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Q1. A red blood cell must squeeze through narrow blood capillaries without rupturing its membrane. The strength and flexibility of its plasma membrane depends on the dense cytoskeletal network that consists mainly of actin and spectrin molecules. A blood sample was analyzed to measure the intracellular actin concentration. Out of 10^10 red blood cells counted, 1 mg of actin was purified. Estimate the estimated millimolar concentration of actin in a red blood cell (the average volume of a red blood cell is 100 femtolitres and the actin coding DNA sequence is 1131 base pairs long). Calculations must be made assuming that the minimum significant number has four significant digits.
Q2. If all of phosphorus in a 3.00 gram sample of MgNH4PO4 is extracted and used to make a diphosphorus pentaoxide, what mass of P2O5 could be produced?
If repressor tetramer uses only two of its subunits to bind to an operator sequence, why is tetramer formation so important to the control of lac operon gene expression.
What advantages do the O-Scale System and the Canadian Physical Activity, Fitness and Lifestyle Approach-Health Body Composition Assessment procedure has in evaluation to percent body fat predictions from skin folded measurements, when used in indivi..
Describe how the cell derives additional energy by switching . What was the key factor that determined this change.
Joe Average has just been frightened by a very loud noise as he was taking a very difficult physiology exam. In response, his adrenal glands have released a large amount of adrenaline into his circulation. Which of the effects would you expect to ..
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.
Distinguish between mechanical advantages and disadvantages in lever systems and find out which kind of lever the doctor was using to test quadriceps muscle.
What genotypic and phenotypic proportions are expected in F2. Six platyfish with dissimilar tail spotting patterns live in eastern Mexico. Five of them can interbreed and produce fertile offspring. One of them cannot interbreed with the other five. W..
No structures needed but show all the substrates involved in each reaction and the name of the enzyme. Changed mechanism of the transmission of infectious bacterial diseases with examples.
It is a very curcial concept to understand how the immune response is mounted against viruses, bacteria, protozoans and helminthes. For an effective immune response, both innate and adaptive immunity should work together.
Sort the statements into appropriate bins depending on which type of learning they explain. What is her anatomical dead space volume.
With these anatomical features in mind, do research to discover an angiosperm species that has structural modifications to leaves, stems, roots, or flowers that result in adaptive functions. For in case, a California Barrel Cactus has spines in place..
Propose how you may consume the recommended number of serving from each group in the future. Describe what a very low urea clearance indicates for this patient.
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