Describe the angiosperm life cycle (1 - 5).
1. Microsporangia in anthers produce pollen (microspores) by meoisis.
2. Microspores germinate, form 3-nucleate microgametophytes with 2 sperm cells.
3. Megasporangia in ovules produce megaspores by meoisis.
4. Megaspores develop into 8-nucleate megagametophytes with 1 egg cell.
5. Double fertilization produces an embryo in a seed (from ovule) in a fruit (from ovary)
2. Microspores germinate, form 3-nucleate microgametophytes with 2 sperm cells.
3. Megasporangia in ovules produce megaspores by meoisis.
4. Megaspores develop into 8-nucleate megagametophytes with 1 egg cell.
5. Double fertilization produces an embryo in a seed (from ovule) in a fruit (from ovary)
Tags: angiosperms, life cycles, megaspores, microspores
Source:
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Flashcard set info:
Author: zeestree
Main topic: Medicine
Topic: Angiosperms
School / Univ.: University of Hawaii at Manoa
City: Honolulu
Published: 19.04.2010
Tags: Angiosperms
Card tags:
All cards (6)
angiosperms (6)
characteristics (2)
classes (1)
cotyledons (1)
cretaceous (1)
dicots (1)
integuments (1)
life cycles (1)
megaspores (1)
microspores (1)
monocots (1)
seed coat (1)
seeds (1)
