5 Written Questions

1. Eukaryotic and Prokaryotic
2. Myosin
3. There is signal recognition particle (SRP) that briefly attaches to it, takes it to wherever it needs to be, and then detaches to allow the signal sequence to be inserted into the ER transcolon and be clipped once protein synthesis is complete.
4. By "transport vesicles." These are little sacks that carry proteins or whatever. They pinch off one membrane, move to another, and fuse to the other membrane.
5. The other, intermediate-size, kind of tubular structure of cytoskeleton.

5 Matching Questions

1. How are proteins sorted?
2. What are actin filaments composed of?
3. What is organize cytosol (three parts)?
4. How are microtubules not static?
5. What are the organelles that a eukaryotic cell has (that we are studying)?

1. a Nucleus, Mitochondria, Secretory/Endocytic organelles
2. b As they are taken through secretory pathway.
3. c Actin protein monomers
4. d Dynamic instability
5. e Define center of cell, define cell polarity, and determine position of organelles

5 Multiple Choice Questions

1. The addition of a sugar (carbohydrate) onto both protein and membrane
   1. What is lamellipodium?
   2. What is the cytoskeleton?
   3. What is glycosylation?
   4. What is a lumen?
2. Ribosomes are attached to it
   1. What is the transcolon?
   2. What is a lumen?
   3. Why is rough ER rough?
   4. What is glycosylation?
3. Because RNA contains instructions to do so (before synthesizing the protein it is assigned to make, ribosome has to bind to the ER.
   1. What is the cytoskeleton?
   2. Why is rough ER rough?
   3. How are proteins sorted?
   4. Why are ribosomes attached to ER?
4. Yes, unless RNA of protein has "signal sequence"
   1. Is the RNA of membrane proteins and secreted proteins the same?
   2. Is the RNA of membrane proteins and secreted proteins translated normally?
   3. Do endocytic pathways and secretory pathways intercect?
   4. What are examples of Secretory/Endocytic organelles?
5. Simultaneous polymerization and depolymerization of different microtubules within same population at steady state
   1. What drives amoeboid motility?
   2. What is glycosylation?
   3. What is lamellipodium?
   4. What is dynamic instability?

5 True/False Questions

1. What are the other two tubular structures besides "actin filaments"? → Intermediate filaments and microtubules

   True        False

2. What happens if protein doenst have "signal sequence"? → Translation of protein stops until ribosome docks on ER. Once docked, the protein is "extruded" into ER cotranslationally (inserted). Protein then folds in ER and moves to Golgi Apparatus, which addresses it to its final destination.

   True        False

3. What's special about intermediate filaments? → none

   True        False

4. What motors operate on intermediate filaments? → Skin, muscle, hair/nails

   True        False

5. What are microtubules' motors? → Kinesin and dynein

   True        False