Physics Lab Report#8 “Solving Problem Involving Vector Addition” Name: Fei Huo Date performed: November 12‚ 2014 Period 5 Teacher: Mr. Glasel Purpose: The purpose of this lab was to solve problems that involve the vector addition. Introduction: My classmates and I were solving the equations by graphing them and/or to solve them algebraically. Each of the equations had scales and we were to use these scales for each question in graph paper. Some if the questions didn’t need to
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glass rod instead of heating it. 7. Why does the addition of sodium chloride elicit an action potential? Hint: Think about the sodium permeability of the neuron (Figure 3.2e). Because of the addition of chloride. Inhibiting a Nerve Impulse 8. What was the effect of ether on eliciting an action potential? There was no action potential. 9. Does the addition of ether to the nerve cause any permanent alteration in neural response? yes 10. What was the effect of curare on eliciting
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PhysioEx 9.0 Exercise 3 Neurophysiology of Nerve Impulses A C T I V I T Y 1 The Resting Membrane Potential 1. Explain why increasing extracellular K_ reduces the net diffusion of K_ out of the neuron through the K_ leak channels. Increasing the extracellular potassium reduces the concentration gradient‚ and less potassium diffuses out of the neuron and into the cell. 2. Explain why increasing extracellular K_ causes the membrane potential to change to a less negative value.
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Physio-EX Blood Analysis: Computer Simulation Introduction In this lab five blood tests will be performed: hematocrit determination‚ erythrocyte sedimentation rate‚ hemoglobin determination‚ blood typing‚ and total cholesterol determination. A “hematocrit refers to the percentage of red blood cells (RBC’s) in a sample of whole blood. Since the function of red blood cells is the transport of oxygen to the cells of the body‚ the higher the hematocrit‚ the more red blood cells are available to carry
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Activity 1 1. Describe two variables that affect the rate of diffusion. a. There are alot of different variables or factors that can affect the rate of diffusion‚ for example: size of the molecule‚ shape of the molecule‚ concentration gradient‚ charge of the ions‚ temperature‚ environment‚ etc. The rate of the diffusion can increase as diffusion distance increases‚ concentration gradient increases‚ surface area increases‚ temperature increases‚ and many more. 2. Why do you think the urea was not
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ENDOCRINE SYSTEM The endocrine system helps regulate and maintain various body functions by synthesizing (making) and releasing hormones‚ chemical messengers. The endocrine system is composed of glands that release their hormones directly into the bloodstream for chemical signaling of target cells. Endocrine glands do not have a duct system and are called ductless glands. These glands release hormones directly into the blood or lymph. These glands include the pituitary gland‚ the pineal gland
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Name: Exercise 5: Cardiovascular Dynamics: Activity 1: Studying the Effect of Blood Vessel Radius on Blood Flow Rate Lab Report Pre-lab Quiz Results You scored 40% by answering 2 out of 5 questions correctly. 1. Blood flow is measured in You correctly answered: b. ml/min. 2. Which of the following has the greatest effect on blood flow? You correctly answered: a. blood vessel radius 3. Which of the following would not result in a decrease in the blood vessel radius? Your answer : b. plaque
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Through endocrine signaling‚ the signaling molecule or hormone is produced by a gland and discharged into the blood where it travels until it reaches certain blood cells distant from its place of origin on which it exerts its action. This is a long distance communication process. The signaling molecule is mainly of protein origin‚ although there is also a varied range of steroidal hormones. (ENDOCRINE SIGNALLING: Image from University of Kent https://moodle.kent.ac.uk/external/mod/book/view
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Lab Report: Animal Behavioral Diversity Biology 112 Lucas LLona 5-7-13 1) a. Based on background knowledge regarding beta fish‚ I believe that the male beta fish will be the first out of the two specimens to display any aggressive behavior. b. - Pectorals flap at rapid speeds when the beta fish is uncomfortable and appears agitated. - The gill cover expands in size when the beta fish is uncomfortable. - Caudal fin moves quickly when agitated and also determines how quickly the specimen
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Review Sheet Results (1) 1. List the hematocrits for the healthy male (sample 1) and female (sample 2) living in Boston (at sea level) and indicate whether they are normal or whether they indicate anemia or polycythemia. 1. The hematocrit value for the healthy male: 48 2. The hematocrit value for the healthy female: 44 Both values are normal because they are between the normal ranges: for males between 42-52% and for females between 42-47%. 2. Describe the difference between the hematocrits
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