DPT 712: MOVEMENT OF MOLECULES EXAM QUESTIONS AND ANSWERS VERIFIED BY EXPERTS GRADED A++
0 view 0 purchase
Module
DPT 712
Institution
DPT 712
DPT 712: MOVEMENT OF MOLECULES EXAM QUESTIONS AND ANSWERS VERIFIED BY EXPERTS GRADED A++
solute
substance that is dissolved in a liquid
solvent
substance that dissolves a solute , creating a solution
Solutes and water move from areas of ___________ concentrations to areas of ___________ concen...
substance that dissolves a solute , creating a solution
Solutes and water move from areas of ___________ concentrations to areas of
___________ concentrations. unless they are prevented from following this
gradient
high; low
diffusion
spontaneous net movement of particles down a concentration gradient ultimately
resulting in equal distribution of the particles
driven by thermal energy of the system
what biological molecules move by simple diffusion
oxygen, CO2, many nutrients, ions and small molecules
Why does compartmentalization occur?
because of epithelial layers or membranes that limit or prevent diffusion
Intracellular space =
Extracellular/interstitial space =
, M-, K+, Cl-, Na+;
K+, Cl-, Na+
Where would freely permeable membrane be found?
epithelial lining of the capillaries and alveoli, cellular membranes, membranes of
organelle, blood-brain barrier
Semi-permeable Membrane
selective membrane; allows materials to move across it.
composed of lipids and proteins, in a SPECIFIC orientation
creates and maintains unequal solute concentrations in the compartments
little holes regular the size of molecules that get through
another name for semi=permeable membrane
lipid bilayer
hydrophilic molecules
"water loving", form the external and internal layer
-interact with charged molecules (polar)
-proteins, vitamins, ions, hormones
-molecules have difficulty moving across cell membrane
Hydrophobic
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 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 £7.72. You're not tied to anything after your purchase.
