Histology Quiz
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Questions and Answers

Which organelle is responsible for generating ATP, CO2, and H2O?

  • Rough ER
  • Golgi complex
  • Mitochondria (correct)
  • Smooth ER
  • Which fibers are responsible for forming extensive networks in some organs and are composed of collagen type III?

  • Collagen fibers
  • Elastic fibers
  • Reticular fibers (correct)
  • Smooth fibers
  • What is the function of peroxisomes in the cell?

  • Contain acid hydrolases for degradation
  • Store products until signaled to release
  • Catabolize fatty acids via beta-oxidation (correct)
  • Produce steroids and phospholipids
  • Which cells contain secretory granules that contain histamine and heparin?

    <p>Mast cells</p> Signup and view all the answers

    What is the core component of microvilli?

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

    What is the protein composition of microtubules?

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

    What is the function of the Golgi complex in the cell?

    <p>Protein secretion</p> Signup and view all the answers

    What is the primary function of lysosomes in the cell?

    <p>Hydrolytic degradation of endocytosed materials</p> Signup and view all the answers

    Which fibers are rich in glycine and proline and contain the unusual amino acids desmosine and isodesmosine?

    <p>Elastic fibers</p> Signup and view all the answers

    What is the protein composition of microfilaments?

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

    Which organelle is responsible for protein secretion and the start of the secretory pathway?

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

    What is the main function of the Golgi apparatus?

    <p>Protein sorting and secretion</p> Signup and view all the answers

    Which organelle is the largest discrete organelle in a cell and is the site of DNA storage and replication?

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

    What is the main function of microtubules?

    <p>Internal support and scaffolding of the cell</p> Signup and view all the answers

    Which component of the cytoskeleton is responsible for the movement of subcellular organelles within the cytoplasm?

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

    What is the molecular composition of microfilaments?

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

    Which organelle is responsible for the production of ATP and is often referred to as the 'powerhouse of the cell'?

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

    What is the main function of intermediate filaments?

    <p>Internal support and scaffolding of the cell</p> Signup and view all the answers

    Which organelle is responsible for the terminal glycosylation, secretory vesicle formation, and carbohydrate hydrolysis?

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

    What is the main function of the RER (rough endoplasmic reticulum)?

    <p>Protein sorting and secretion</p> Signup and view all the answers

    Which type of microscope uses fluorescent substances that are irradiated by light to visualize specimens?

    <p>Confocal laser scanning microscope</p> Signup and view all the answers

    What is the function of fixation in histology?

    <p>To prevent autolysis and preserve physical structure</p> Signup and view all the answers

    Which stain is commonly used in histology and stains nuclei, RER, and ECM blue?

    <p>Hematoxylin &amp; Eosin (H&amp;E)</p> Signup and view all the answers

    Which type of microscope produces a 3D image of living cells using polarized light?

    <p>Differential Interference Contrast (DIC)</p> Signup and view all the answers

    What is the smallest distance between two particles that can be seen as separate objects in a light microscope?

    <p>0.1 um</p> Signup and view all the answers

    Which type of microscope is used to study the cell interior?

    <p>Transmission electron microscope</p> Signup and view all the answers

    Which type of stain is used to visualize carbohydrates in histology?

    <p>Periodic acid Schiff (PAS)</p> Signup and view all the answers

    Which type of microscope is used to study the cell surface and provides a pseudo 3D image?

    <p>Scanning electron microscope</p> Signup and view all the answers

    Which structures have a net positive charge and are attracted to acid dyes in histology?

    <p>RBC, collagen, mitochondria, lysosomes</p> Signup and view all the answers

    What are the four fundamental tissues in biology?

    <p>Epithelial, connective, muscle, nerve</p> Signup and view all the answers

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