Plant Diversity 2

Question 1

gymnosperm

Answer 1

naked seed

Question 2

gymnosperm characteristics

Answer 2

Woody plants:
– Seeds exposed or on scales of cones = “naked seed”
* Long life-cycles
* Very small gametophytes:
– Male = dessication-resistant pollen
* Wind pollinated
– Female = in ovule of sporophyte

Question 3

seed

Answer 3

Protects embryo
– Stores nutrients
– Can disperse away from
parent
-dormant

Question 4

vascular tissue

Answer 4

xylum phloem for transport

Question 5

Phylum gnetophyla

Answer 5

Tropical vines
– Rare desert plant
– Mormon tea (desert shrub)

Question 6

phylum ginkophyta

Answer 6

Asian
– Fan-shaped leaves
– Dioecious

Question 7

phylum coniferophyta

Answer 7

Most common group
– Pines & other conifers

Question 8

angiosperm characteristics

Answer 8

250,000 species in Phylum Anthophyta
– Most numerous & widespread of seed plants
* Dominant sporophyte
* Highly developed vascular tissue
* Rapid life-cycles; multiple modes of pollination
* Woody or herbaceous

Question 9

flower

Answer 9

Protects developing gametes
– Ensures pollination & fertilization
– Many are self-fertile, but many
others require cross-fertilization
via pollinator

Question 10

fruit

Answer 10

Develops from ovary
– Protects seed
– Aids in dispersal

Question 11

flowers pollinated by wind and water tend to be . . .

Answer 11

Inconspicuous, feathery

Question 12

flowers pollinated by animals tend to be

Answer 12

scented with traits varying based on animal

Question 13

pedicel

Answer 13

stalk that supports the flower

Question 14

receptacle

Answer 14

tipe of the pedicel where the flower parts attach

Question 15

sepal

Answer 15

outer whorl of bracts, which may be green, brown, or colored like the petals; may appear as small as scales or be petal-like

Question 16

calyx

Answer 16

all the sepals

Question 17

petal

Answer 17

colored, white, or even greenish whorl of bracts located just inside the sepals

Question 18

corolla

Answer 18

all the petals, collectively

Question 19

perianth

Answer 19

the corolla and calyx together

Question 20

stamen

Answer 20

pollent bearing structure with filament and anther

Question 21

filament

Answer 21

stalk that supports the anther

Question 22

anther

Answer 22

pollen producing structure

Question 23

carpel

Answer 23

female reproductive structures

Question 24

stigma

Answer 24

receptive tip of the carpel, often sticky or hairy, where pollen is placed, important to pollen germination

Question 25

style

Answer 25

tissue connecting stigma to ovary, often long and narrow, but may be short or absent, pollen must grow through this tissue to fertilize the egg

Question 26

ovary

Answer 26

base of carpel, protects ovules inside, mature to form the fruit

Question 27

Phylum Cycadophyta

Answer 27

Tropical and palm like