Physiology Cellular and Membrane Structure: Interior Components of the Cell
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Physiology Cellular and Membrane Structure: Interior Components of the Cell

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Questions and Answers

What is the function of the nucleus in a cell?

  • Formation of cellular membranes
  • Regulation of body fluids
  • Storage and transmission of genetic information (correct)
  • Synthesis of cytoplasmic organelles

    • What happens to the chromatin threads during cell division?

  • They break down and disintegrate
  • They transform into cytoplasmic organelles
  • They become tightly condensed forming chromosomes (correct)
  • They remain unchanged

    • What is the function of the nuclear envelope in a cell?

  • Formation of chromatin threads
  • Regulation of RNA synthesis
  • Facilitation of RNA movement between nucleus and cytoplasm (correct)
  • Structural support for the nucleus

    • Which structure in the cell is composed of two membranes and contains nuclear pores?

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

    What is the main function of the chromatin in the nucleus?

    <p>Transmission of genetic information</p> Signup and view all the answers

    Which organelle is usually located near the center of the cell?

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

    Which organelle is involved in the synthesis of certain lipid molecules?

    <p>Endoplasmic reticulum – smooth</p> Signup and view all the answers

    Which organelle is well developed in cells that produce and secrete proteins?

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

    Which organelle has ribosomes bound to its cytosolic surface?

    <p>Membranous endoplasmic reticulum</p> Signup and view all the answers

    Where are proteins packaged before being secreted by the cell?

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

    Which organelle is involved in the modification and detoxification of certain hydrophobic molecules?

    <p>Endoplasmic reticulum – smooth</p> Signup and view all the answers

    Which organelle is associated with the assembly of ribosomes?

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

    Which organelle is most prominent in the nucleus and lacks a membrane?

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

    Which organelle is involved in digesting damaged cellular structures and food particles ingested by the cell?

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

    Which organelle contains a Ca2+ pump to transport calcium ions from the cytoplasm to its lumen?

    <p>Membranous endoplasmic reticulum</p> Signup and view all the answers

    Which organelle contains enzymes for the citric acid cycle and fatty acid oxidation?

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

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