Microtubules are important for transporting cargo in nerve cell axons, as diagrammed in Figure Q17- 33. Notice that the two types of cargo are traveling in opposite directions. Which of the following statements is likely to be false? cell body microtubule axon Figure Q17-33 inward transport axon terminal outward transport The black cargo and the gray cargo are moving along microtubules of opposite polarity. The black cargo moving toward the axon terminal contains a domain that specifically interacts with the tail domain of a particular kind of motor. The black cargo and the gray cargo require ATP hydrolysis for their motion. The gray cargo is attached to dynein.

Microtubules are important for transporting cargo in nerve cell axons, as diagrammed in Figure Q17- 33. Notice that the two types of cargo are traveling in opposite directions. Which of the following statements is likely to be false? cell body microtubule axon Figure Q17-33 inward transport axon terminal outward transport The black cargo and the gray cargo are moving along microtubules of opposite polarity. The black cargo moving toward the axon terminal contains a domain that specifically interacts with the tail domain of a particular kind of motor. The black cargo and the gray cargo require ATP hydrolysis for their motion. The gray cargo is attached to dynein.

Biochemistry

6th Edition

ISBN:9781305577206

Author:Reginald H. Garrett, Charles M. Grisham

Publisher:Reginald H. Garrett, Charles M. Grisham

Chapter31: Completing The Protein Life Cycle: Folding, Processing, And Degradation

Section: Chapter Questions

Problem 9P

See similar textbooks

Similar questions

Given the highly complex lipidcomposition of cell membranes,what are the variations withindifferent organelle membranes in ananimal cell? What are the functionalconsequences of these differences,and what are the roles of the minorlipid species?
You are studying the binding of proteins to thecytoplasmic face of cultured neuroblastoma cells andhave found a method that gives a good yield of inside-outvesicles from the plasma membrane. Unfortunately, yourpreparations are contaminated with variable amounts ofright-side-out vesicles. Nothing you have tried avoids thisproblem. A friend suggests that you pass your vesicles overan affinity column made of lectin coupled to solid beads.What is the point of your friend’s suggestion?
Vesicle transport occurs between the ER and the Golgi in bothdirections. Let’s suppose a researcher added a drug to cells thatinhibited vesicle transport from the Golgi to the ER but did not affectvesicle transport from the ER to the Golgi. If you observed cellsmicroscopically after the drug was added, what would you expect to seehappen over the course of 1 hour?a. The ER would get smaller, and the Golgi would get larger.b. The ER would get larger, and the Golgi would get smaller.c. The ER and Golgi would stay the same size.d. Both the ER and Golgi would get larger.e. Both the ER and Golgi would get smaller
Comparing cells synthesizing secretory proteins and cells secreting steroid hormones, the cells synthesizing the steroid hormones have: A) more rough ER. B) more smooth ER C) equal amounts of smooth and rough ER D) equal amounts of smooth and rough ER, but more lysosomes. E) equal amounts of smooth and rough ER, but fewer lysosomes.
Various types of vesicle coats have been implicated in membrane traffic pathways suchas endocytosis, export from the ER to the Golgi, and transport between Golgicisternae. But so far, no coat has been identified for the secretory vesicles that carrymaterial from the Golgi to the plasma membrane. Do you think such a coat is likely toexist? Justify your answer.
Various types of vesicle coats have been implicated in membrane traffic pathways such as endocytosis, export from the ER to the Golgi, and transport between Golgi cisternae. But so far, no coat has been identified for the secretory vesicles that carry material from the Golgi to the plasma membrane. Do you think such a coat is likely to exist?
Many of the cell’s hydrolytic enzymes are located in the lysosome, where the pH is ∼5. What would you expect to be the optimum pH for these enzymes, and why would this protect the rest of the cell from the destructive power of these enzymes upon the accidental rupture of a lysosome?
REEP family proteins act as wedges to promote bending of the membrane true or false
List three mediator proteins that move phospholipid molecules from one side of a membrane to the other. Why arethese proteins required?
Suppose calcium ion is maintained within an organelle at a concentration 1000 times greater than outside the organelle (T = 37 °C). Assuming the membrane is permeable to Ca2+, what is the contribution of Ca2+ to the membrane potential? Which side of the organelle membrane is positive, and which is negative?
Since prokaryotes don't have microtubules, how does intracellular movement occur? For an example, how do proteins move to their designaed area within a prokaryote? Also, since they do not have a golgi apparatus, how are proteins processed and distrubuted thorughout the cell? Is the DNA different in prokaryotes that give it different instructions than what you would see in eukaryotes? Please help me understand this a bit more. Thank you. I'm not sure why Bartlby is saying my question looks like a graded assignment question. I guess I sound too professional lol
• How do intracellular adaptor proteinscoordinate the activation of integrinproteins and their interactions withcytoskeletal components and theirresponse to changes in mechanicalforce acting on cell–matrix junctions?