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Question 1: Explain how the presence of formed particles (i.e. red cells) in blood makes its apparent viscosity around four times that of plasma. Explain also why this apparent viscosity should depend on flow rate.
Question 2: In order to prepare a plasma sample, whole bood is centrifuged at 1200 rpm (20 revolutions per second). Given that the centrifugal acceleration is given by rω2 (ω= 2πf) and that the equivalent radius r is 10 cm, estimate how long blood samples should be centrifuged to ensure that the red blood cells will have packed down to the bottom of tubes in which the height of fluid is 5 cm. (Assume that the red blood cells obey Stoke's law).
Question 3: Explain some of the problems in measuring whole blood viscosity and why some methods are more reliable than others.
In maize, a dominant allele (A) is essential for seed color as opposed to colorless (a). Another gene has a recessive allele (w) which results in waxy starch, as opposed to normal starch (W).
Which 2 amino acids donate amino groups to other compounds for nitrogen metabolism? What citric acid cycle intermediate can be converted to aspartic acid upon acceptance of an amino group.define the 2 nonstandard amino acids in the urea cycle.
Many enzymes used by molecular biologists were isolated from the bacterium Escherichia coli, which is an inhabitant of the human gut. Most of these enzymes are used at a temperature of 37 degrees Celsius.
Granulation tissue involve all the following except.
What methods and techniques could you use to monitor and evaluate the success of a restoration project?
If you increase or decrease the pH value in an experiment then what does that do to the optimum temperature at which the enzyme performs best? Does it change it or will it stay the same?
Relationship between reproductive rate and pattern of survival. however where would you have to place a pressure measuring device to get the true blood pressure.
You just harvested either a BM or PB sample and found very few metaphases under the phase-contrast microscope. What might be the possible reason in terms of specimen handling, culture setup, harvesting, and slide preparation?
Describe the activation-inhibition crosstalk principle between skin tissues in the formation of new hair and the development of psoriasis.
A somatic cell of a given plant species contains threebillion base pairs of nuclear DNA and 12 functional centromeres when observed at the conclusion of stage G2 of the cell cycle.
Create a Dichotomous Key using the following Bacteria. You are only allowed to use the characteristics listed in organizing your Dichotomous Key.
In the shotgun approach to whole-genome sequencing, random DNA fragments of a chromosome are sequenced. The fragment sequences are then assembled into a continuous sequence.
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