Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
1. As a Nursing student in Advanced Human Anatomy, you were able to observe a total hip replacement. While the O.R. personnel where prepping the patient for the surgical procedure, the anesthesiologist assumed (rightly so!) that you had some physiology background. As such, she launched into the following procedural explanation: The patient will need to be intubated, therefore he will be given a single dose of the neuromuscular blocking agent, succinylcholine to provide muscular relaxation during the surgery and to facilitate the insertion of the endotracheal tube. The anesthesiologist asked you the following:
a) Beginning with depolarization at the neuromuscular junction, describe the normal sequence of events which lead to muscle contraction. (10)
b) What prevents acetylcholine (ACh) from accumulating in the neuromuscular junction and causing a sustained contraction in a normal individual? (3)
c) Succinylcholine acts as a depolarizing agent that prevents repolarization of the nerve. Therefore, no further ACh is released until the drug is cleared. Name another site within the neuromuscular junction that might be affected to prevent muscle contraction. (Hint: curare acts by this mechanism) (2)
Determine which of the following statements is accurate regarding the evolution of drug resistance in a virus?
A single nucleotide addition given through a single nucleotide deletion approximately 20 bp apart in the DNA causes a change in the protein sequence from
G3-15ml frozen bacterial pellet was added to the breaking buffer and a freeze-thaw procedure mixing the two solutions through sucking up the mixture up and down in the vial was performed.
Think about the two linked traits in a population in which half of the individuals are double heterozygotes with genotype AB/ab and the other half are double homozygotes.
Modern theory suggests that the early pre-life atmosphere on Earth was a reducing one. Why is it believed that oxygen was not present as life formed on Earth.
A newspaper headline reported Algal Bloom Kills Fish. As you read, you find that the algae did not produce toxins. Describe what actually caused fish death, given that the algae are not toxic?
Two protein kinases, PK1 and PK2, work sequentially in intracellular signaling pathway. You construct cells that contain inactivating mutations in the genes that encode either PK1 or PK2
Explain the differences between eukaryotic and prokaroytic cells. Include in your discussion three phenotypic systems used to classify microbes.
Examine the major stages of sea urchin development with reference to your series of detailed drawings and observational notes. How did the embryonic cells compare in size with the original gamete cells? State reasons such a difference may exist.
What is the cellular tropism of HIV and does it change during the course of an infection? Which cellular receptors confer the preference for infection of certain cell-types?
Assume you have found a new Xenopus gene that codes for a RNA binding protein. You are not sure what its function is but you are interested in finding out as much as you can.
In the offspring resulting from an F1 testcross, what percentage of recombinant phenotypes is expected if the genes under study are independently assorting?
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd