BRS CELL PHYSIOLOGY EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED LATEST UPDATE
3 views 0 purchase
Course
BRS PHYSIOLOGY
Institution
BRS PHYSIOLOGY
BRS CELL PHYSIOLOGY EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED LATEST UPDATE
1. Which of the following characteristics is shared by simple and facilitated diffusion of glucose?
(A) Occurs down an electrochemical gradient
2. During the upstroke of the nerve action potential
th...
brs cell physiology exam questions and answers wit
Written for
BRS PHYSIOLOGY
All documents for this subject (26)
Seller
Follow
AcademicSuperScores
Reviews received
Content preview
BRS CELL PHYSIOLOGY EXAM QUESTIONS AND
ANSWERS WITH COMPLETE SOLUTIONS VERIFIED
LATEST UPDATE
1. Which of the following characteristics is shared by simple and facilitated
diffusion of glucose?
(A) Occurs down an electrochemical gradient
2. During the upstroke of the nerve action potential
there is net inward current and the cell interior becomes less negative
3. Solutions A and B are separated by a semipermeable membrane that is perme-
able to K+, but not to Cl-. Solution A is 100 mM KCl, and solution B is 1 mM KCl.
Which of the following statements about solution A and solution B is true?
K+ will diffuse from solution A to solution B until a membrane potential develops with
solution A negative with respect to solution B 4.
4. The correct temporal sequence for events at the neuromuscular junction is
uptake of Ca2+ into the presynaptic ter- minal; release of acetylcholine (ACh);
depolarization of the muscle end
5. Which characteristic or component is shared by skeletal muscle and smooth
muscle?
Elevation of intracellular [Ca2+] for excitation-contraction coupling
, 6. Repeated stimulation of a skeletal muscle fiber causes a sustained contraction
(tetanus). Accumulation of which solute in intracellular fluid is responsible for the
tetanus?
Ca2+
7. Solutions A and B are separated by a mem- brane that is permeable to Ca2+
and imper- meable to Cl-. Solution A contains 10 mM CaCl2, and solution B
contains 1 mM CaCl2. Assuming that 2.3 RT/F = 60 mV, Ca2+ will be at
electrochemical equilibrium when
solution A is -30 mV
8. A 42-year-old man with myasthenia gravis notes increased muscle strength
when he is treated with an acetylcholinesterase (AChE) inhibitor. The basis for
his improvement is is increased
levels of ACh at the muscle end plates
9. In a hospital error, a 60-year-old woman is infused with large volumes of a
solution that causes lysis of her red blood cells (RBCs). The solution was most
likely
300 mM urea (or hypotonic urea)
10. During a nerve action potential, a stim- ulus is delivered as indicated by the
arrow shown in the following figure. In response to the stimulus, a second action
potential
will not occur
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller AcademicSuperScores. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.49. You're not tied to anything after your purchase.
