Exam (elaborations)
BCH EXAM 2 questions with verified answers updated
- Course
- Institution
BCH EXAM 2 questions with verified answers updated
[Show more]
Content preview
BCH EXAM 2What is the primary storage form of fatty acids? - correct answer ✔✔D) triglycerides
A pore that simultaneously transports two different molecules in the same direction is called a(n) -
correct answer ✔✔B) symporter
Which of the following may undergo transverse diffusion within the lipid bilayer? - correct answer ✔✔A)
membrane lipids
In which type of reversible inhibition does binding substrate facilitate binding of the inhibitor? - correct
answer ✔✔C) uncompetitive
Which of the following is a ligand of the β2-adrenergic receptor? - correct answer ✔✔C) norepinephrine
Which of the following curves shows the appropriate relationship between [S] and time? - correct
answer ✔✔B) (b) Slow negative slope
ADP binds to platelets in order to intiate the activation process. Two binding sites were identified on
platelets, one with a Kd of 350 nM and one with a Kd of 7.9 µM. Which of these is the low-affinity
binding site? - correct answer ✔✔B) The binding site with a Kd of 7.9 µM is the low affinity site
What type of chemical species can participate in catalysis by binding substrates to orient them properly,
by undergoing reversible changes in oxidation state, and by stabilizing negative charges: - correct answer
✔✔A) transition metal cations
G proteins: - correct answer ✔✔A) consist of three subunits, Gα, Gβ, and Gγ.
Which of the following would represent the reaction coordinate for a slow reaction? - correct answer
✔✔B) B Big Hump
, The rate constant associated with the reaction below would be
A + B --> C - correct answer ✔✔C) Second order
Nerve cells contain high levels of _____ which is a derivative of _____. - correct answer ✔✔D)
sphingomyelin; sphingosine
How does the addition of an enzyme to a chemical reaction affect the activation energy of the reaction?
- correct answer ✔✔B) Decreases it
Hydrolysis of ATP by the Na,K-ATPase moves _____ while dephosphorylation moves _____. - correct
answer ✔✔A) 3 Na+; 2 K+
What is the ΔG for transport of glutamate from the outside of the cell, where the concentration of 0.1
mM,
to the inside of the cell, where the concentration is 10 mM? Assume the cell potential is -70 mV and the
temperature is 37oC. - correct answer ✔✔D) +18.6 kJ/mol
Small mammalian hibernators can withstand body temperatures of 0oC to 5oC without injury. However,
the body fats of most mammls have melting temperatures of approximately 25oC. Predict how the
composition of the body fat of hibernators might differ from that of their nonhibernating cousins. -
correct answer ✔✔A) Hibernators will contain a higher percentage of polyunsaturated fatty acids.
Which of the following is NOT a way in which biological catalysts differ from nonbiological catalysts? -
correct answer ✔✔A) Only biological catalysts are not permanently altered or consumed as a result of
the reaction.
Voltage-gated channels are more likely to be composed of - correct answer ✔✔A) transmembrane α
helices.
Kinetic studies are carried out for a Michaelis-Menten enzyme at a specific concentration of enzyme.
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 Sakayobako30. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
62890 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now