Ch_23B_Gymnosperms Flashcards Preview

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Flashcards in Ch_23B_Gymnosperms Deck (54)
1

1st trees

Gymnosperm

2

1rst tree with flying sperm aka pollen

Gymnosperm

3

Naked Seed

no protective ovary

4

number of Gymnosperm tree and shrub species

760

5

number of Gymnosperm conifer species

550

6

Gymnosperm resin use

insect resistance

7

Gymnosperms have highly developed _ and _ tissues

root, stem

8

Gymnosperm groups/phyla

Conifers, Ginkgoes, Cycads, Gnetophytes

9

Phlyum Confierophyta common word

Conifer

10

Redwood type

Conifer

11

Pine type

Conifer

12

Fir type

Conifer

13

Juniper type

Conifer

14

Cypress type

Conifer

15

Redwood type

Conifer

16

largest tree species

Sequoia

17

Do Conifers have needles or leaves

needles

18

Monoecious

male and female on same individual plant

19

Are conifers monoecious or diecious?

monoecious

20

Largest Living Thing On Earth

The Gerenal Sherman Tree, a Sequoia Conifer

21

Conifer that grows in swamps

Cypress trees

22

Microspores common term

pollen

23

Where do pollen develop on Gymnosperms

male cones

24

After pollen release, the male cones _

die

25

Megaspores common term

eggs

26

Where do megaspores form on Gymnosperms

female cones

27

after fertilization, how long does seed development take for Conifers?

3 years

28

Only tree in Ginkgophyta

Ginkgoes

29

Ginkgoes common name

Maidenhair Tree

30

The only deciduous Gymnosperm

Maidenhair Tree

31

Are Maidenhair Trees dioecious or monoecious?

dioecious

32

Who cultivated Ginkgoes and kept the species alive

Buddhists in China

33

Oldest tree in fossil record

Ginkgoes

34

Ginkgoes produce _ sperm

swimming

35

Female Ginkgoes produce fruit that _ and have _ seeds

smell foul, edible

36

Ginkgoe leaves are processed for _, which some claim helps with _

Ginkgoba, circulation

37

Phylum Cycadophyta common term

The Cycads

38

Common term for Cycads on lawns

Sago Palms

39

Number of Cycad species

140

40

Cycad are located naturally in the _

tropics

41

Cycad plants are _oecious

di

42

Cycad produce large cone-shaped _

strobili

43

Male Cycad Strobuli produce _, and female Cycad Strobuli produce _

pollen, ovule

44

Cycad seeds are edible only after _

poison coat removed

45

Phylum Gnetophyta another term

Gnetophytes

46

number of Gnetophyta species

70

47

Common species of Gnetophyta

Gnetum and Ephedra

48

Genotphyte cones have similar life cycles and semblance to _

flowers

49

Advanced Gymnosperms have efficient _

water transport

50

tropical broad-leaved shrubs and vines, leaves resemble flowers

Gnetum

51

_ Resemble horsetails but with jointed stems

Ephedra

52

Ephedra is a type of _

Gnetophytes

53

This plant use to make drug ephedrine

Ephedra

54

uses of ephedrine

raises blood pressure and heart stimulant