UAFS physiology Cornell Final Exam Review| Questions with 100% Correct Answers | Verified
2 views 0 purchase
Course
UAFS physiology Cornell
Institution
UAFS Physiology Cornell
ICF - fluid inside the cell
ECF - fluid outside the cell
Ions higher in the ICF - K+ and proteins
Ions higher in the ECF - - Plasma: Na+, Cl- and proteins
- Intersitial fluid: Na+ and ClPhagocytosis - - active mechanism
- From ECF to ICF
- Large Molecule
- creates phagosome and uses pseudopo...
UAFS physiology Cornell Final E xam Review ICF - ✔✔fluid inside the cell ECF - ✔✔fluid outside the cell Ions higher in the ICF - ✔✔K+ and proteins Ions higher in the ECF - ✔✔- Plasma: Na+, Cl - and proteins - Intersitial fluid: Na+ and Cl - Phagocytosis - ✔✔- active mechanism - From ECF to ICF - Large Molecule - creates phagosome and uses pseudopods to "eat" molecules Endocytosis - ✔✔- smaller molecu le - plasma membrane invaginates - some are selective for specific ligand, (receptor mediated endocytosis) Exocytosis - ✔✔- opposite of endocytosis - Triggered by Ca+ - sent out in vesicles Diffusion - ✔✔- passive; high to low concentration - faster w/ s horter distances; decrease distance = increase D.R. - Increase in gradient = increase in D.R. - Increase temp = increase in D.R. - Inversely related to molecular size. - increase in lipids= increase in D.R. facilitated diffusion - ✔✔- uses channels or car rier to get across membrane - Goes down concentration gradients - no energy input ( ex. GLUT transport) Active transport - ✔✔- uses carrier proteins - moves molecules against concentration gradients - Requires energy, either directly or indirectly primary (direct) active transport - ✔✔uses ATP directly for energy Secondary (indirect) active transport - ✔✔uses potential energy stored in concentration of one molecule to push another molecule against i ts gradient What is resting membrane potential - ✔✔-70mV What causes the resting membrane potential? - ✔✔This is when the cell membrane is at rest. During this resting state the nerve cell has a negative electrical potential of about -70 mV. It is the el ectrical disequilibrium between the ECF and ICF Depolarization - ✔✔The process during the action potential when sodium is rushing into the cell causing the interior to become more positive/less negative Repolarization - ✔✔Return of the cell to resting st ate, caused by reentry of potassium into the cell while sodium exits the cell. Hyperpolarization - ✔✔membrane potential becomes more negative
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 PatrickKaylian. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.99. You're not tied to anything after your purchase.
