BIS 2C Angiosperms

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21 Terms

1
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<p>What structures do all vascular plants have?</p>

What structures do all vascular plants have?

xylem and phloem

2
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<p>What are the synapomorphies of vascular plants?</p>

What are the synapomorphies of vascular plants?

branching, independent sporophyte, roots, tracheids

3
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<p>Which life stage dominates vascular plants?</p>

Which life stage dominates vascular plants?

Sporophyte (diploid, 2n)

4
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<p>What is the function of guard cells?</p>

What is the function of guard cells?

Regulate gas exchange by opening and closing stomata

5
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<p>How are vascular bundles arranged in monocots vs. eudicots?</p>

How are vascular bundles arranged in monocots vs. eudicots?

Monocots = scattered; Eudicots = in a ring

6
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<p>What are tracheids and vessel elements?</p>

What are tracheids and vessel elements?

xylem cells that transport water; dead at maturity and lignified

7
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<p>What group first evolved vessel elements?</p>

What group first evolved vessel elements?

Angiosperms and gnetophytes

8
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<p>What’s the difference between cohesion and adhesion in water?</p>

What’s the difference between cohesion and adhesion in water?

Cohesion = water sticks to water; Adhesion = water sticks to other surfaces

9
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<p>What does the Pressure-Flow Model explain?</p>

What does the Pressure-Flow Model explain?

How sugars move through the phloem from sources (high pressure) to sinks (low pressure)

10
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<p>What kind of leaves do lycophytes have?</p>

What kind of leaves do lycophytes have?

Microphylls = small leaves with one unbranched vein

11
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<p>What is a strobilus?</p>

What is a strobilus?

A cone-like cluster of sporangia (spore-producing structures)

12
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<p>What is heterospory?</p>

What is heterospory?

Having two types of spores: microspores (male) and megaspores (female)

13
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<p>What are megaphylls?</p>

What are megaphylls?

Large, branched leaves that are highly vascularized

14
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<p>What are the three main organs of a vascular plant?</p>

What are the three main organs of a vascular plant?

Roots, shoots, and leaves

15
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<p>What are root hairs for?</p>

What are root hairs for?

Increase surface area for water and nutrient absorption

16
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<p>What’s the difference between microphylls and megaphylls?</p>

What’s the difference between microphylls and megaphylls?

Microphylls = one vein (lycophytes); Megaphylls = branched veins (ferns + seed plants)

17
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<p>How do monocots and eudicots differ in their floral parts?</p>

How do monocots and eudicots differ in their floral parts?

Monocots = multiples of 3; Eudicots = multiples of 4 or 5

18
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<p>What root system do monocots have vs. eudicots?</p>

What root system do monocots have vs. eudicots?

Monocots = fibrous roots; Eudicots = taproot

19
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<p>What is the evolutionary trend from bryophytes to vascular plants?</p>

What is the evolutionary trend from bryophytes to vascular plants?

Shift from gametophyte dominance to sporophyte dominance

20
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<p>What are the # of cotyledons on monocots and eudicots?</p>

What are the # of cotyledons on monocots and eudicots?

Mono = 1; Eudi = 2

21
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What are the main innovations of vascular plants?

Vascular tissue, lignin, roots, true leaves, and dominant sporophyte