Exam (elaborations)
BIOL275 Exam 3
- Course
- Institution
Exam of 20 pages for the course ... at ... (BIOL275 Exam 3)
[Show more]
Content preview
Name: Score:41 Multiple choice questions
Term 1 of 41
All of the following are active transporters except
permeases.
bacteriorhodopsin.
P-class pumps.
symporters.
ABC transporters.
Term 2 of 41
Refer to the figures to the right.
Name the common fatty acid and indicate whether the structure is saturated or unsaturated
18:1
C) gap junctions
Unsaturated (1 double bond)
Cis-oleate
Are often toxic to Cells
B) tight junctions
,Term 3 of 41
Which of the following molecules is most likely to cross the cell membrane directly by passive
diffusion?
insulin (a polypeptide)
fructose (a sugar)
Na+
fructose and insulin
a steroid hormone (a hydrocarbon)
Term 4 of 41
Which of the following would you expect to find predominating in the plasma membrane of a
unicellular eukaryotic organism thriving in glacier ice?
20C saturated fatty acids
18C saturated fatty acids
20C fatty acids with 1 double bond
18C fatty acids with 1 double bond
16C fatty acids with 3 double bonds
, Term 5 of 41
Cholesterol is a ________, which ________.
-steroid; is a component of eukaryotic membranes and is the basis for many animal and plant
hormones
-steroid; is the basis for many animal and plant hormones
-fatty acid; functions in energy storage
-terpene; is the basis for many animal and plant vitamins
-steroid; is a component of eukaryotic membranes
steroid; is a component of eukaryotic membranes and is the basis for many animal and
plant hormones
water diffuses through a semipermeable membrane toward a higher solute concentration.
buffers membrane fluidity by increasing fluidity at low temperature and decreasing fluidity
at high temperature.
increases glucose transport into the cell by increasing its concentration gradient across the
plasma membrane.
Term 6 of 41
Saturation can be defined as
A characteristic of all up catalyzed reactions
Inhibition of enzyme function by blocking the active site
Denaturation of an enzyme
Substrate concentration at which velocity reaches one-half maximum velocity
The inability to increase reaction velocity beyond a finite upper limit
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 stuuviaa. 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)
67866 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now