Plant Reproduction Flashcards

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1
Q

Alternation of Generations

A

-two separate adult versions of a plants reproduction (sporophyte and gametophyte)

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2
Q

Haploid Adult (n)

A

-gametophyte

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3
Q

Diploid Adult (2n)

A

Sporophyte

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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)

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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)

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6
Q

Angiosperms and Gymnosperms

A
  • sporophyte dominant
  • sporophyte nutritionally independent
  • gametophyte nutritionally dependent
  • produces spores by meiosis
  • pollen grain: male gametophyte
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7
Q

Mitosis

A

-division of nucleus resulting in exact copy

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8
Q

Meiosis

A

-reduction in the number of chromosomes (also division of the nucleus)

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9
Q

Gametogenesis

A

-formation of sperm and eggs

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10
Q

Fertilization

A

-fusion of sperm and egg

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