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General Biology II > Gymnosperms > Flashcards

Gymnosperms Flashcards

(47 cards)

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1
Q

Seeds are ___________ to spores

A

REPRODUCTIVELY SUPERIOR

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2
Q

What are is the primary means of r4eproduction and dispersal of Gymnosperms and angiosperms?

A

SEEDS

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3
Q

_________________ is further advanced in seeds

A

EMBRYONIC DEVELOPMENT

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4
Q

Seeds contain an abundant __________ supply

A

FOOD

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5
Q

Each seed has a protective _____________

A

SEED COAT

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6
Q

What are gymnosperms?

A

Gymnosperms are vascular plants with seeds

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7
Q

Gymnosperms are totally ___________ or on _______ (naked)

A

EXPOSED

CONES

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8
Q

Gymnosperms produce wind-borne ________________

A

POLLEN GRAINS

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9
Q

What are the four phyla of gymnosperms?

A

Pinophyta

Ginkophyta

Cycadophyta

Gnetophyta

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10
Q

Which phyla has the largest seed plants?

A

Phylum Pinophyta

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11
Q

What are five examples of organisms from the phylum Pionophyta? (pshfc)

A

PINES

SPRUCES

HEMLOCKS

FIRS

CEDARS

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12
Q

What is a the common name for organisms from the phylum pinophyta?

A

CONIFERS

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13
Q

Conifers have leaves in the form of __________, some scales

A

NEEDLES

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14
Q

Conifers distribute pollen by ___________, not water

A

WIND

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15
Q

Where are seeds located in conifers?

A

CONES

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16
Q

What is the conifer’s dominant generation?

A

SPOROPHYTE

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17
Q

Are conifers diecious or monoecious?

A

MONOECIOUS

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18
Q

What does the term monoecious mean?

A

It means that separate male and female reproductive parts in different place s on the same tree. (in strobili called cones)

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19
Q

Most conifers are ____________, a few are deciduous

20
Q

What are conducting cells called in conifers?

21
Q

What are microspores?

Study These Flashcards
A

Extremely small MALE gametophytes

22
Q

What are megaspores?

Study These Flashcards
A

Extremely small FEMALE gametophytes

23
Q

Most organisms from the phylum ___________ are extinct and only a few left

Study These Flashcards
A

PHYLUM CYCADOPHYTA

24
Q

Organisms from the phylum Cycadophyta look like ___________ or __________________ and are tropical or subtropical

25
Are organisms from the phylum Cycadophyta monecious or dioecious?
DIOECIOUS
26
What does the term diocious mean?
Dioecious means that there are seed cones on separate female and male plants
27
How do organisms from the phylum Cycadophyta reproduce?
They reproduce with pollen and seeds in cone like structures
28
What are the three "genera" of organisms from the phylum Gnetophyta?
Welwitschia Ephedra Gnetum
29
What phylum contains the most advanced gymnosperms?
PHYLUM GNETOPHTYA
30
What makes organisms from the phylum Gnetophyta unique among gymnosperms?
They share traits with angiosperms
31
In what two ways are organisms from the phylum Gnetophyta comparable to angiosperms?
They have conducting cells called vessel elements like angiosperms The have cone clusters that resemble flower clusters
32
What is the organisms from the phyla Gnetophyta that has tropical vines, shrubs, and trees,
Gnetum
33
What is the organism from the phyla Gnetophyta that has a broad leaf like an angiosperm?
Gnetum
34
What is the organism from the phyla Gnetophyta that has "Naked seeds"
Gnetum
35
What is the organism from the phyla Gnetophyta that exists as shrubs and vines in dry temperate and tropical areas?
Ephedra
36
What is the organism from the phyla Gnetophyta that has pollen cones that looks like flowers?
EPHEDRA
37
What is the organism from the phyla Gnetophyta that has pollen cones that resembles equisetum with small leaves and jointed stem?
Ephedra
38
What is the organism from the phyla Gnetophyta that is the source of ephedrine which raises heart rate and blood pressure?
Ephedra
39
___________ IS THE ORGANISM FROM THE PHYLUM gNETOPHYTA THAT IS A SINGLE SPECIES THAT EXISTS IN THE DESERT OF SOUTHWEST AFRICA
welwitschia
40
What does welwitschia survive on?
FOG
41
What is the organism that has a long tap root and two 2-meter long leaves?
WELWITSCHIA
42
Organisms from the phylum _______________ may be the oldest living seed plant
GINKGOPHYTA
43
Are organisms from the phylum ginkgophyta dioecious or monoecious?
DIOECIOUS
44
What does the term dioecious mean?
There are separate male and female plants
45
What is the sole member of the phylum Ginkgophyta?
Gingko biloba
46
Where does the female ginkgo produce seeds?
DIRECTLY ON BRANCHES
47
What is the theory behind gingko supplements?
That is may enhance neurological functioning by increasing blood flow to the brain

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