Exam 12: Protein Sorting and Transport

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The major model of vesicle fusion holds that actual fusion of a vesicle with its target membrane is driven by the interaction of pairs of proteins called vesicle and target

(Multiple Choice)

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Question 61

Cargo proteins are transported through the Golgi apparatus to the trans-Golgi network, where they are sorted into various vesicles that are targeted to different destinations. What is the role of vesicles in cargo protein transport through the Golgi apparatus?

(Essay)

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Question 62

The process by which cells degrade their own components by enclosing them in ER membrane is

(Multiple Choice)

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Question 63

How do lysosomes become acidic?

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Question 64

A member of the heat-shock class of proteins, BiP, is necessary for the proper folding of proteins in the ER. In terms of function, what do BiP and the heat-shock proteins (HSP) have in common?

(Essay)

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Question 65

Describe the process of autophagy.

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Question 66

When compared to polypeptides synthesized in vitro on free ribosomes, polypeptides synthesized from the same mRNA on microsome-bound ribosomes often are

(Multiple Choice)

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Question 67

The pH inside lysosomes is about

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Question 68

Phospholipids are synthesized in the cytosolic half of the ER bilayer.

(True/False)

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Question 69

What are the two families of small GTP-binding proteins that are involved in the formation of coated vesicles?

(Short Answer)

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Question 70

Smooth ER is abundant in cells actively synthesizing steroid hormones.

(True/False)

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Question 71

In eukaryotic cells, most protein synthesis is initiated in the _______.

(Short Answer)

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Question 72

Cargo proteins are transported through the Golgi apparatus by

(Multiple Choice)

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Question 73

Describe the selective and nonselective cellular purposes of autophagy.

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Question 74

The sequence Lys-Asp-Glu-Leu (KDEL) serves to retain proteins in the ER by

(Multiple Choice)

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Question 75

Arf function on vesicles is regulated by

(Multiple Choice)

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Question 76

Using radiolabeled amino acids, Palade and colleagues defined the pathway taken by secreted proteins. Which sequence represents that pathway?

(Multiple Choice)

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Question 77

Proteins that fail to fold properly in the endoplasmic reticulum are removed through the process of _______.

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Question 78

The cytosolic surface of the rough endoplasmic membrane can be readily distinguished from the luminal surface by the presence of _______.

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Question 79

Free ribosomes in the cytosol and ribosomes bound to the ER membrane have

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Question 80

Showing 61 - 80 of 110

The major model of vesicle fusion holds that actual fusion of a vesicle with its target membrane is driven by the interaction of pairs of proteins called vesicle and target

Cargo proteins are transported through the Golgi apparatus to the trans-Golgi network, where they are sorted into various vesicles that are targeted to different destinations. What is the role of vesicles in cargo protein transport through the Golgi apparatus?

The process by which cells degrade their own components by enclosing them in ER membrane is

How do lysosomes become acidic?

A member of the heat-shock class of proteins, BiP, is necessary for the proper folding of proteins in the ER. In terms of function, what do BiP and the heat-shock proteins (HSP) have in common?

Describe the process of autophagy.

When compared to polypeptides synthesized in vitro on free ribosomes, polypeptides synthesized from the same mRNA on microsome-bound ribosomes often are

The pH inside lysosomes is about

Phospholipids are synthesized in the cytosolic half of the ER bilayer.

What are the two families of small GTP-binding proteins that are involved in the formation of coated vesicles?

Smooth ER is abundant in cells actively synthesizing steroid hormones.

In eukaryotic cells, most protein synthesis is initiated in the _______.

Cargo proteins are transported through the Golgi apparatus by

Describe the selective and nonselective cellular purposes of autophagy.

The sequence Lys-Asp-Glu-Leu (KDEL) serves to retain proteins in the ER by

Arf function on vesicles is regulated by

Using radiolabeled amino acids, Palade and colleagues defined the pathway taken by secreted proteins. Which sequence represents that pathway?

Proteins that fail to fold properly in the endoplasmic reticulum are removed through the process of _______.

The cytosolic surface of the rough endoplasmic membrane can be readily distinguished from the luminal surface by the presence of _______.

Free ribosomes in the cytosol and ribosomes bound to the ER membrane have

An Overview of Cells and Cell Research

Molecules and Membranes

Bioenergetics and Metabolism

Fundamentals of Molecular Biology

Genomics, Proteomics, and Systems Biology

Genes and Genomes

Replication, Maintenance, and Rearrangements of Genomic Dna

RNA Synthesis and Processing

Transcriptional Regulation and Epigenetics

Protein Synthesis, Processing, and Regulation

The Nucleus

Mitochondria, Chloroplasts, and Peroxisomes

The Cytoskeleton and Cell Movement

The Plasma Membrane

Cell Walls, the Extracellular Matrix, and Cell Interactions

Cell Signaling

The Cell Cycle

Cell Death and Cell Renewal

Cancer

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