Biology Chapter 1: Preview of the Cell
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Questions and Answers

Who were the two scientists that co-authored a paper repeating the postulates of cell biology?

  • Rudolf Virchow and Rosalind Franklin
  • Anton van Leeuwenhoek and Gregor Mendel
  • Louis Pasteur and Robert Hooke
  • Matthias Schleiden and Theodor Schwann (correct)
  • Which aspect of cell biology focused mainly on observation with little emphasis on explanation in the early stages of research?

  • Genetics
  • Biochemistry
  • Mitosis
  • Cytology (correct)
  • What is Spirulina platensis known for around the world?

  • Marine toxicity
  • Nutritional value and protein content (correct)
  • Being a rare edible fungus
  • Its role in cell division
  • What did Wohler's synthesis of urea in the laboratory demonstrate about living things?

    <p>They are governed by biochemical processes</p> Signup and view all the answers

    Which process was shown to be a chemical reaction through the demonstration of fermentation in cells?

    <p>Conversion of raw material into product</p> Signup and view all the answers

    Which strand in cell biology focuses on information flow and heredity, including sequencing the entire genome and gene editing?

    <p>Third strand</p> Signup and view all the answers

    What technique uses an electrical field to move proteins, DNA, or RNA molecules through a medium based on size/charge?

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

    Why is mass spectrometry important in bioanalysis?

    <p>To identify the composition of bioactive plant components</p> Signup and view all the answers

    Which scientist laid the foundation for understanding the passage of hereditary factors?

    <p>Gregor Mendel</p> Signup and view all the answers

    In electrophoresis gel, why do longer DNA fragments move slower?

    <p>Due to smaller pores in the gel</p> Signup and view all the answers

    What is the primary purpose of using mass spectrometry in bioanalysis?

    <p>To identify the chemical composition of samples</p> Signup and view all the answers

    Which technique helps in tracing the metabolic fate of specific atoms and molecules?

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

    Who first isolated DNA and called it nuclein?

    <p>Friedrich Miescher</p> Signup and view all the answers

    Which scientists were able to connect specific traits to specific chromosomes in Drosophila melanogaster?

    <p>Morgan, Bridges, &amp; Sturtevant</p> Signup and view all the answers

    Who proposed the chromosome theory of heredity suggesting Mendel's factors are located on chromosomes?

    <p>Morgan, Bridges, &amp; Sturtevant</p> Signup and view all the answers

    Which concept stated that each gene is responsible for the production of a single protein?

    <p>One gene-one enzyme concept</p> Signup and view all the answers

    What did Walther Flemming call the process of cell division?

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

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