Cell Biology: Smooth Endoplasmic Reticulum and Golgi Apparatus
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Questions and Answers

What is the main function of smooth endoplasmic reticulum?

  • Carbohydrate storage
  • Detoxifying harmful metabolic products
  • Protein synthesis
  • Lipid and fatty acid biosynthesis (correct)

Which organelle is responsible for modifying and sorting proteins and lipids?

  • Lysosome
  • Mitochondrion
  • Golgi apparatus (correct)
  • Nucleus

What is the major site where carbohydrates are added to proteins and lipids?

  • Golgi apparatus (correct)
  • Endoplasmic reticulum
  • Mitochondrion
  • Lysosome

Which organelle looks like stacks of flattened membrane sacs?

<p>Golgi apparatus (A)</p> Signup and view all the answers

What is the main function of the Golgi apparatus?

<p>Modification and sorting of proteins and lipids (C)</p> Signup and view all the answers

Which organelle is specialized for the production of lipids?

<p>Smooth endoplasmic reticulum (C)</p> Signup and view all the answers

What is the function of sugars attached to proteins in glycoproteins?

<p>Form a protective coating over the cell membrane (C)</p> Signup and view all the answers

What is the main function of lysosomes in cells?

<p>Degrade macromolecules using hydrolytic enzymes (D)</p> Signup and view all the answers

Which organelle is responsible for the traffic of proteins from ER to Golgi?

<p>Golgi apparatus (D)</p> Signup and view all the answers

What is the role of small amounts of reverse traffic in cells?

<p>Retrieve proteins accidentally moved forward in the ER/Golgi (A)</p> Signup and view all the answers

Which organelle is responsible for forming a protective coating over the cell membrane through glycoproteins?

<p>Golgi apparatus (A)</p> Signup and view all the answers

What is the primary function of glycoproteins in cells?

<p>Facilitate cell-cell recognition and interaction (D)</p> Signup and view all the answers

What is the primary function of the endoplasmic reticulum?

<p>Protein and lipid synthesis (D)</p> Signup and view all the answers

Which organelle is composed of a network of membranes for protein and lipid synthesis?

<p>Endoplasmic reticulum (D)</p> Signup and view all the answers

What type of proteins does the rough endoplasmic reticulum synthesize?

<p>Membrane-bound proteins (B)</p> Signup and view all the answers

Which organelle is responsible for synthesizing transmembrane proteins destined for organelles or secretion?

<p>Ribosomes (C)</p> Signup and view all the answers

What is the primary role of the Golgi apparatus?

<p>Protein modification and packaging (A)</p> Signup and view all the answers

Which organelle has two different appearances and is involved in synthesizing transmembrane proteins?

<p>Endoplasmic reticulum (A)</p> Signup and view all the answers

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