Cell Biology Quiz
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Questions and Answers

Which scientist ended the debate of spontaneous generation with his swan-neck flask experiment?

  • Gregor Mendel
  • Louis Pasteur (correct)
  • Robert Hooke
  • Anton van Leeuwenhoek
  • Which of the following is one of the basic properties and functions of cells?

  • Synthesis of DNA
  • Production and use of energy (correct)
  • Regulation of body temperature
  • Transportation of nutrients
  • Which statement accurately describes the cell theory?

  • Cells are identical to each other
  • Cells can only come from inanimate objects
  • All living organisms are formed by cells (correct)
  • Cells are the smallest unit of life
  • Which of the following is a characteristic of prokaryotic cells?

    <p>They have a tough protective coat</p> Signup and view all the answers

    What is the function of the mesosome in a prokaryotic cell?

    <p>To aid in compartmentalization</p> Signup and view all the answers

    Which acellular form is an intracellular parasite that infects host cells and destroys them?

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

    Which of the following is NOT a main subfield within cell biology?

    <p>The study of cell structure and components</p> Signup and view all the answers

    Who is considered the father of Cellular Pathology?

    <p>Rudolf Virchow</p> Signup and view all the answers

    Who discovered the external structure of cells and described the cavities formed by the cell wall?

    <p>Robert Hooke</p> Signup and view all the answers

    Who studied the process of cell division and the distribution of chromosomes in the daughter cell by the process of mitosis?

    <p>Walther Fleming</p> Signup and view all the answers

    What did Louis Pasteur discover 100 years after Leeuwenhoek's discovery of microorganisms?

    <p>The invalidity of spontaneous generation</p> Signup and view all the answers

    What did Schleiden and Schwann's discoveries allow to postulate?

    <p>The concept of cell as a protoplasmic mass</p> Signup and view all the answers

    Which type of virus requires an outer membrane to infect cells?

    <p>Enveloped virus</p> Signup and view all the answers

    What is the main cause of prion diseases?

    <p>Misfolding of cellular prion protein</p> Signup and view all the answers

    Which of the following is a human prion disease?

    <p>Creutzfeldt-Jakob Disease (CJD)</p> Signup and view all the answers

    What is the function of the capsid in a virus?

    <p>Organizes the nucleic acid</p> Signup and view all the answers

    Which type of nucleic acid is found in viruses?

    <p>Both DNA and RNA</p> Signup and view all the answers

    What is the main consequence of prion diseases?

    <p>Brain damage</p> Signup and view all the answers

    Which film is recommended to watch in relation to viruses?

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

    Which of the following is an animal prion disease?

    <p>Chronic Wasting Disease (CWD)</p> Signup and view all the answers

    Which scientist is considered the father of cytogenetics?

    <p>Walther Fleming</p> Signup and view all the answers

    Which scientist discovered the concept of cell as a protoplasmic mass, limited by a cell membrane and with the presence of a nucleus?

    <p>Rudolf Virchow</p> Signup and view all the answers

    What is the main subfield within cell biology that focuses on the rotation of phases beginning and ending with cell division and is focused on different periods of growth and DNA replication?

    <p>Cell communication and signaling</p> Signup and view all the answers

    Which of the following is a characteristic of eukaryotic cells?

    <p>They have a nucleolus</p> Signup and view all the answers

    Which of the following is NOT a function of cells?

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

    What is the main difference between prokaryotic and eukaryotic cells?

    <p>Prokaryotic cells lack membrane-bound organelles</p> Signup and view all the answers

    Which type of virus requires an outer membrane to infect cells?

    <p>Animal or Plants virus</p> Signup and view all the answers

    Which of the following is NOT a human prion disease?

    <p>Bovine Spongiform Encephalopathy (BSE)</p> Signup and view all the answers

    What is the main cause of prion diseases?

    <p>Misfolding of the cellular prion protein (PrPC)</p> Signup and view all the answers

    Which of the following is NOT a type of nucleic acid found in viruses?

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

    Study Notes

    Cell Biology

    • The scientist who ended the debate of spontaneous generation with his swan-neck flask experiment is Louis Pasteur.

    Cell Theory

    • The cell theory is accurately described by the statement that all living organisms are composed of one or more cells.

    Cell Characteristics

    • One of the basic properties and functions of cells is to maintain homeostasis.
    • Prokaryotic cells are characterized by the lack of a true nucleus and membrane-bound organelles.
    • Eukaryotic cells are characterized by the presence of a true nucleus and membrane-bound organelles.

    Cell Structure

    • The mesosome is a specialized structure in prokaryotic cells that increases the surface area for DNA replication and transcription.
    • Matthias Jakob Schleiden and Theodor Schwann's discoveries allowed to postulate that cells are the basic structural and functional units of life.

    Viruses

    • Viruses are acellular forms that infect host cells and destroy them.
    • There are two types of viruses: enveloped viruses that require an outer membrane to infect cells, and naked viruses that do not require an outer membrane.
    • The capsid is a protein coat that protects the viral genome.
    • Viruses have either DNA or RNA as their genetic material.
    • The main consequence of prion diseases is the accumulation of abnormally folded protein aggregates that lead to cell death.

    Prion Diseases

    • The main cause of prion diseases is the misfolding of normal proteins into abnormally folded protein aggregates.
    • Examples of human prion diseases include Creutzfeldt-Jakob disease, Gerstmann-Sträussler-Scheinker disease, and fatal insomnia.
    • The film "Prion" is recommended to watch in relation to viruses.

    Scientists

    • Rudolf Virchow is considered the father of Cellular Pathology.
    • Matthias Jakob Schleiden and Theodor Schwann discovered the external structure of cells and described the cavities formed by the cell wall.
    • Edouard Van Beneden studied the process of cell division and the distribution of chromosomes in the daughter cell by the process of mitosis.
    • Louis Pasteur discovered that microorganisms are responsible for fermentation and disease.
    • Theodor Boveri is considered the father of cytogenetics.
    • Matthias Jakob Schleiden discovered the concept of cell as a protoplasmic mass, limited by a cell membrane and with the presence of a nucleus.

    Cell Biology Subfields

    • The main subfield within cell biology that focuses on the rotation of phases beginning and ending with cell division and is focused on different periods of growth and DNA replication is the cell cycle.
    • Cytogenetics is the study of the structure and function of cells, particularly in relation to the chromosomes.

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    Description

    Test your knowledge of cell biology with this quiz! Explore the fascinating subfields of cell energy and genetic interconnections within the cell. Challenge yourself and enhance your understanding of the fundamental unit of life.

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