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Q1. The basic structural unit of a biomembrane is the phospholipid bilayer. Acetic acid and ethanol are each collected of two carbons, hydrogen and oxygen, and both enter cells by passive diffusion. At pH 7' one is much more membrane permeable than the other' that is more permeable and why? Calculate how the permeability of each is altered when the pH is reduced to 1.0, a value typical of the stomach.
Q2. Suppose that in particular protein made up of 564 amino acids, a lysine residue at position 17 is replaced by asparagine. Would you expect this change to demolish the function of this protein? Explain briefly.
The Board of Directors of the cardiology practice has asked you as the healthcare administrator to draft policy guidelines re this situation for them to consider for the next board meeting. What principles might the administrator use in approachin..
A structural protein may incorporate large amounts of immobilized water as part of its structure. How do protein molecules "freeze" the water in place and make it part of their protein structure?
Predict and explain the effect on GAL1 transcription, in the presence of galactose alone, of the following mutations.
Give thoughtful, researched answers to the following items. Points will be earned for completeness and accuracy. Provide sources in an appropriate citation format.
What are the disadvantage and advantage of each and which commonly applies to hospitality industry. How is this caused by the sympathetic nervous division.
A protein has a molecular mass of 200 kDa as determined by gel filtration (=native molecular weight). When separated by SDS-PAGE (without a reducing agent present) only one polypeptide appeared with a mass corresponding to 100 kDa.
Suppose a person has spinal cord damage at the cervical level. Would this stop the knee-jerk reflex? How would it affect the plantar (Babinski) reflex?
Create a Dichotomous Key using the following Bacteria. You are only allowed to use the characteristics listed in organizing your Dichotomous Key.
Target identification can be technically challenging probably not as random as mutagenesis. What is essential for effective chemical genetics.
A rare genetic disease is discovered. Although only one in a million people are carriers; you consider getting screened. You are told that the test is good; it is 100% sensitive (it is always correct if you are a carrier) and 99.99% specific (it g..
a pea plant with constricted pods is crossed with another constricted pod pea plant. what are the genotypes and phenotypes?
What might be the environmental consequences if a significant amount of surfactant were to get into a pond?
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