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Pbio 3080 Ohio University > Test 2 cont. > Flashcards

Test 2 cont. Flashcards

1
Q

What is Venation?

A

the way leaf veins are organised in a leaf

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2
Q

the first initial vein in a leaf is called what?

A

the midrib

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3
Q

the midrib can consist of ______ Vascular bundles?

A

Multiple (3-5)

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4
Q

leaf veins are primarily made up of what?

A

Tracheary elements

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5
Q

Grass leaves have ______ Vennation

A

parallel

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6
Q

what is a C3 Plant?

A

a plant that is best at fixing carbon dioxide

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7
Q

what is a C4 Plant?

A

plants that are better at holding and conserving water

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8
Q

C__ cells have a bundle sheath

A

3+4

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9
Q

what is Kranz Anatomy?

A

a bundle sheath with WREATH CELLS and no spongy mesophyll

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10
Q

kranz anatomy has evolved in at least ___ Families

A

10

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11
Q

what are transfusion tracheids?

A

tracheadis that move water from the vascular bundle to the leaf

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12
Q

what is a hypodermis?

A

an epidermal layer under the epidermis

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13
Q

what is the identifying factgor of a resin canal?

A

the epithelial cells that surround it.

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14
Q

T/F Pine Needles have a Vascular cambium

A

True

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15
Q

what are hydathodes?

A

pores that allow for the release of water

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16
Q

what is the purpouse of hydathodes?

A

to reduce embolism

17
Q

what are bulliform cells?

A

motor cells of the plant

18
Q

bulliform cells are on what side of the leaf?

A

the adaxial side

19
Q

how do bulliform cells work?

A

when they fill up with water they push out and unfold the leaf, when the water is lost they deflate/compress and curl up the leaf

20
Q

what are root nodules?

A

little balls of tissue in the root that house rhysobium

21
Q

bud scales are housing what?

A

The shoot apical meristem

22
Q

the creation of a leaf trace is a part of which process?

A
23
Q

what is the difference in shade leaves and sun leaves?

A

location, and size

24
Q

shade leaves are ______ and sun leaves are_____.

A

large, small

25
Q

stomata occur on all ____ parts

A

areal

26
Q

stomata usually refers to what?

A

pore and gaurd cells

27
Q

how do stomata work?

A

with the presence of water the stomata inflates keeping it open for gas exchange. when water leaves they deflate and close

28
Q

Eudicot (and some monocot) gaurd cells have what unique structure?

A

ledges

29
Q

leafs can be these -stomatic

A

amphistomatic, epistomatic, and hypostomatic

30
Q

what is an amphistomatic leaf?

A

a leaf with stomata on both sides

31
Q

what is an epistomatic leaf?

A

a leaf with stomata on the adaxial surface

32
Q

what is a hypostomatic leaf?

A

a leaf with stomata on the abaxial surface

Pbio 3080 Ohio University (5 decks)

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