Golgi Apparatus Structure and Function
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Questions and Answers

What is the primary function of the cis face of the Golgi apparatus?

  • Generating vesicles for protein synthesis
  • Accumulating larger saccules for protein modification
  • Budding transport vesicles towards the cell membrane
  • Receiving newly synthesized proteins from the RER (correct)

    • Which protein is involved in the transport of Golgi vesicles from the ER to the Golgi?

  • ATP
  • COP 2 (correct)
  • Mitochondria
  • COP 1

    • What is the purpose of the saccules in the trans face of the Golgi apparatus?

  • Accumulating larger saccules for protein storage (correct)
  • Generating vesicles for protein synthesis
  • Modifying proteins through post-translational modifications
  • Budding transport vesicles towards the cytosol

    • What is the primary function of the mitochondria in the cell?

    <p>Energy formation through ATP production</p> Signup and view all the answers

    Which of the following organelles is NOT involved in protein synthesis?

    <p>Mitochondria</p> Signup and view all the answers

    What is the result of the interaction between the RER and the Golgi apparatus?

    <p>Modification of proteins through post-translational modifications</p> Signup and view all the answers

    What is the structural similarity among membranous organelles?

    <p>Membrane composition</p> Signup and view all the answers

    Which of the following is NOT a function of vesicles in the cell?

    <p>Energy production</p> Signup and view all the answers

    What is the primary function of Rough Endoplasmic Reticulum in terms of protein synthesis?

    <p>To glycosylate proteins not destined for the cytosol</p> Signup and view all the answers

    What is the role of the Signal Recognition Particle (SRP) in protein synthesis?

    <p>To recognize the initial signal peptide and direct it to the RER</p> Signup and view all the answers

    What is the site of phospholipid synthesis in a cell?

    <p>Smooth Endoplasmic Reticulum</p> Signup and view all the answers

    What is the result of the interaction between the ribosomal subunits and the mRNA during protein synthesis?

    <p>The movement of the ribosome to the RER</p> Signup and view all the answers

    What is the purpose of the cisterna in the Endoplasmic Reticulum?

    <p>To enclose a space for protein modification</p> Signup and view all the answers

    What is the role of the Golgi Apparatus in cellular transport?

    <p>To package and transport proteins to the cell membrane</p> Signup and view all the answers

    What is the function of the vesicles formed from the Golgi Apparatus?

    <p>To transport proteins to the cell membrane for exocytosis</p> Signup and view all the answers

    What is the result of the post-translational modification of proteins in the RER?

    <p>The modification of proteins through glycosylation</p> Signup and view all the answers

    Where does the receptor for SRP-fi 2 reside?

    <p>On the membrane of the RER</p> Signup and view all the answers

    What is the main function of the SER?

    <p>Phospholipid and steroid synthesis</p> Signup and view all the answers

    How do phospholipids transfer to other membranous structures?

    <p>Through vesicle transport or phospholipid transfer proteins</p> Signup and view all the answers

    What is the function of the Golgi apparatus?

    <p>Post-translational modifications</p> Signup and view all the answers

    Where are proteins stored before exocytosis?

    <p>In the pancreas</p> Signup and view all the answers

    What is the function of signal peptidase?

    <p>To remove the SRP</p> Signup and view all the answers

    What is the function of protein P450 in liver cells?

    <p>All of the above</p> Signup and view all the answers

    What is the function of the RER?

    <p>Protein synthesis and modification</p> Signup and view all the answers

    What is the function of the porin proteins in the outer mitochondrial membrane?

    <p>To transfer small molecules to the intermembrane space</p> Signup and view all the answers

    What is the main function of the mitochondrial matrix?

    <p>To generate energy for the cell</p> Signup and view all the answers

    What is unique about the phospholipids found in the mitochondrial inner membrane?

    <p>They are highly impermeable to ions</p> Signup and view all the answers

    What is the function of the thermogenin protein in the mitochondrial matrix?

    <p>To regulate body temperature</p> Signup and view all the answers

    What is the main function of the cisternae in the mitochondrial inner membrane?

    <p>To increase the surface area for ATP synthesis</p> Signup and view all the answers

    What is the function of the ATP synthase complexes in the mitochondrial inner membrane?

    <p>To generate energy for the cell</p> Signup and view all the answers

    What is the function of the multimeric protein complexes in the mitochondrial inner membrane?

    <p>To generate energy for the cell</p> Signup and view all the answers

    Where are most mitochondrial proteins synthesized?

    <p>In the cytoplasm</p> Signup and view all the answers

    What is the function of the mitochondrial outer membrane?

    <p>To transfer molecules to the intermembrane space</p> Signup and view all the answers

    What is the function of the intermembrane space?

    <p>To store small molecules for transfer to the mitochondrial matrix</p> Signup and view all the answers

    What is unique about the mitochondrial DNA compared to nuclear DNA?

    <p>It is circular in shape</p> Signup and view all the answers

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