Chapter 38 Plant Reproduction Flashcards Preview

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Flashcards in Chapter 38 Plant Reproduction Deck (25)
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1

Alternation of generations

Happens in every plant, but depends on type of group.

2

Alternation of generations cycle

Sporophyte-Meiosis-Spores-Mitosis (split)- Gametes (egg or sperm)-Fertilization- Zygote-Mitosis

3

Examples of Vegetative Reproduction

Stolon/Rhizome
Bulbs, tubers, corms
Adventitious roots
Sucks
Plantlets

4

Apomixis

Seeds produced without fertilization

5

Asexual Reproduction Advantages

efficient, if environment doesn't change

6

Asexual Reproduction Disadvantages

Clones of you, will also have diseases

7

Meiosis

unclear division that halves the chromosome number or the haploid number df chromosomes. (2n=n) (4n=2n)

8

Fertilization

fusion of haploid gametes that produces a diploid zygote

9

Sperm

cheap

10

Egg

expensive

11

Seedless Plants

Water is required, sperm swim

12

Seed Plants (Gymnosperms)

Use wind pollination hold on to embryo and nutrients

13

Angiosperms

flowers,seeds,fruit

14

Flower

produces gametes and develops seeds and fruit

15

Seed

consists of embryo ad nutrient stores

16

Fruit

develops from the flower and contains the seeds

17

Structure of flower

Pistal, Stamen, Stigma, anther, ovary, style, filament, petal, sepals

18

Formation of Male gametophyte

Inside anther, Microsporangium contain microsporocyte (2n), meiosis, Microspores (n), Mitosis (each microspore), Pollen grain (One generative cell, mature pollen grains form)

19

Formation of Female Gamtophyte

In Ovule, Megasporocyte (2n), meiosis, Megaspores (n-3 form, Mitosis, 8 megaspores, Seven cells, One with two nuclei, Five disapper, 1 becomes egg

20

Mutualism

both side benefit

21

Pollination

transfer of pollen grains from an another to a stigma

22

Perfect (flowers)

Stamen and Carpels

23

Imperfect (flowers)

Stamens OR Carpels

24

Monoecious

Have both Stamen and Carpels on flower, but separate

25

Dioecious

Stamen Or Carpel on different plants (Imperfect)