Cell Nucleus and Chromosomes Quiz
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Questions and Answers

What is the composition of chromosomes in a cell?

  • DNA and protein (correct)
  • Carbohydrates and lipids
  • Proteins and lipids
  • RNA and carbohydrates
  • What are the functional segments of DNA called?

  • Genes (correct)
  • Lipids
  • Carbohydrates
  • Proteins
  • What is visible as rod-shaped structures when a cell is about to divide?

  • Ribosomes
  • Endoplasmic reticulum
  • Nucleoid
  • Chromatin material (correct)
  • What is the nuclear region of a cell called in organisms lacking a nuclear membrane?

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

    Which type of organisms lack a nuclear membrane in their cells?

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

    Which organelle plays a central role in cellular reproduction and directing chemical activities of the cell?

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

    What is the function of the plasma membrane in a cell?

    <p>Regulating what enters and exits the cell</p> Signup and view all the answers

    Which organelle is responsible for protein synthesis in both prokaryotic and eukaryotic cells?

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

    In prokaryotic cells, which structure is absent compared to eukaryotic cells?

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

    Which structure in a prokaryotic cell is associated with membranous vesicles and not plastids?

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

    What is the function of the nucleoid in prokaryotic cells?

    <p>Storage of genetic material</p> Signup and view all the answers

    Which structure is common to both prokaryotic and eukaryotic cells?

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

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

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

    Which organelle is absent in prokaryotic cells but present in eukaryotic cells?

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

    What differentiates the nuclear region in eukaryotic cells from prokaryotic cells?

    <p>Presence of multiple chromosomes</p> Signup and view all the answers

    Which structure is responsible for the manufacture of fat molecules important for cell function?

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

    What is the main function of ribosomes in a cell?

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

    Which organelle looks rough under a microscope due to ribosomes attached to its surface?

    <p>Rough endoplasmic reticulum (RER)</p> Signup and view all the answers

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