Gymnosperms Flashcards

1
Q

Gymnosperms

Gymno- meaning

-sperm meaning

A

Naked

Seeds

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2
Q

Gymnosperms

Do they bear fruit?

A

No

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3
Q

Gymnosperms

Land adaptations? (3)

A

All from previous

Sperm dont need water to swim

Seeds

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4
Q

Gymnosperms

Land limitation?

A

Depend on wind to move sperm-producing structures to the eggs

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5
Q

Gymnosperms

What are the 3 parts of a seed

A

Sporophyte embryo

Nutritive tissues

Seed coat

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6
Q

Gymnosperms

What are the 4 phyla?

A

Pinophyta

Ginkophyta

Cycadophyta

Gnetophyta

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7
Q

Gymnosperms: Pinophyta

General names (3)

A

Cedars

Spruces

Redwoods

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8
Q

Gymnosperms: Pinophyta

Coniferous means?

A

Cone (strobila) bearing

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9
Q

Gymnosperms: Pinophyta

How many species?

A

approx 600

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10
Q

Gymnosperms: Pinophyta

Leaves =

A

Needles

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11
Q

Gymnosperms: Pinophyta

Fassicle =

A

A bunch of needles 1-8

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12
Q

Gymnosperms: Pinophyta

Hypodermis purpose?

A

Water retention

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13
Q

Gymnosperms: Pinophyta

Sclerenchyma purpose?

A

Support

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14
Q

Gymnosperms: Pinophyta

Stoma location and purpose?

A

Found in the depressions in epidermis

Water retention

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15
Q

Gymnosperms: Pinophyta

Vascular tissue found in __

A

Bundles

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16
Q

Gymnosperms: Pinophyta

Mesophyll is not ___

A

Differentiated

17
Q

Gymnosperms: Pinophyta

Resin canal purpose?

A

Chemical defense vs fungi and insects

18
Q

Gymnosperms: Pinophyta

Each megasporophyll has _ ovules

19
Q

Gymnosperms: Pinophyta

Each ovule has a __

A

Megasporangium

20
Q

Gymnosperms: Pinophyta

What 2 structures make up a megasporangium?

A

Nucellus

Megasporocyte

21
Q

Gymnosperms: Pinophyta

What is a nucellus?

A

Tissue where embryo grows up

Like a placenta

22
Q

Gymnosperms: Pinophyta

Megasporocyte creates how many megaspores?

How many live/die

A

4

3 die, 1 lives and becomes mature female gametophyte

23
Q

Gymnosperms: Pinophyta

Human uses

3 edible parts of pinophyta?

A

Phloem

Vascular cambium

Seeds

24
Q

Gymnosperms: Pinophyta

Human uses general (7)

A

Wood

Pharmaceuticals

Paper

Dyes

Ornamental

Resin

Turpintine

25
Gymnosperms: Ginkophyta General name
Ginko trees
26
Gymnosperms: Ginkophyta How many species?
1
27
Gymnosperms: Ginkophyta Extinct in the \_\_\_
Wild
28
Gymnosperms: Ginkophyta Considered extinct until \_\_\_ Found in cultivation where (3)
1690 Palaces Temples Monasteries
29
Gymnosperms: Ginkophyta Lifecycle Similar to __ except \_\_\_
Similar to pinophyta except dioecious
30
Gymnosperms: Ginkophyta Human uses (2)
Ornamental Herbal remedies
31
Gymnosperms: Cycadophyta General name
Cycad
32
Gymnosperms: Cycadophyta How many species
approx 300
33
Gymnosperms: Cycadophyta Lifecycle is similar to ___ except \_\_\_
pinophyta dioecious
34
Gymnosperms: Cycadophyta Human use (1)
Ornamental
35
Gymnosperms: Gnetophyta How many species
approx 70
36
Gymnosperms: Gnetophyta Synapomorphy?
Vessel elements Other gymnosperms only have tracheids
37
Gymnosperms: Gnetophyta General name
Ephedra
38
Gymnosperms: Gnetophyta Human uses (2)
Pharmeceuticals: ephedrine Herbal teas