Exam 12: Moving Proteins Into Membranes and Organelles

Explore all topics

A polypeptide chain contains an amphipathic helix,with arginine and lysine residues on one side and hydrophobic residues on the other.It will likely enter:

(Multiple Choice)

4.9/5

(79)

Question 21

In multipass membrane proteins synthesized in association with membrane-bounded ribosomes of the rough ER,signal-anchor and stop-transfer anchor sequences alternate.What do these sequences do?

(Essay)

4.9/5

(67)

Question 22

Many peroxisomal matrix proteins are imported as:

(Multiple Choice)

4.9/5

(88)

Question 23

Which of the following is true about ER import?

(Multiple Choice)

4.8/5

(80)

Question 24

The nuclear pore complex allows for:

(Multiple Choice)

4.8/5

(89)

Question 25

All the following proteins interact with exposed amino acids during protein folding in the ER,except:

(Multiple Choice)

5.0/5

(72)

Question 26

The nuclear pore complex (NPC)contains_____ structures that form a gel-like matrix that allow small molecules to diffuse through,but require larger proteins to enter via importin or other nuclear chaperones.

(Multiple Choice)

4.8/5

(78)

Question 27

A transmembrane receptor that functions at the cell membrane has an exoplasmic N-terminal sequence,a signal-anchor sequence,and a stop-transfer-anchor sequence.This protein was first inserted into the membrane where?

(Multiple Choice)

4.9/5

(82)

Question 28

During the process of nuclear import,a GEF works in the:

(Multiple Choice)

4.7/5

(66)

Question 29

Glycosylation,a post-translational modification of proteins,occurs in the:

(Multiple Choice)

4.8/5

(84)

Question 30

Tom/Tim and Toc/Tic protein complexes are involved in:

(Multiple Choice)

4.8/5

(84)

Question 31

PTS1- and PTS2-bearing matrix proteins are targeted to:

(Multiple Choice)

4.8/5

(77)

Question 32

Many peroxisomal matrix proteins are imported as:

(Multiple Choice)

4.8/5

(72)

Question 33

Transport of unspliced HIV mRNA from the nucleus to the cytoplasm of host cells is promoted by a virus-encoded protein named:

(Multiple Choice)

4.9/5

(72)

Question 34

Which type of RNA participates in nuclear export of mRNA?

(Multiple Choice)

4.8/5

(96)

Question 35

GPI-anchoring serves a special function,especially in polarized epithelial cells,because this modification serves to target proteins to the:

(Multiple Choice)

4.8/5

(73)

Question 36

What are the general features of an N-terminal signal sequence that targets secretory proteins to the ER?

(Essay)

4.8/5

(92)

Question 37

What is meant by de novo formation of peroxisomes?

(Essay)

5.0/5

(93)

Question 38

Unlike mitochondria and chloroplasts,peroxisomes can arise _____ from precursor membranes,as well as by division of preexisting organelles.

(Multiple Choice)

4.9/5

(78)

Question 39

Protein import into the mitochondrial matrix is supported by energy input from:

(Multiple Choice)

5.0/5

(81)

Question 40

Showing 21 - 40 of 41

Exam 12: Moving Proteins Into Membranes and Organelles

A polypeptide chain contains an amphipathic helix,with arginine and lysine residues on one side and hydrophobic residues on the other.It will likely enter:

In multipass membrane proteins synthesized in association with membrane-bounded ribosomes of the rough ER,signal-anchor and stop-transfer anchor sequences alternate.What do these sequences do?

Many peroxisomal matrix proteins are imported as:

Which of the following is true about ER import?

The nuclear pore complex allows for:

All the following proteins interact with exposed amino acids during protein folding in the ER,except:

The nuclear pore complex (NPC)contains_____ structures that form a gel-like matrix that allow small molecules to diffuse through,but require larger proteins to enter via importin or other nuclear chaperones.

A transmembrane receptor that functions at the cell membrane has an exoplasmic N-terminal sequence,a signal-anchor sequence,and a stop-transfer-anchor sequence.This protein was first inserted into the membrane where?

During the process of nuclear import,a GEF works in the:

Glycosylation,a post-translational modification of proteins,occurs in the:

Tom/Tim and Toc/Tic protein complexes are involved in:

PTS1- and PTS2-bearing matrix proteins are targeted to:

Many peroxisomal matrix proteins are imported as:

Transport of unspliced HIV mRNA from the nucleus to the cytoplasm of host cells is promoted by a virus-encoded protein named:

Which type of RNA participates in nuclear export of mRNA?

GPI-anchoring serves a special function,especially in polarized epithelial cells,because this modification serves to target proteins to the:

What are the general features of an N-terminal signal sequence that targets secretory proteins to the ER?

What is meant by de novo formation of peroxisomes?

Unlike mitochondria and chloroplasts,peroxisomes can arise _____ from precursor membranes,as well as by division of preexisting organelles.

Protein import into the mitochondrial matrix is supported by energy input from:

Chemical Foundations

Molecular Genetic Techniques

Protein Structure and Function

Culturing and Visualizing Cells

Fundamental Molecular Genetic Mechanisms

Bio-membrane Structure

Genes Genomics and Chromosomes

Transcriptional Control of Gene Expression

Post-Transcriptional Gene Control

Transmembrane Transport of Ions and Small Molecules

Cellular Energetics

Vesicular Traffic, Secretion, and Endocytosis

Signal Transduction and G-Protein Coupled Receptors

Signaling Pathways That Control Gene Activity

Cell Organization and Movement I: Microfilaments

Cell Organization and Movement II: Microtubules and Intermediate Filaments

Regulating the Eukaryotic Cell Cycle

Integrating Cells Into Tissues

Cell Birth, Lineage, and Death

Nerve Cells

Immunology

Cancer

Filters