Exercise 2: Skeletal Muscle Physiology: Activity 3: The Effect of Stimulus Frequency on Skeletal Muscle Contraction Lab Report Pre-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly. 1. During a single twitch of a skeletal muscle You correctly answered: b. maximal force is never achieved. 2. When a skeletal muscle is repetitively stimulated‚ twitches can overlap each other and result in a stronger muscle contraction than a stand-alone twitch. This phenomenon is known as
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S. Philip Pachade AP Physics B Energy Conservation Lab 3/8/2014 Preamble After recently finishing up a take home test on the topics of energy conservation we were given an energy conservation lab for a deeper and more intricate analysis of the law of the conservation of energy. As previously mentioned by many physicists the law of conservation of energy states that energy cannot be created or destroyed‚ but
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ELECTRO-TECHNOLOGY (EEE111) EXPERIMENT 8 DIRECT-ON-LINE (D.O.L) STARTER OBJECTIVES 1. To understand the function of contactor‚ push button‚ switches and overload protective devices used in direct-on-line starter. 2. To understand the wiring diagram‚ the inspection and the testing method of the D.O.L starter 3. To understand the steps and safety to power up the signal-phase motor by the D.O.L starter LIST OF REQUIREMENTS EQUIPMENT 1. Insulation tester COMPONENTS 1 Wire
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In 1792 James Gillray painted a painting called “A Voluptuary under the horrors of digestion.” The painting depicts a prince sitting at an empty table where he is picking his teeth with a fork. there is a chamber pot in the background that is overflowing and there are empty alcohol bottles laying around. he is a voluptuary‚ which is someone who overindulges in luxury. The prince meets none of the following criteria to become a good king: he must be good with money‚ must be a good role model‚ and
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Lab #5: Refraction of Light Theory: Refraction can be defined as the bending of a wave when it enters a medium which causes it to have some reduced speed. In terms of light‚ refraction occurs when the ray passes through some medium which slows its speed; such as water or glass. In this instance the ray tends to bend towards the normal of the medium. The amount of bending or refraction which occurs can be calculated using Snell’s Law (). Objective: To measure the index of refraction of Lucite
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REVIEW SHEET EXERCISE 11 Blood Analysis NAME: LAB TIME/DATE: Hematocrit Determination 1. Hematocrit values are usually ( *higher / lower ) in healthy males‚ compared to healthy females. Give one possible explanation for this. 2. Living at high elevations will cause a person’s hematocrit to ( *increase / decrease ). Explain your answer. 3. Long-term athletic training will cause a person’s hematocrit to ( *increase / decrease ). 4. What is anemia? Condition where inadequate
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DETERMINATION OF % COMPOSITION OF PENNIES USING REDOX AND DOUBLE DISPLACEMENT (PRECIPITATION) REACTIONS Pre- Lab 8 Objective: The purpose of this experiment is to determine the percent composition of pennies using oxidation-reduction and double displacement reactions as well as titration techniques. We will take a post 1982 penny and place in a strong acid dissolving the zinc core and leaving behind the copper coating. We will figure out the percent composition from the mass of copper and zinc using
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Books Books are the best friend a person can have. For they are the kind of friends that are never disloyal. A person is never going to feel alone or bored in the presence of books. So‚ books can be read out of passion as a hobby or to gain knowledge and information. For that‚ some books are to be tasted‚ others to be swallowed; and some few to be chewed and digested. There are certain types of books which can only be tasted. To taste a book is just to have some sensations out
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PHYSIOEX 9‚ ACTIVITY #3 Review Questions ACTIVITY #1 1. Explain why increasing extracellular K+ reduces the net diffusion of K+ out the neuron through the K+ leak channels? 2. Explain why increasing extracellular K+ causes the membrane potential to change to a less negative value. How well did the results compare with your predictions? 3. Explain why a change in extracellular Na+ did not significantly alter the membrane potential in the resting neuron? 4. Discuss the relative permeability
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For Learning Centre use only Activity 1: Simulating Dialysis (Simple Diffusion) Lab Report Review Sheet Results 1. 2. Describe two Variables that affect the rate of diffusion. The two variables that affect the rate of diffusion are: A. The size of the molecule. The larger molecule will diffuse more slowly than the smaller molecule. B. The nature of plasma membrane. If the membrane is composed of lipid portion.‚ only lipid soluble molecules can pass through while water molecules
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