Biology Cell Structure and Microorganisms
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Questions and Answers

What is the primary component of peroxisomes in plant cells?

  • Cellulose
  • Catalase (correct)
  • Sucrose
  • Hydrogen peroxide

What is the function of the vacuole in plant cells?

  • To convert amino acids to fatty acids
  • To break down hydrogen peroxide
  • To synthesize cellulose
  • To store nutrients and waste products (correct)

What is the unit of measurement that is equal to 0.000001 meters?

  • Angstrom
  • Micrometer (correct)
  • Millimeter
  • Nanometer

What type of microscopy uses visible light to observe specimens?

<p>Light Microscopy (A)</p> Signup and view all the answers

What is the purpose of catalase in peroxisomes?

<p>To convert hydrogen peroxide to water and oxygen (A)</p> Signup and view all the answers

What is the name of the structure used to store nutrients and waste products in plant cells?

<p>Vacuole (C)</p> Signup and view all the answers

What is the main difference between the image produced by Transmission Electron Microscopy (TEM) and Scanned-Probe Microscopy: Atomic Force?

<p>The dimensionality of the image (B)</p> Signup and view all the answers

Which type of microscopy is used to study the surface features of cells and viruses?

<p>Transmission Electron Microscopy (TEM) (B)</p> Signup and view all the answers

What is the main advantage of using electrons instead of light in Transmission Electron Microscopy (TEM)?

<p>Electrons have a shorter wavelength (D)</p> Signup and view all the answers

Which type of microscopy is used to examine the internal ultrastructure of cells in thin sections?

<p>Transmission Electron Microscopy (TEM) (C)</p> Signup and view all the answers

What is the main advantage of Scanned-Probe Microscopy: Atomic Force?

<p>It produces three-dimensional images of biological specimens at high resolution (C)</p> Signup and view all the answers

What is the function of the Perfringolysin O toxin from Clostridium perfringens?

<p>It makes holes in human plasma membranes (D)</p> Signup and view all the answers

What is the function of fluorochrome dyes in fluorescence microscopy?

<p>To absorb UV light and emit visible light (D)</p> Signup and view all the answers

What is the maximum depth that can be imaged using confocal microscopy?

<p>100 µm (D)</p> Signup and view all the answers

What is the purpose of two-photon microscopy?

<p>To study cells attached to a surface (A)</p> Signup and view all the answers

What is the resolution of super-resolution light microscopy?

<p>Less than 0.1 µm (D)</p> Signup and view all the answers

What is the function of scanning acoustic microscopy?

<p>To study living cells attached to a surface (B)</p> Signup and view all the answers

What is the advantage of scanning electron microscopy over light microscopy?

<p>Higher resolution (A)</p> Signup and view all the answers

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