Bio 1011 Chapter 29

Question 1

bryophytes

Answer 1

Informal name for a moss, liverworts, mosses, and hornworts. Lack vascular system, (nonvascular), live on land.

Question 2

homosporous

Answer 2

one type of sporangium produced single kind of spore develops into a bisexual gametophyte

Question 3

strobilus

Answer 3

Technical term for a cluster of sporophylls knows commonly as a cone, found in most gymnosperms and some seedless vascular plants.

Question 4

leaf

Answer 4

The main photosynthetic organ of vascular plants.

Question 5

rhizoids

Answer 5

generally serve only to anchor the plants, Unlike roots, not composed of tissues. do not play a primary role in water and mineral absorption.

Question 6

Antheridium

Answer 6

Male gametangium. Produce and protect sperm

Question 7

stoma

Answer 7

A microscopic pore surrounded by guard cella in the epidermis of leaves and stems, allows gas exchange .

Question 8

heterosporous

Answer 8

two types of sporangium each giving rise to a male/female unisexual gametophyte
ex: lycopods, water ferns, and all seed plants

Question 9

liverwort

Answer 9

A small, herbaceous, nonvascular plant that is a member of the phylum Hapatophyta.

Question 10

Microphyll

Answer 10

Small leaf with a single unbranched vein.

Question 11

gymnosperm

Answer 11

Seed plant that produces naked seeds, conifers.

Question 12

nonvascular plants

Answer 12

small plants that cannot easily transport food and water through the plant.

Question 13

vascular plants

Answer 13

plants that can transport food (sugar) and water throughout the plant

Question 14

xylem

Answer 14

tubes in vascular plants that transport water and minerals

Question 15

hornworts

Answer 15

A small, herbaceous, nonvascular plant that is a member phyllum Anthocerophyta

Question 16

lycophyte

Answer 16

A informal name of phylum Lycophyta, includes club mosses, spike mosses and quillworts.

Question 17

Megaphylls

Answer 17

in monilophytes more than one vascular strand enters the leaf and branches within the leaf

Question 18

Monilophytes

Answer 18

A informal name of phylum Monilophyta, includes ferns, horsetails and whisk ferns.

Question 19

phloem

Answer 19

Phloem tissue transports solutes (dissolved substances) mainly sugars like sucrose, round plants

Question 20

Gametophyte

Answer 20

Haploid, one set of DNA, creates gametes by mitoses which become sporophytes

Question 21

Sporophyte

Answer 21

Diploid, two sets of DNA, creates haploid spores by meiosis which become gametophytes

Question 22

Microspores

Answer 22

in microsporangium, makes male gametophyte

Question 23

Seta

Answer 23

The elongated stalk of a bryophyte sporophyte.

Question 24

Archegonia

Answer 24

Female gametangia, vase shaped, produces egg

Question 25

sorus

Answer 25

a cluster of sporangia on a fern sporophyll. what fern spores are produced.

Question 26

Angiosperms

Answer 26

are plants that develop vessels (angio) for their seeds (sperms) called ovules. Angiosperms are flowering plants

Question 27

alternation of generations

Answer 27

the alternation of two or more different forms in the life cycle of a plant or animal. (diploid form sporophyte - haploid form gametophyte)

Question 28

sporophylls

Answer 28

leaflike structures of the sporophyte generation that bear spores

Question 29

Seeds

Answer 29

zygote surrounded by endosperm and protective covering. store food

Question 30

apical meristem

Answer 30

group of meristematic cells at the apex of shoot and root that by cell division lay the foundation of the primary plant body

Question 31

Anther

Answer 31

sac containing pollen and thus male gametophytes

Question 32

tracheids

Answer 32

are elongated cells in the xylem of vascular plants, serving in the transport of water

Question 33

sporopollenin

Answer 33

layer of a durable polymer. prevents exposed zygotes from drying out (also found in land plant spore walls)

Question 34

protonema

Answer 34

When a moss first grows from the spore, it grows as a protonema which develops into a leafy gametophoyte.

Question 35

Megaspores

Answer 35

in megasporangium, make female gametophyte

Question 36

embryophytes

Answer 36

Alternate name for land plants that refers to their shared derived trait of multicellular, dependent embryos.

Question 37

moss

Answer 37

Small, spore leaves have no veins, no roots, not green

polster, unisex (phylum Bryophyta.)

Question 38

Peat

Answer 38

Extensive deposits of partially decayed organic material

Question 39

gametophore

Answer 39

The mature gamete-producing structures of a moss gametophyte.

Question 40

Seedless vascular plant

Answer 40

plats has vascular tissue but lacks seeds. club mosses and ferns

Question 41

Vascular tissue

Answer 41

tissue that conducts water and nutrients through the plant body in higher plants

Question 42

root

Answer 42

An organ in vascular plants that anchors the plant and enables it to absorb water and minerals from the soil.

Question 43

Lignin

Answer 43

Substance that strong polymer cell wall (in secondary xylem)

Question 44

Peristome

Answer 44

series of teeth like structures that allow spores to escape

Question 45

Gametangium

Answer 45

Sexual reproductive structure that contains a nucleus of male or female mating type