BIO 114 Chapter 5 Review Questions and Correct Answers
7 views 0 purchase
Course
BIO 114
Institution
BIO 114
Fluid Mosaic Model Used to describe a membranes structure - a patchwork of diverse protein molecules embedded in a phospholipid bilayer
Diffusion Tendency of particles to spread out evenly in an available space
Concentration Gradient Particles move from an area of more concentrated particles to a...
BIO 114 Chapter 5 Review Questions
and Correct Answers
Fluid Mosaic Model ✅Used to describe a membranes structure
- a patchwork of diverse protein molecules embedded in a phospholipid bilayer
Diffusion ✅Tendency of particles to spread out evenly in an available space
Concentration Gradient ✅Particles move from an area of more concentrated particles
to an area where they are less concentrated
Passive Transport ✅Does not require energy to diffuse across a cell membrane
Osmosis ✅The diffusion of water across a selectively permeable membrane
Tonicity ✅The ability of a surrounding solution to cause a cell to gain or lose water
Isotonic ✅The concentration of solute is the same on both sides of a membrane
- the cell volume will not change
Hypotonic ✅The solute concentration is lower outside the cell
- water molecules move into the cell
- the cell will expand and may burst
Hypertonic ✅The solute concentration is higher outside the cell
- water molecules move out of the cell
- the cell will shrink
Osmoregulation ✅The control of water balance
Facilitated Diffusion ✅The movement of polar and charged substances across a
membrane with the help of specific transport proteins
- no energy
- relies on concentration gradient
Aquaporin ✅Protein channel that allows for rapid diffusion of water in and out of
certain cells
Active Transport ✅A cell must expend energy (ATP) to move a solute against its
concentration gradient
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 twishfrancis. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $8.99. You're not tied to anything after your purchase.