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BIO 200: Plants > Gametophyte and Gametes > Flashcards

Gametophyte and Gametes Flashcards

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Biology 101 flashcards
1
Q

Functions of Gametophyte

A
  1. Produce gametes

2. Support growth of young sporophyte

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2
Q

Anatomy

A
  • Haploid
  • 100s of cells
  • Photosynthetic
  • < 1cm in diameter
  • Rhizoids on underside
  • 2 types of Gamete containers:
    1. Antheridium 2. Archegonia
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3
Q

Antheridium

A

Produces SPERM

  • Usually near rhizoids
  • Spherical
  • coiled up sperm
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4
Q

Archegonia

A

Produces EGG

  • flask shaped
  • found near apical notch
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5
Q

Homosporous

A

Produce 1 type of spore

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6
Q

Bisexual Gametophyte

A
  • Can produce both types of spores
  • PROBLEM: Higher chance of self-fert., Low genetic variability
  • heart-shaped, meristic (has meristem)
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7
Q

Unisexual Gametophyte

A

Globular/Strap-shaped gametophytes - produce only antheridia (sperm), ameristic (no meristem)

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BIO 200: Plants (4 decks)

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