Plant Reproduction Flashcards
1
Q
Alternation of Generations
A
-two separate adult versions of a plants reproduction (sporophyte and gametophyte)
2
Q
Haploid Adult (n)
A
-gametophyte
3
Q
Diploid Adult (2n)
A
Sporophyte
4
Q
Sporophyte (2n)
A
- asexual reproduction (spores)
- sporangia: reproductive structures
- sorus: inside sporangia
- undergoes meiosis to produce spores
sporophyte -> diploid (2n) -> meisois -> haploid spores (n)
5
Q
Gametophyte (n)
A
- produces gametes
- mitosis
- antheridia; produces sperm
- archegonium: produces egg
- both come together and form the sporophyte (2n)
Gametophyte -> haploid (n) -> mitosis -> haploid gametes (n)
6
Q
Angiosperms and Gymnosperms
A
- sporophyte dominant
- sporophyte nutritionally independent
- gametophyte nutritionally dependent
- produces spores by meiosis
- pollen grain: male gametophyte
7
Q
Mitosis
A
-division of nucleus resulting in exact copy
8
Q
Meiosis
A
-reduction in the number of chromosomes (also division of the nucleus)
9
Q
Gametogenesis
A
-formation of sperm and eggs
10
Q
Fertilization
A
-fusion of sperm and egg
