Chapter 38 Plant Reproduction

Question 1

Alternation of generations

Answer 1

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

Question 2

Alternation of generations cycle

Answer 2

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

Question 3

Examples of Vegetative Reproduction

Answer 3

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

Question 4

Apomixis

Answer 4

Seeds produced without fertilization

Question 5

Asexual Reproduction Advantages

Answer 5

efficient, if environment doesn’t change

Question 6

Asexual Reproduction Disadvantages

Answer 6

Clones of you, will also have diseases

Question 7

Meiosis

Answer 7

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

Question 8

Fertilization

Answer 8

fusion of haploid gametes that produces a diploid zygote

Question 9

Sperm

Answer 9

cheap

Question 10

Egg

Answer 10

expensive

Question 11

Seedless Plants

Answer 11

Water is required, sperm swim

Question 12

Seed Plants (Gymnosperms)

Answer 12

Use wind pollination hold on to embryo and nutrients

Question 13

Angiosperms

Answer 13

flowers,seeds,fruit

Question 14

Flower

Answer 14

produces gametes and develops seeds and fruit

Question 15

Seed

Answer 15

consists of embryo ad nutrient stores

Question 16

Fruit

Answer 16

develops from the flower and contains the seeds

Question 17

Structure of flower

Answer 17

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

Question 18

Formation of Male gametophyte

Answer 18

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

Question 19

Formation of Female Gamtophyte

Answer 19

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

Question 20

Mutualism

Answer 20

both side benefit

Question 21

Pollination

Answer 21

transfer of pollen grains from an another to a stigma

Question 22

Perfect (flowers)

Answer 22

Stamen and Carpels

Question 23

Imperfect (flowers)

Answer 23

Stamens OR Carpels

Question 24

Monoecious

Answer 24

Have both Stamen and Carpels on flower, but separate

Question 25

Dioecious

Answer 25

Stamen Or Carpel on different plants (Imperfect)