Plants Flashcards

(52 cards)

1
Q

Leaf adaptation

A

-

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2
Q

tendrils

A

-Leaf tendrils are only one
way that plants have
evolved in response to
selection for increased
support during growth-
-

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3
Q

taproot system

A

comprises one thick, cylindrical main root known as the primary root

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4
Q

fibrous root

A

-monocot

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5
Q

adventitious roots

A

-plant roots that form from any nonroot tissue

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6
Q

exodermis

A

-outer layer of root Cortex ,responsible for the radial flow of water and ions and nutrients

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7
Q

endodermis

A

-inner layer of root cortex

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8
Q

pericycle

A

-lies inside the endodermis ,outer most part of the Steele plants

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9
Q

eudicot

A

-flowering plant who has two seed leaves -forms a circle

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10
Q

secondary growth

A

-

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11
Q

primary xylem

A
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12
Q

primary phloem

A
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13
Q

cork cambium

A
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14
Q

vascular cambium

A

-produces secondary xylum

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15
Q

Sclerenchyma cells

A

Cells with highly-lignified secondary cell walls, that are dead upon maturityprovide structural support to the plant. They have thick, highly-lignified secondary cell walls, making them rigid and tough. These cells lose their protoplasm at maturity, meaning they are dead when fully developed.

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16
Q

pericycle

A
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17
Q

apoplectic pathways

A

the pathway in which water travels across the root to the xylem only through the cytoplasm of plant cells

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18
Q

aquaporins

A

the water-conducting channel proteins that span the plant cell’s plasma membrane?

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19
Q

epiphyte

A

A plant that grows on an another plant

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20
Q

shoot system

A

system above aground ,(leaves and steam )

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21
Q

active transport mechanism

A

two ; symport ,anti port

22
Q

flaccid

A

-hard and rigid

23
Q

turgid

24
Q

prairie

A

-plant very fertile

25
desert soil
-wather evaporate ,leaves behinds salt
26
ground system
27
vasular system
28
fibrous root system
- good at retrieving water easily monocot
29
homoplacsis
30
plasma membrane
-selectively permeable
31
apomixis
when a diploid embryo can form from an unfertilized egg
32
Sepal in plant
33
imbibition
dry seeds plants absorbing water
34
Guttations
-when roots pressure is strong enough to force water out of leafs opening .Water is pushed up and out of veins
35
role of stomate in transport in plants
-transport losses of water must be regulated to prevent rapid dessication
36
Cuticles
-on the surface of a leafs
37
Guard cells and and stomatal action
-pores opens up -blue lights stimulates the guards cells -electrochemical gradient ,cotransporter When concentration is higher ,water diffuses inside.
38
xerophyte
have adaptation to hot ,dry enviroment (Thickened cuticle, sunken stomata, water storage in stems, modified leaves)
39
Translation
-
40
source vs sinks
source:Any region of plant where organic substances are loaded into phloem sinks :any region where organic substances are unloaded from phloem.
41
tension
-transipiration,the loss of water vapour from the leaves creates a negative pressure in tension xylem. water
42
Which of the following structures is NOT involved in nourishing the plant embryo during its earliest phases of its life?
-mesocarps
43
vegetative reproduction
Vegetatively-produced offspring typically exhibit less phenotypic variation compared to those produced via sexual reproduction
44
The seed's endosperm arises as the fertilization of ________, the zygote from the fertilization of ________, and the pericarp from __________.
45
plants hormones
-Auxin Ethylene Gibberellins
46
Polar transport
- No Charged outside of the sells
47
Abscision zone
48
Auxin on roots
-promote root inhabitation growth of pre-existing roots -lateral branching of roots -
49
Phototropism
-growth response to directional light source -
50
Gibberins
-synthesized in shoot and root tips -increase cell division rate and cell elongation -fruit enlargement -help seeds and buds break 'dormancy'
51
cohesion-tension
long transport of water in plants
52