strings are observed at certain excitation frequencies for special values of L‚ T‚ and p. A standing wave can be defined as a vibration of a system in which some particular points remain fixed while others between them vibrate with the
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COURSE:BSC CHEMISTRY INDEX NUMBER:1025513 EXPERIMENT NUMBER:O.1.2.3 DEMONSTRATOR: BAIDOO DATE:23 RD JANUARY‚2014. TITLE: SEPARATION AND PURIFICATION OF ORGANIC COMPOUNDS AIMS: To isolate organic‚ inorganic and component from a given
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LABORATORY REPORT SUBMISSION Experiment Title : Archimedes Principle Due Date : 13 Nov 2014 Lab session : Group C Group : 03 STUDENTS DECLARATION OF WORK We declare that the work submitted is our own. We confirm that we have read and understood the University regulations with regard to Plagiarism‚ Collusion and Cheating in this work will be penalized. No. Student ID Group Members Signature 1 1001336124 Rafat Saifullah Joy 2 1001025540 Liew Jian Huei 3 1001233272
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Lab 3 – Separation of a Mixture of Solids Cathy Lab Partners: Chelsea Brooke Sept 4‚ 2012 Chemistry 131A Dr. Vicki H Audia Pelab Questions: Proposed procedure for separation of a mixture: Use physical properties of the 4 substances to separate. 1. Remove iron with magnet 2. Add water to the mixture to melt the benzoic acid and NaCl then filter out sand. 3. Chill the solution and scoop the acid out leaving a salt solution. 4. Boil water away leaving salt. Purpose: The
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Conclusions: We learned that some nasty stains can come out with some unorthodox products. We used on our stain Isopropyl alcohol (rubbing alcohol)‚ bleach‚ and shout. The product that did the best at pulling out stains was the Isopropyl alcohol. Isopropyl alcohol is a clear‚ colorless‚ flammable‚ mobile liquid‚ (CH3)2CHOH‚ used in antifreeze compounds‚ in lotions and cosmetics‚ and as a solvent for gums‚ shellac‚ and essential oils. It did great job at pulling stains right out of the cloth. This
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Introduction: Capture and recapture is a method to observe animals‚ give information on survival‚ recruitment‚ and size of the population. You capture the animals and mark them and release them. Mark and release repeatedly. Objective: The purpose of this experiment was to analyze the amount of marked beans of the beans we would catch. Hypothesis: If the number of marked beans represents the number of the mocking jays in the forest and the unmarked beans are the food supply then the mocking jays population
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Experiment 55: A Separation and Purification Scheme The final lab report/procedure write-up will consist of the following: Report guide: 1. List the names‚ structures‚ and amounts of each compound in your mixture. 2. Draw a flow chart (like pg 687 in PLKE) showing how you separated and isolated your two compounds. Be sure to include the structures of the compounds at each step. 3. Write a procedure. This should include exactly how you performed your separation. It should have enough
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