Review Sheet Results 1. Explain why increasing extracellular K+ reduces the net diffusion of K+ out of the neuron through the K+ leak channels. Your answer: If the extracellular K+ increases then the concentration of intracellular K+ will decrease causing a decrease in the steepness of the concentration gradient and fewer K+ ions would be drawn out. 2. Explain why increasing extracellular K+ causes the membrane potential to change to a less negative value. How well did the results compare
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Human Anatomy & Physiology Version 8.0 Physioex Exercise 8 CHEMICAL AND PHYSICAL PROCESSES OF DIGESTION - ANSWERS Please note: I do not include the charts as you still have to do the experiments and print the data and graphs. Activity 1 What do tubes 2‚ 6‚ and 7 reveal about pH and amylase activity? Hint: What variable was changed in the procedure? a. maximum of amylase is at pH 7.0 (tubes 2 & 5‚ brownish red) and pH 9.0 showed little activity (tubes 6 & 7‚ green) Which pH
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Exam 3 – Review Sheet Be sure you can define‚ explain‚ apply‚ and generate examples all of the concepts listed below. Retrieval Cues- hints that make it easier for us to recall information EX. “Do you remember the word that went with ‘A part of the body’?” “Finger” Influence of Context on Memory and supporting research—Superior retrieval of memories when the environment in which we retrieve information is similar to the environment in which we learned it in. Godden and Baddley- EX. Learn of
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Exercise 9 1. A farmer wanted to find the relationship between the amount of fertilizer used and the yield of corn. He selected seven acres of his land on which he used different amounts of fertilizer to grow corn. The following table gives the amount of fertilizer (in pounds) used and the yield of corn (in bushels)for each of the seven acres. Fertilizer Used (x) 120 80 100 70 88 75 110 Yield of Corn(y) 138 112 129 96 119 104 134 a. Find the least squares regression line. a. Calculate r and r2
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MEMORY / COGNITION TEST REVIEW SHEET Chapter 9 – Memory MEMORY: The persistence of learning over time through the storage and retrieval of information. FLASHBULB MEMORY: A clear memory of an emotionally significant moment or event. Example: 9/11 Terrorist Attacks ENCODING: The processing of information into the memory system. Example: Adding meaning to the information. STORAGE: The retention of encoded information over time. RETRIEVAL: The process of getting information out
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Respiratory Volumes 1. Minute respiratory volume: 7‚500 ml 2. Judging from the trace you generated‚ each inspiration took place over how many seconds? 2 Seconds 3. Each expiration took place over how many seconds? 2 seconds 4. Does the duration of inspiration or expiration vary when you tested/measured the ERV or FVC? Yes Activity 3: Effect of Restricted Air Flow on Respiratory Volumes 1. How does this set of data compare to the data you recorded for Activity 2? The MRV is 3075 and the
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Exercise 2: Skeletal Muscle Physiology: Activity 4: Tetanus in Isolated Skeletal Muscle Lab Report Pre-lab Quiz Results You scored 100% by answering 3 out of 3 questions correctly. 1. Stimulus frequency refers to You correctly answered: b. the rate that stimulating voltage pulses are applied to an isolated whole skeletal muscle. 2. Which of the following distinguishes a state of unfused tetanus from a state of complete (fused) tetanus? You correctly answered: d. Muscle tension increases and decreases
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REVIEW SHEET EXERCISE 6 Cardiovascular Physiology NAME: LAB TIME/DATE: 1. Define each of the following terms: • autorhymicity- The heart is autorhythmic. This means it generates its own rhythmic action potential independent of the nervous system. • sinoatrial node- is the impulse-generating (pacemaker) tissue located in the right atrium of the heart‚ and thus the generator of normal sinus rhythm. • pacemaker cells- are specialized cells that cause involuntary muscles and tissues to
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Natalie Salaverria 01/21/11 LAB EXERCISE I After the first exercise : Simulating Simple diffusion Which Materials diffused from the left beaker to the right beaker? NaCl ‚ Urea ‚ Glucose Which did not ? Albumin Why ? Albumin’s Composition or charge was too great to diffuse through the membrane. After the 2nd activity : Simulating Dialysis What happens to the urea concentration in the left beaker (the Patient)? It diffused to the right beaker Why does this occur? The excess
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Exercise 6: Cardiovascular Physiology Worksheet Assignment Due: Week 6 Electrical Stimulation Activity 1: Direct Heart Stimulation 1. Did you see any change in the trace? I did not see a change in the trace 2. Why or why not? This is because it needs more stimulation 3. Did you see any change in the trace? I did see a change in the trace 4. Why or why not? This is because there is double stimulation. 5. Describe the change you see in the trace. How does it differ from the baseline
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