BIOC 385 Exam 2 Questions and Verified Answers
(100% Correct Elaborations)
What property of albumin protein makes it an ideal biomolecule for transporting fatty acids
through the circulatory system?
It contains Phe and Tyr residues that serve as binding sites for fatty acids.
It contains Asp and Glu residues that serve as binding sites for fatty acids.
It is allosterically activated by palmitate binding and inhibited by arachidonate.
It contains many alpha helical regions that are known to bind fatty acids.
It contains Phe and Tyr residues that serve as binding sites for fatty acids.
Partial hydrogenation can result in the formation of_______________.
trans double bonds.
cis double bonds.
ω-3 fatty acids.
ω-6 fatty acids.
trans double bonds.
Pork fat has a melting temperature of 40ºC and flaxseed oil has a melting temperature of -25ºC.
What contributes to this ~65ºC difference in melting temperature? Choose the ONE best answer.
Animals eat high fatty food, whereas plants use photosynthesis in the hot sun, so the melting
temperature differences reflect the lifestyle of the two organisms.
Melting temperature reflects the chemistry and physics of hydrogenated fatty acids compared to
trans fat and polyunsaturated fats, so flaxseed is liquid and pork fat is not.
Pork fat is solid and clumpy, whereas flaxseed oil is liquid, so their melting temperatures reflect
the difference in solids over liquids and the amount of enthalpic energy.
Pork fat contains 40% palmitate and stearate, whereas flaxseed oil is 53% alpha-linolenate, the
difference in average a melting temperature is about 65ºC, so it makes sense.
Pork fat contains 40% palmitate and stearate, whereas flaxseed oil is 53% alpha-linolenate, the
difference in average a melting temperature is about 65ºC, so it makes sense.
Which statement below best describes the glycogen debranching enzyme?
It catalyzes the addition of free glucose to a nonreducing end of glycogen.
It evenly distributes branch points across the glycogen polymer.
,Its product is glucose-1-phosphate.
It is a dual function enzyme with two unique catalytic activities.
It is a dual function enzyme with two unique catalytic activities.
List one feature these two fatty acids have in common and one feature that differentiates them.
common; both are fully saturated, different; stearate as 2 more carbons
common; both are C18, different; oleate has a double bond
common; both are C18, different; stearate is unsaturated
common; both are C16, different; oleate is polyunsaturated
common; both are C18, different; oleate has a double bond
Which particles transport dietary triacylglycerols to adipose tissue for storage?
act as a hormone to regulate glucose levels.
catalyze the formation of UDP-glucose.
enable glycogen to fold properly.
function as the molecular anchor of glycogen particles.
function as the molecular anchor of glycogen particles.
What TWO reasons best explain why fats are the primary energy storage molecule compared to
carbohydrates?
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 fritzhaber. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $17.99. You're not tied to anything after your purchase.
