Plants

Question 0

What is a protenema?

Answer 0

A mass of tangled green filaments.

Question 1

What is the name of the female and male gametophyte structures in bryophytes

Answer 1

Archegonia - female

Antheridia - male

Question 2

Why do bryophytes not have true roots, stems and leaves?

Answer 2

Because their structures don’t contain vascular tissues. They must draw up water by osmosis.

Question 3

True or false: the zygote is the beginning of the gametophyte stage of the life cycle

Answer 3

False. It is the beginning of the sporophyte(2N) life cycle.

Question 4

What does the sporophytes capsule contain?

Answer 4

Spores (N). Haploid reproductive structures that develop by mitosis.

Question 5

What are the three groups of seedless vascular plants?

Answer 5

Horsetails, club mosses and ferns.

Question 6

What are roots?

Answer 6

Underground organs that absorb water and minerals

Question 7

What are leaves?

Answer 7

Photosynthetic organs that contain one or more bundles of vascular tissue.

Question 8

What are stems?

Answer 8

Supporting structures that connect roots and leaves, carrying water and nutrients between them.

Question 9

Bundles of vascular tissue is gathered into …?

Answer 9

Veins made of xylem and phloem.

Question 10

What is the difference between rhizomes and rhizoids?

Answer 10

Rhizomes are underground stems that connect ferns; rhizoids are root-like structures that anchor bryophytes to the ground and absorb water and nutrients.

Question 11

What are the leaves of ferns called?

Answer 11

Fronds.

Question 12

What stage of the fern’s life cycle is the dominant stage?

Answer 12

Diploid sporophyte stage.

Question 13

Ferns’ spores develop on the underside of their fronds in tiny containers called 1)_________. These containers are grouped into clusters called 2)_______.

Answer 13

1) sporangia. Singular : sporangium.

2) sori.

Question 14

What is the primary difference between gymnosperms and angiosperms?

Answer 14

Gymnosperms bear their seeds on the surface while angiosperms have their seeds covered within a layer of tissue (fruit).

Question 15

True or false: seed plants require water for reproduction.

Answer 15

False. They have cones or flowers, the transfer of sperm by pollination, and the protection of embryos in seeds.

Question 16

What are the seed-bearing structures of seed plants?

Answer 16

Cones and flowers.

Question 17

The male gametophyte is contained in a tiny structure called a …

Answer 17

Pollen grain.

Question 18

How is the pollen grain carried to the female reproductive structure ?

Answer 18

By wind, insects or small animals.

Question 19

What is pollination?

Answer 19

The transfer of pollen from the male reproductive structure to the femal reproductive structure is called pollination.

Question 20

What is the difference between a seed and a spore.

Answer 20

Seed: diploid; protective covering; surrounded by nutrient rich solution; female reproductive structure;

Spore: haploid; unicellular; reproduces by mitosis.

Question 21

What are the four groups of gymnosperms?

Answer 21

Gnetophytes, cycads, ginkgoes and conifers.

Question 22

What is the most common gymnosperm?

Answer 22

Conifers.

Question 23

What is a fruit?

Answer 23

It has a wall of tissue surrounding the seed.

Question 24

What is a flower?

Answer 24

A female reproductive organ that contain ovaries, which surround and protect the seeds.

Question 25

What are advantages of developing the fruit?

Answer 25

When an animal it's a fruit seeds from the corn fruit generally enter the animals digestive system by the time the seeds have leave the digestive system the animal may have traveled many kilometers by using free to check animals flowering plants increase the range is they inhabit spreading seeds over hundreds of square kilometres.

Question 26

What are the two classes within the angiosperms?

Answer 26

Monocots and dicots.

Question 27

What are monocots and dicots named after?

Answer 27

They are named after the number of seed leaves they have. Monocots have one while dicots have two.

Question 28

What is the first leaf or the first pair of leaves produced by the embryo of a seed plant?

Answer 28

A cotelydon.

Question 29

What is pollen drop?

Answer 29

Sticky secretion on the scales of female cones that ensures pollen grains stay on the female come.

Question 30

What structure of the flower enclosed the bud before it opens, and protects the flower while it is developing?

Answer 30

sepal.

Question 31

What is the function of the petals?

Answer 31

Brightly coloured structures found just inside the sepal. They attract insects and other pollinators to the flower. They do not produce reproductive cells.

Question 32

What is the stamen?

Answer 32

The male parts of the flower ; the anther and filament.

Question 33

What is the structure that has a long, thin stalk that supports an anther?

Answer 33

The filament.

Question 34

What is the function of an anther?

Answer 34

An oval sac where meiosis takes place, produces haploid male gametophytes- pollen grain.

Question 35

What are the innermost parts of a flower that produce the female gametophytes?

Answer 35

Carpels (pistils)

Question 36

What is an ovary?

Answer 36

At the base of the style that contains one or more ovules where female gametophytes are produced.

Question 37

What is the stalk-like structure that the diameter of the carpel narrow into ?

Answer 37

Style.

Question 38

What is the stigma?

Answer 38

Stick portion at the top of the style where pollen grain frequently lands.

Question 39

What is the product of the two polar nuclei and the sperm cell fusing?

Answer 39

Triploid endosperm.

Question 40

How are most gymnosperms and some angiosperms pollinated?

Answer 40

By wind.