Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Cell Bio- Quiz 2
study for final
| Question | Answer |
|---|---|
| Which statement about membrane lipids is FALSE ? Phospholipids w/unsaturated tails make bilayer more fluid. Saturated phospholipid tails pack more tightly than unsaturated tails. Phospholipid tails in membrane can interact w/sterols. | An increase in cholesterol molecules increases the permeability of the plasma membrane. |
| What is the role of the nuclear localization sequence in a nuclear protein? | It is bound by a receptor in the cytoplasm that directs the nuclear protein to the nuclear pore. |
| Why are glycolipids found on the extracellular, but not the cytoplasmic, surface of the plasma membrane? | The enzymes that add the sugar groups are confined to the inside of the endoplasmic reticulum and the Golgi apparatus. |
| Newly made phospholipids are synthesized and incorporated into cellular membranes where? | Synthesis occurs on the cytosolic face of the ER |
| A class of proteins that function in the ER as a “quality control” for protein folding are: | Chaperones |
| Signal sequence found in a secreted eucaryotic protein is recognized by the _ which pauses translation by ribosome until it's docked on _ membrane where nascent polypeptide can be translocated into the lumen of that compartment via translocation channel. | Signal Recognition Particle (SRP); Endoplasmic Reticulum (ER) |
Created by:
Ash T.
Popular Biology sets