Exam (elaborations)
Test Bank for Chapter 8 Cell Phys Beckers World of the Cell 9th ed (10th Edition by Jeff Hardin)
- Course
- Institution
Test Bank for Chapter 8 Cell Phys Beckers World of the Cell 9th ed (10th Edition by Jeff Hardin)
[Show more]
Content preview
Test Bank for Chapter 8 Cell PhysBeckers World of the Cell 9th ed (10th
Edition by Jeff Hardin)
Each of the following molecules move across membranes by simple diffusion except
A) oxygen.
B) fatty acids.
C) water.
D) glucose.
E) carbon dioxide - ANSD
One way in which ions are specifically transported into the cell is via
A) gated channels.
B) simple diffusion.
C) carrier (permease) proteins.
D) uniport transporters.
E) ABC transporters. - ANSA
Phosphorylation of glucose following its transport into a cell
A) targets the glucose for transport back out of the cell.
B) decreases glucose transport into the cell by decreasing its concentration gradient across the
plasma membrane.
C) increases glucose transport into the cell by increasing its concentration gradient across the
plasma membrane.
D) converts glucose into a form that can more easily be exported from the cell.
E) maintains a higher level of glucose outside the cell. - ANSC
Bacterial porins transport
A) any hydrophilic molecule regardless of size.
B) hydrophilic molecules smaller than 600 Da.
C) any hydrophobic molecule regardless of size.
D) hydrophobic molecules larger than 600 Da.
E) any molecule regardless of properties or size. - ANSB
Which of the following protein types would you predict is defective in kidney water balance
disorders?
A) aquaporin
B) porin
C) class ATPase
, D) anion exchange protein
E) GLUT - ANSA
Most cells have a negative plasma membrane potential (Vm) because they have
A) equal concentrations of ions on both sides of the membrane.
B) an excess of negatively charged solute molecules inside the cell.
C) an excess of positively charged solute molecules inside the cell.
D) an excess of negatively charged solute molecules outside the cell.
E) an excess of water molecules inside the cell. - ANSB
Water moves across the plasma membrane into or out of a cell by osmosis when
A) there is an equal solute concentration on both sides of the membrane.
B) water diffuses through a semipermeable membrane toward a higher solute concentration.
C) water diffuses through a semipermeable membrane toward a lower solute concentration.
D) a high solute concentration opens an aquaporin channel.
E) ATP hydrolysis drives aquaporin transport. - ANSB
All of the following are true about a partition coefficient except
A) it is the ratio of solubility in an organic solvent to solubility in water.
B) it can be used to predict the probability that an amino acid is part of a transmembrane region
of a protein.
C) it is high for a molecule that readily crosses membranes by simple diffusion.
D) it is the concentration at which the rate of transport is half maximal.
E) it depends on the polarity of the molecule. - ANSD
Which of the following types of transport occur across the erythrocyte membrane?
A) O2 and CO2 passive diffusion
B) aquaporin water transport
C) Cl− bicarbonate ion antiport
D) glucose uniport
E) All of the above are correct. - ANSE
Because the procedure you are using to modify plants requires their cell membranes to be
pulled away from the cell walls by plasmolysis, you place the cells in a(n)
A) acid solution.
B) hypotonic solution.
C) isotonic solution.
D) basic solution.
E) hypertonic solution - ANSE
Knowing the ion concentrations on both sides of the plasma membrane makes it possible to
calculate the membrane potential (Vm), because at equilibrium
A) the Faraday constant is 0.
B) ΔG is 1.
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 AllLegitExams. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
77254 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now