Free Ribosomes in Cell Biology
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Questions and Answers

Which organelle is often made of tubular structures?

  • Endoplasmic reticulum (correct)
  • Mitochondria
  • Nucleus
  • Golgi apparatus

What is the morphologically distinct organelle described as being made of tubular structures?

  • Endoplasmic reticulum (correct)
  • Ribosome
  • Lysosome
  • Chloroplast

Which organelle, due to its tubular morphology, is involved in lipid metabolism and detoxification processes?

  • Smooth endoplasmic reticulum (correct)
  • Peroxisome
  • Vacuole
  • Centriole

What is the name of the organelle known for its interconnected tubular structures found in two types: rough and smooth?

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

Which organelle, due to its tubular nature, is responsible for calcium storage and release within muscle cells?

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

Which statement accurately describes the outer mitochondrial membrane?

<p>It is permeable to most small molecules (B)</p> Signup and view all the answers

What is the role of the 70S ribosomes in mitochondria?

<p>Producing proteins within the mitochondria (C)</p> Signup and view all the answers

What is the main function of the outer mitochondrial membrane?

<p>Regulation of molecule passage (D)</p> Signup and view all the answers

Which component is responsible for oxidative phosphorylation in mitochondria?

<p>Inner mitochondrial membrane (A)</p> Signup and view all the answers

What distinguishes the structure of mitochondria from other organelles?

<p>Presence of 70S ribosomes (D)</p> Signup and view all the answers

What is the role of peroxisomes in plants?

<p>Required for photorespiration (B)</p> Signup and view all the answers

Which organelle is emphasized as essential for photorespiration in plants?

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

What is the significance of cytoskeleton in cells?

<p>Providing structural support (B)</p> Signup and view all the answers

Which cellular function is NOT associated with peroxisomes?

<p>Photosynthesis (B)</p> Signup and view all the answers

In which cellular process are peroxisomes essential due to their involvement in a specific metabolic pathway?

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

What is one of the main functions of the Golgi apparatus?

<p>Transporting and modifying proteins (B)</p> Signup and view all the answers

What is the main function of free ribosomes?

<p>Produce structural and enzymatic proteins for the cell itself (A)</p> Signup and view all the answers

Where are free ribosomes located?

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

Which process does the Golgi apparatus NOT perform on proteins?

<p>Deamination (B)</p> Signup and view all the answers

Which cellular structure is responsible for producing structural proteins outside of the cell itself?

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

If a cell lacks free ribosomes, what would be the most likely impact on the cell?

<p>Reduced production of internal cellular proteins (B)</p> Signup and view all the answers

What distinguishes free ribosomes from bound ribosomes in terms of their location?

<p>Free ribosomes are found in the cytoplasm while bound ribosomes are found on the endoplasmic reticulum (B)</p> Signup and view all the answers

Which of the following is NOT modified by the Golgi apparatus?

<p>Chlorophyll (B)</p> Signup and view all the answers

What type of proteins are processed by the Golgi apparatus?

<p>Lysosomal proteins (A)</p> Signup and view all the answers

In addition to proteins, what other cellular component is packaged by the Golgi apparatus?

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

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