Cell Biology & Neuroscience Lecture 2 Quiz
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Questions and Answers

Which scientist(s) proposed the cell theory?

  • Isaac Newton
  • Robert Hooke (correct)
  • Gregor Mendel
  • Charles Darwin
  • What is the basic unit of life according to the cell theory?

  • Molecules
  • Atoms
  • Cells (correct)
  • Tissues
  • Who is known for the discovery of cells using a microscope?

  • Rudolf Virchow
  • Matthias Jakob Schleiden
  • Anton van Leeuwenhoek (correct)
  • Louis Pasteur
  • From whom do cells arise according to the cell theory?

    <p>Existing cells</p> Signup and view all the answers

    Approximately how many cells make up our bodies?

    <p>~37 trillion cells</p> Signup and view all the answers

    Which organelle is responsible for cellular respiration?

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

    Which statement about cells is incorrect based on the text?

    <p>All cells can move</p> Signup and view all the answers

    What term describes cells without a nucleus?

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

    Which domain includes organisms that can live in extreme environments?

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

    What is the main component of the cell membrane according to the text?

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

    What does 'eu-' mean in the context of cell types?

    <p>'True'</p> Signup and view all the answers

    Which group of organisms are not mentioned in the text as examples of eukaryotes?

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

    What is the main role of actin filaments in the cytoskeleton?

    <p>Maintenance of shape</p> Signup and view all the answers

    Where does RNA splicing occur in the cell?

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

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

    <p>Synthesis of secreted and transmembrane proteins</p> Signup and view all the answers

    Which organelle is known for its modification of proteins destined for secretion?

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

    What is the size range of mitochondria typically found in cells?

    <p>0.5-1 µm x 1-2 µm</p> Signup and view all the answers

    What is the optimal pH range for lysosomes to function effectively?

    <p>4.5-5</p> Signup and view all the answers

    Which organelle is responsible for detoxifying ethanol in the liver?

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

    Which process results in the production of H2O2 (hydrogen peroxide) in peroxisomes?

    <p>Fatty acid oxidation</p> Signup and view all the answers

    What is the function of mitochondria in terms of Ca2+ storage?

    <p>Oxidative phosphorylation</p> Signup and view all the answers

    Which organelle degrades unwanted proteins and particles taken up by the cell?

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

    What type of mutations can lead to mitochondrial disorders like Kearns-Sayre syndrome?

    <p>Mutations in nuclear genes encoding mitochondrial proteins</p> Signup and view all the answers

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