Chapter 17

Question 1

apical meristems

Answer 1

Growth-producing regions of cell division found near the tips of stems and roots

Question 2

vascular tissue

Answer 2

a network of thick-walled cells joined into narrow tubes that extend throughout the plant body

Question 3

xylem

Answer 3

vascular tissue made up of dead cells that form microscopic pipes conveying water and minerals up from the roots

Question 4

phloem

Answer 4

vascular tissue consisting of entirely living cells that distributes sugars throughout the plant

Question 5

lignin

Answer 5

Components of some cell walls that thickens and reinforces.

Question 6

gametangia

Answer 6

male and female gametes in mosses and ferns

Question 7

pollen grains

Answer 7

structures in pines and flowering plants that contain the sperm-producing cells

Question 8

embryophytes

Answer 8

the fertilized egg that develops into an embryo while attached to and nourished by the parent plant.

Question 9

sporangia

Answer 9

spores within protective structures

Question 10

spore

Answer 10

a cell that can develop into a new organism without fusing with another cell

Question 11

bryophytes

Answer 11

seedless, nonvascular plants

Question 12

vascular plants

Answer 12

contain lignin-hardened vascular tissues

Question 13

seedless vascular plants

Answer 13

Have vascular tissues but no seeds. Mosses and ferns

Question 14

gymnosperms

Answer 14

Earliest seed plants that are not produced in specialized chambers.

Question 15

angiosperms

Answer 15

Flowering plants whose seeds are in protective chambers.

Question 16

alteration of generations

Answer 16

Where the diploid and haploid stages are distinct.

Question 17

gametophyte

Answer 17

The haploid generation of the plant that produces gametes

Question 18

sporophyte

Answer 18

The diploid generation that produces spores

Question 19

ovules

Answer 19

Parts of the ovulate cone

Question 20

pollination

Answer 20

occurs when a pollen grain lands on an ovulate scale and enters an ovule

Question 21

seed coat

Answer 21

the ovules integument

Question 22

sepals

Answer 22

the outer layer of the floral circle

Question 23

petals

Answer 23

the area below the sepals

Question 24

stamens

Answer 24

the male component of the flower

Question 25

anther

Answer 25

a sac at the top of the filament of the stamen

Question 26

carpal

Answer 26

the female floral reproductive structure

Question 27

ovary

Answer 27

a unique angiosperm adaptation that encloses the ovules