Sexual Reproduction in Flowering Plants: Stamen and Pollen Grain
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Questions and Answers

What is the name of the slender stalk part of a typical stamen?

  • Thalamus
  • Anther
  • Petal
  • Filament (correct)

    • In a typical angiosperm anther, what term describes the characteristic of having two theca in each lobe?

  • Microsporangium
  • Dithecous (correct)
  • Transverse
  • Bilobed

    • How many microsporangia are located at the corners of a four-sided anther?

  • Eight
  • Two
  • Four (correct)
  • Six

    • Which microscope is recommended for a careful observation of a stamen to elucidate shape and attachment of anthers?

    <p>Dissecting microscope</p> Signup and view all the answers

    What structure develops further to become pollen sacs in an anther?

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

    What is the function of the tapetum in an anther?

    <p>Nourish the developing pollen grains</p> Signup and view all the answers

    Which wall layer of the microsporangium aids in the dehiscence of the anther?

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

    How does tapetal cells becoming bi-nucleate contribute to pollen development?

    <p>Facilitates meiotic divisions in pollen development</p> Signup and view all the answers

    At what stage do cells of the sporogenous tissue undergo meiotic divisions to form microspore tetrads?

    <p>When the anther is young</p> Signup and view all the answers

    What is the ploidy of cells in a microspore tetrad?

    <p>Diploid (2n)</p> Signup and view all the answers

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