Cell Biology Chapter Quiz
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Questions and Answers

What structure is primarily responsible for giving a cell its shape?

  • Ribosomes
  • Cytoplasm (correct)
  • Nucleus
  • Chromatin
  • Which protein plays a key role in the organization of DNA during cell division?

  • Histones (correct)
  • Microtubules
  • Actin
  • Ribosomes
  • Which of the following is NOT a component of the cytoskeleton?

  • Histones (correct)
  • Microtubules
  • Intermediate Filaments
  • Micro filaments
  • How are ribosomes transported out of the nucleus?

    <p>Through nuclear pores</p> Signup and view all the answers

    What form does DNA take when it is not dividing?

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

    What is the primary function of mitochondria in the cell?

    <p>Generation of cellular energy (ATP)</p> Signup and view all the answers

    Which of the following describes the structural characteristic of centrioles?

    <p>Composed of a 9+0 arrangement of rods</p> Signup and view all the answers

    Which of the following organelles is responsible for cellular respiration?

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

    In which situation would you expect a cell to have an increased number of mitochondria?

    <p>When the cell is highly active and requires more energy</p> Signup and view all the answers

    What is a key feature of the mitochondrial structure?

    <p>Double membrane with an intermembrane space</p> Signup and view all the answers

    What is the primary function of the cell membrane?

    <p>Control what passes in and out of the cell</p> Signup and view all the answers

    Which component of the nucleus is responsible for ribosome production?

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

    Which statement accurately describes the nuclear pores?

    <p>They regulate the passage of molecules, ions, and RNA.</p> Signup and view all the answers

    What is the main structural component of the nuclear envelope?

    <p>Double membrane phospholipid bilayer</p> Signup and view all the answers

    What role does the nuclear lamina play in the nucleus?

    <p>It provides structural support and stability to the nuclear membrane.</p> Signup and view all the answers

    Which of the following kingdoms includes organisms that are unicellular and prokaryotic?

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

    What is the purpose of glycoproteins in the plasma membrane?

    <p>To facilitate cell recognition and communication</p> Signup and view all the answers

    Which of the following statements accurately describes the endomembrane system?

    <p>It consists of structures like the ER and Golgi that help transport and modify proteins.</p> Signup and view all the answers

    What is the arrangement of microtubules found in centrioles?

    <p>9+0</p> Signup and view all the answers

    Which of the following features distinguishes eukaryotic cells from prokaryotic cells?

    <p>Membrane-bound organelles</p> Signup and view all the answers

    What evidence supports the endosymbiotic theory regarding mitochondria and chloroplasts?

    <p>They can replicate independently of the host cell.</p> Signup and view all the answers

    Which statement is true about the differences between ribosomes found in the endoplasmic reticulum and free-floating ribosomes?

    <p>Ribosomes in the ER synthesize proteins for membrane-bound or secretory functions.</p> Signup and view all the answers

    What was the significance of Louis Pasteur's Swan Neck Flask Experiment?

    <p>It disproved the theory of spontaneous generation.</p> Signup and view all the answers

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