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Bio 1B > General Terms - Gymnosperm > Flashcards

General Terms - Gymnosperm Flashcards

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Biology 101 flashcards
1
Q

Male gametophyte

A 
Pollen
No antheridium (gametangia) - sperm produced by mitosis
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2
Q

Female gametophyte

A

Seed

Embryo embedded inside gametophyte is next sporophyte generation

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3
Q

Gymnosperm

A

All seed plants except flowering plants

Seeds are naked

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4
Q

Types of gymnosperm

A
  1. Cycadophyta (cycads)
  2. gnetophyta (ephedra)
  3. Ginkgophyta (ginkgo biloba)
  4. Coniferophyta (cone bearing plants) THIS IS THE LIFE CYCLE WE SEE
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5
Q

Heterospory

A

2 kinds of spores in different sporangia (mega and micro)

Seen in all seed plants

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6
Q

Homospory

A

Ancestral condition in vascular plants with only one type of spore that produces bisexual gametophyte with both types of gametangia

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Bio 1B (7 decks)

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