REPORT Activity 4: Generation of Action Potentials Name: Instructor: Date: PREDICTIONS 1. Exceeding the threshold depolarization at the trigger zone DECREASES the likelihood of generation of action potential. 2. Action potential amplitude: DOES NOT CHANGE with distance 3. Increasing frequency of stimulation to the trigger zone: DOES NOT increase the production of action potentials. MATERIALS AND METHODS Experiment 1: Effect of Stimulus Strength on Action Potential Generation 1. Dependent
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1. a. The action potential changes the membrane potential from -70 mV (resting) to +30 mV and back again to the resting membrane potential. b. This results from a change in membrane permeability first to Na then to K due to the opening of what type of ion channels? Voltage gated channels 2. a. Where is the density of voltage-gated Na+ channels the greatest? Axon hillock b. What areas of the neuron generate signals that open these voltage-gated channels? Dendrites and the cell body c. Opening
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Unit 1 – Internet Based Case Studies. Activity 1: Beyond Disability and Train World Compare and contrast the features (characteristics) of these two small businesses. The differences between the two business would be that Train World is out to make a profit whereas the aims of a non for profit business such as Beyond Disability is to give something positive back to the community Identify the objectives of each business. The main objectives of Train World might be for a personal reason
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that it helps potential candidates to know what is expected of them and how they will be evaluated within the interview process. With job descriptions it can be of great value to employers as it helps them to relate potential candidates back to the job role and see if they fit well with the description of the ideal candidate they are looking for. Job descriptions are very useful for both Tesco and the potential candidates who are applying for the vacancy as it lists all the activities which will need
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Speech-Related Activity: 1-minute Speeches Aims: Practice quick analytical thinking‚ expression of opinions Level: This works best with more advanced students‚ and in smaller groups. Materials: Pre-made topic slips‚ a clock or watch for keeping time. Roles: Each speech requires a speaker and a timekeeper. Procedure: The student to perform the speech randomly selects a faced-down strip of paper containing a topic. The student has a short period of time (3 – 5 seconds)
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Chemistry 2: Organic and Inorganic Chemistry Activity 1 PROPERTIES OF ORGANIC COMPOUNDS (Sugar) Rainbow Density Column Introduction As a chemical term‚ “sugar” usually refers to all carbohydrates of the general formula Cn(H 2O)n‚ an organic compound. This exercise is focus on sugar as an organic compound and its properties. Objectives: 1. To identify the properties of organic compound - sugar. 2. To observe some physical properties and changes on an organic compound during the actual conduct of
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chapter. Activity Outcomes: Student will learn how to write Java programs to perform simple calculations‚ they will use Scanner class to obtain input from the console‚ they will know how to use identifiers to name variables‚ constants‚ methods‚ and classes. The use of constants ‚ Java primitive
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Reflexes Laboratory Activity (12 points) 1. Amy has numbness of her pinky‚ ring finger‚ and medial surface of her right arm. After neurological testing‚ it is determined that she has a compressed spinal nerve on the right side. a. Which spinal nerve (what level) is affected? The level is C5-T1 cervical nerves. The specific spinal nerve would belong to the brachial plexus‚ the ulnar nerve. b. How did you determine/decide it was this level? The ulnar nerve branches off of the medial cord‚ which is
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Nick Walker Date: 11/05/2015 Introduction: The heart goes through a cardiac cycle in order to pump blood throughout the body. This cycle is started by electrical activity that can be measured by an electrocardiogram. As the heart contracts‚ it pumps blood into the next section of the cardiac system. The electrical activity of the ventricles is shown as the QRS complex in an electrocardiogram. This electrical signal occurs before the mechanical action of the ventricles contracting (called ventricular
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kinetic and potential energy. Kinetic energy is the energy a moving object has because of its motion. The kinetic energy of a moving object depends on the object’s mass and its speed. The kinetic energy of a moving object can be calculated from this equation: Kinetic energy (in joules) = ½ mass (in kg) x [speed (in m/s)]² KE= ½ mv² In this equation ^‚ the symbol v represents speed. Example Find the kinetic energy of the ball having mass 0‚5 kg and velocity 10m/s. Ek=1/2mv² Ek=1/2.0‚ 5
Free Energy Potential energy Kinetic energy