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Q. 1. Heart muscle cells have auto rhythmicity meaning that the cells depolarized on their own. What is it about the ion channels in the cells that cause this to happen?
2. What is the function of the pacemaker nodes (SA and AV) and bundle branches in maintaining heart rhythm? Where are each of these structures located. Which one initiates the wave of depolarization across the atria? How does the depolarization wave get from the atria to the ventricles? Be able to explain the series that the each of the above structures is activated during the depolarization wave (such as which is 1st, 2nd, 3rd etc.). What parts of the heart contract as the wave passes them and in what order?
3. What parts of the autonomic nervous system control heart rate and what effect does each have on it?
What is the most likely defect associated with the Ser63 deletion mutant. How would you design an experiment to test your hypothesis using culture cells and the expression construct of wild-type and Ser63 deletion mutant of P0.
Dialysis patients, who will have blood withdrawn, dialyzed, then replaced, are always weighed while they enter the facility and then weighed carefully before they leave. What is the most probable explanation for this requirement.
They isolated bacterium in a pure culture and demonstrated that experimental healthy animals injected with this culture became sick. What other test do researchers require to perform to be absolutely sure that the bacterium is responsible for the dis..
At the end of the measurement period, which group will have produced the greatest volume of urine and which group the minimum? Describe your answer in details.
What color do you guess that the fur of these mice will be? Why with reason?
Biological recognition is significant in many processes explain how the process of recognition occurs while an organism recognizes other members of their own species.
How to write a discussion section for my electroencephalogram (EEG) lab report when all charts and data are already present.
How might you deterine whether the turbidity in your nutrient broth tube was from a mixture of different microbes or from the growth of only one kind of microbe.
Multicellular animals have some mechanism to control cell mass that we do not understand; for in case, salamanders of different ploidies are the same size such that a haploid, a diploid, and a pentaploid organism are about the same size.
What is the most possible explanation for how these proteins find their way to the mitochondria. What is the good range for a heartbeat stroke work in an anaesthetised sheep? Before and after the venous administration of adrenaline.
List and depict at least three prokaryotic cellular features that could be targeted in this way to inhibit or kill a bacterial pathogen.
In some cases the first gene in the linear sequence appears to be transcribed at a much higher rate than the second and subsequent genes (as in many but not all mRNAs contain the sequences encoded by gene 2 and beyond).
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