Non-Membranous Organelles Quiz
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Questions and Answers

Which organelle is responsible for the formation of ribosomes?

  • Nucleus
  • Endoplasmic reticulum
  • Nucleolus (correct)
  • Centrioles

What is the composition of a single ribosome?

  • 1 subunit
  • 4 subunits
  • 2 subunits (large and small) (correct)
  • 3 subunits

Where are free ribosomes distributed within the cell?

  • Endoplasmic reticulum
  • Mitochondria
  • Cytoplasm (correct)
  • Nucleus

How are attached ribosomes linked to cellular membranes?

<p>Linked by their large subunit (B)</p> Signup and view all the answers

What structures in nerve cells exhibit localized basophilia due to the presence of attached ribosomes?

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

What is the primary function of polysomes?

<p>Protein synthesis for secretion (A)</p> Signup and view all the answers

How are cytoplasmic microtubules best demonstrated?

<p>By immunofluorescent staining using fluorescent-labeled antibody to tubulin (A)</p> Signup and view all the answers

What is the primary function of centrioles?

<p>Initiation of cell division and spindle formation (C)</p> Signup and view all the answers

What is the composition of thick filaments?

<p>Thicker filaments made of protein myosin (C)</p> Signup and view all the answers

Where are cilia present in the cells?

<p>On the free surface of certain cells (C)</p> Signup and view all the answers

Which type of cytoplasmic inclusion is responsible for storing fats in the form of small droplets or large globules?

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

Which type of cytoplasmic inclusion represents waste products and increases with age?

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

What is the primary function of melanin in the body?

<p>Protecting against ultraviolet rays (C)</p> Signup and view all the answers

Which type of cytoplasmic inclusion is formed inside the body to carry O2 and CO2?

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

In which type of cells are glycogen granules (alpha) and glycogen granules (beta) found?

<p>Liver cells and muscles (D)</p> Signup and view all the answers

Which type of chromatin appears as aggregations of electron-dense granules?

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

Which organelle is continuous with the membranes of the endoplasmic reticulum in the cytoplasm?

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

What is the primary function of nuclear pores in the nuclear membrane?

<p>Exchange of chemical molecules between the nucleus and the cytoplasm (B)</p> Signup and view all the answers

In which type of cell would you find multinucleated cells?

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

What type of cells possess nuclei and are called eukaryotic?

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

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