GRE Subject Test: Biochemistry, Cell, and Molecular Biology : Help with Golgi Apparatus Structure

Study concepts, example questions & explanations for GRE Subject Test: Biochemistry, Cell, and Molecular Biology

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Example Questions

Example Question #1 : Endoplasmic Reticulum And Golgi Apparatus

Which component of the Golgi apparatus is primarily responsible for "receiving" proteins to be packaged and modified? 

Possible Answers:

Trans Golgi

Vacuoles

Medial Golgi

Cisternae

Cis Golgi

Correct answer:

Cis Golgi

Explanation:

The cis Golgi is usually closely apposed to the endoplasmic reticulum, where proteins are synthesized by ribosomes. Once they have left the ribosome, the proteins are already close to the Golgi and are taken up by the cis side of the apparatus. The trans Golgi sends the newly packaged proteins out to their final destinations. 

Example Question #2 : Endoplasmic Reticulum And Golgi Apparatus

Which component/suborganelle structure of the Golgi apparatus accepts vesicles from the rough endoplasmic reticulum containing nascent proteins to be processed through the Golgi apparatus? 

Possible Answers:

Medial Golgi stack

Trans face

Trans Golgi stack

Lumen

Cis face

Correct answer:

Cis face

Explanation:

The cis face of the Golgi apparatus is the first part of the apparatus that faces the rough endoplasmic reticulum and interacts with recently synthesized proteins that need to be processed and packaged by the Golgi apparatus. The rest of the structures listed are indeed parts of the Golgi that the proteins must pass through during the course of processing, but the cis face is met first. 

All GRE Subject Test: Biochemistry, Cell, and Molecular Biology Resources

1 Diagnostic Test 201 Practice Tests Question of the Day Flashcards Learn by Concept
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