Background: As members of the class Amphibia‚ frogs may live some of their adult lives on land‚ but they must return to water to reproduce. Eggs are laid and fertilized in water. On the outside of the frog’s head are two external nares‚ or nostrils; two tympani‚ or eardrums; and two eyes‚ each of which has three lids. The third lid‚ called the nictitating membrane‚ is transparent. Inside the mouth are two internal nares‚ or openings into the nostrils; two vomerine teeth in the middle of the roof
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eliminating wastes through organs such as the kidney‚ thus the heart delivers and helps maintain nutrient and waste composition throughout the body. The heart‚ like all muscle cells‚ releases ionic calcium when stimulated which binds to troponin which in turn causes tropomyosin to uncover the myosin-actin binding sites on the muscle. Temperature has effects on the metabolism and activity of all cells. Warmer temperatures increase the kinetic energy of molecules in cells‚ providing more energy which
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Dissecting out the gastrocnemius muscle Completely cut the skin around the lower abdomen. Then cut down between the legs to free the skin around one leg from the rest of the skin‚ cut any attachments of the skin to the body. Holding the upper part of the frog firmly in one hand pull the skin down off of the leg. Be careful when pull the skin off around the knee as it is attached more firmly there. Place the frog dorsal side up in the tray and make sure to keep the muscles moist with ringer solution
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2/14/2012 Anatomy and Physiology Muscle Grip Strength Lab Report Introduction: Skeletal muscle is a form of striated muscle tissue existing under the voluntary control of the somatic nervous system (Medscape 1). Skeletal muscle is part of the three big muscle types‚ it is connected to bones by tendons (Medscape 1). Muscle grip strength is significant to an individual because it helps the person know the ability of muscle power and force that they have in their
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necessary to begin a quality Final Lab Report. Utilize this template to complete the Week 3 Outline of the Final Lab Report and ensure that you are providing all of the necessary information and proper format for the assignment. Before you begin‚ please note the following important information: 1. Carefully review the Final Lab Report instructions before you begin this assignment 2. The Final Lab Report should cover all 3 experiments from your Week Two Lab 3. As you plan your final paper‚ think
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Experiment 1 Cyanobacteria Oxygen Production Through Photosynthesis Date Performed: September 2‚ 2014 I. Introduction a. Background Cyanobacteria or blue green algae are renowned for their tolerability and susceptibility even in wide range of environmental conditions‚ a characteristic of many primitive organisms. CNB are believed to be the agents of autotrophic origin of life thus they probably represent the survivors of the earliest photosynthetic plants‚ along with photosynthetic and chemosynthetic
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the axon and guides the synaptic vesicles until it reaches the synapse. This triggers the release of the neurotransmitters stored within the vesicles. Once released‚ the neurotransmitters then bind to receptors of the receiving cell. It would be nearly impossible to have the transportation of vesicles without kinesin to guide it. And without the transportation of these synaptic vesicles to release their neurotransmitters‚ there would be no movement in the cell at all. This experiment is so important
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Lab Report Experiment 1 & 2 CHM-101 Amele Takpara Partner: Jessamyn Dupree ------------------------------------------------- Experiment 1 ------------------------------------------------- (Pre-Lab Questions) 1. In the design of a Bunsen burner‚ explain the purpose of a. the gas control valve The gas control valve regulates the rate at which methane enters the burner. b. and the air vents. The air vents control the rate at which air enters the burner 2. Why is a luminous
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responsible for making the pillbug habitat‚ taking them in and out of the habitat for our experiment‚ setting up the experiment setups for testing‚ and timing the experiment. In my opinion‚ I contributed a lot in my group. I did a majority of the lab proposal‚ and a substantial amount in the lab report. I was always the one getting up to gather our materials and pillbugs from the bins and making sure that our experiment was going as smoothly as intended. From this project‚
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Guide Questions Experiment 1 Calibration of the calorimeter: 1. Give the net ionic thermochemical equation of the reaction used to calibrate the calorimeter. a. Is the reaction endothermic or exothermic? b. Which is the limiting reactant? c. How much (in moles) limiting reactant was used? d. How much heat was generated (or absorbed) by the reaction? 2. Relate the sign of the ΔT to the ΔH of the reaction used for calibration. 3. What is the heat capacity of the calorimeter? Relate
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