Biochemistry of Muscle Contraction Fred P. Guillergan M.D.‚ FPCP Outline histology and biochemistry of muscles (Striated & smooth) – Myosin – Actin‚ Tropomyosin‚ Troponin – Accessory proteins of muscles Biochemical events in muscle contraction Calcium‚ Ca2+-binding proteins and Ca2+ channels in muscle contraction Biochemistry of Cardiac & Smooth muscle contraction Energetics of muscle contraction ☻Able to understand the normal anatomy and physiology of different types of muscles
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Exercise 3: Neurophysiology of Nerve Impulses: Activity 9: The Action Potential: Putting It All Together Lab Report Pre-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly. 1. Sensory neurons respond to an appropriate sensory stimulus with a change in membrane potential that is You correctly answered: b. graded with the stimulus intensity. 2. If the depolarization that reaches the axon is large and suprathreshold‚ the result in the axon is You correctly answered:
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Temperature and Enzyme Activity Aim: To investigate the effect of temperature on enzyme activity Hypothesis: As the temperature deviates from 40°C the activity will lower Equipment: – Chemicals: – Milk – Junket tablets – Hot water – Ice – Test tubes – Stopwatch – Measuring cylinder Risk Assessment: |Hazard |Risk |Prevention | |Hot Water
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Locomotor activity The Locomotor activity (Pákáski and Kálmán‚ 2008) refers to the movement of spontaneous locomotor and exploratory activity in rodents. LMA is a simple performed measurement of behavior to detect the effects of drugs‚ genetic manipulation‚ etc.‚ on motor function by measuring horizontal‚ vertical and stereotyped behavior in rodents. Several measures of locomotor activity in rats‚ including the distance covered‚ movement time and speed of progression. This test is sensitive to
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acetylcholine‚ adrenaline and atropine‚ and increased frequency of stimulus. Regarding Figure 1‚ the regular heartbeat and contraction force of the toad was identified to demonstrate the difference between atrial contractions and ventricular contractions in a normal environment. In cardiac‚ skeletal‚ and some smooth muscle tissue‚ contraction occurs through a spectacle known as excitation contraction coupling (Freeman et al.‚ 2014). This process converts electrical stimulus from the neurons into a mechanical
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The Determination of the Effect of pH on Amylase Activity Grace Chung Abstract: Amylase is an important enzyme in the human body as it allows for the consumption of starch by breaking the polysaccharide down into maltose units. All enzymes‚ including amylase‚ function best at a certain optimal pH. Therefore‚ in this experiment‚ the effect of different pHs on the reaction rate of amylase is studied. It was hypothesized that the amylase-starch reaction would proceed fastest at a pH closest to
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LABORATORY REPORT Activity 11: Homeostatic Imbalances of Thyroid Function Name: Instructor: Date: PREDICTIONS 1. TSH levels in patients with primary hypothyroidism are: 2. Thyroxine (T4) levels in patients with primary hypothyroidism are: 3. TSH levels in patients with secondary hypothyroidism are: 4. Thyroxine (T4) levels in patients with secondary hypothyroidism are: 5. TSH levels in patients with hyperthyroidism are: 6. Thyroxine (T4) levels in patients with hyperthyroidism are:
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Discussion: In this experiment a ketone‚ 9-fluorenone is reduced to and alcohol. The are two possible ways by which this reduction can occur. One is by a catalytic hydrogenation‚ this uses a catalyst such as palladium or nickel‚ hydrogen gas‚ and heat/pressure. This can reduced an alkane to alkene. This catalytic process is preferred in industrial practices because the cost is low in the long run and more importantly there is little to no waste expense. However‚ hydrogen gas is dangerous due to
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Fitness‚ and Nutrition A Muscle Contraction Muscle Contraction is part of an organ in the body that is tensive. It may have a process of tensions that may be developed with muscle tissues. Contraction can be a meaning of shortening or long. Muscle Contraction can also produce a muscle cell that is for movement of the body. Myosin and Actin is an interaction protein to Muscle Contraction‚ it can be changed by shape but not by volume. Skeletal Muscle contraction is produce by heat. The muscles may
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Activity 8-9: Evaluate an acceptable use policy. Learn whether the organization where you work or attend school has an acceptable computer use policy for employees or students. Make a list of activities that are permitted and those that are not permitted. Identify on your list those activities that are illegal and those that are not permitted according to organizational policy. Compare your organization’s computer use policy with the University of Oregon’s policy referenced in the chapter. Describe
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