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Exercise 1: Properties of a Finger Twitch.Question:How does the contraction time of a typical finger twitch compare to the relaxation time?
Exercise 2: The Effect of Weight on Finger Twitches.Questions:1- Discuss how do the amplitudes of the finger twitches with different weights compare to each other?2- Explain why did the amount of work decrease when heavier weights were used?3- Is there any correlation between the weight moved and the contraction or relaxation times of the twitches?
Exercise 3: Stimulus-Response.Questions:1- At which stimulus current did the finger first show a twitch? Why didn't a finger twitch occur at a lower stimulus current?2- How does the finger twitch amplitude increase when the stimulus current is increased?3- Is there a stimulus current at which the amplitude of the finger twitch is maximized?4- Above a certain stimulus current, the amplitude of the finger twitch no longer increases. Why does this happen?
Exercise 4: Summation and Tetanus.Questions:1- At which frequency did summation first appear? At which frequencies does incomplete tetanus occur? At which frequency did complete tetanus first occur?2- How much greater than the amplitude of a single twitch is the amplitude of the tallest twitch during summation or incomplete tetanus?3- How much greater than the amplitude of a single twitch is the amplitude of complete tetanus?4- After the stimulator is turned off, the relaxation time after tetanus is much longer than relaxation time after a single twitch. Why?5- What is the name for the decrease in the level of constant tension that occurs during tetanus?
Illustrate the metaphase cell of this culture showing predicted distribution of radioactivity on the autoradiograph.
Analyze the contributions of select scientists from the Greek and Roman period. Explain the Arab influence on the development of anatomy and physiology.
Plants lacking this enzyme grow slowly and are often light green or white in colour. Provide explanations with support for both these plants' slow growth rates and light-green or white appearance.
For each of amino acids, is the side chain hydrophobic, polar but uncharged, positively charged, or negatively charged at physiological pH?
When William was helping victims following a devastating earthquake in a region that was not prepared to swiftly set up adequate temporary shelter,
If some cell-surface receptors, including cytokine receptors and notch, can rapidly signal to the nucleus by activating latent transcription regulators at the plasma membrane, why do most cell-surface receptors use long, indirect signalling cascades ..
Also glucose technically doesn't have a carbonyl functional group then because it is broken when the ring structure is formed? Is it a random chance that either alpha or beta glucose is formed.
Here are the distances between adjacent pairs of loci. A map distance of fifty = independent assortment. Please map genes giving distances between adjacent pairs of loci.
Nucleus, Mitochondria, How do receptors interact with hormones? How do the hormones interact with each Other? How do the secondary messengers work Again? Hormone binds to G protein what is the Hypothalamus.
A plant increased from one of Mendel's yellow pea is selfed. Three progeny peas from this are obtained and they are all green. Is the original plant homozygous or heterozygous.
Each of the following statements Explain a type of column chromatography . Sort the statements to the type of chromatography they describe. If statement can explain all of the types, place that statement in the category.
The phosphorylation of ADP to form ATP stores approximately 7.3 kcal per mole o ATP. What is the approximate efficiency of cellular respiration for a "mutant" organism that produces only 29 mole of ATP for every mole of glucose oxidized, rather than ..
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