plant physiology Flashcards

1
Q

bryophytes

A

lack vascular tissue
no roots or xylem
reproduce by spores
tiny
ex:mosses

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2
Q

tracheophytes

A

xylem and phloem
root and leaves
spores and seeds
gymnosperms and angiosperms

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3
Q

gymnosperms

A

conifers

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4
Q

angiosperms

A

flowering plants

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5
Q

roots

A

1-absorb nutrients
2-anchor the plant
3-stores the food

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6
Q

epidermis

A

absorption

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7
Q

cortex

A

storage of starch and organic substances

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8
Q

vascular cylinder

A

xylem and phloem

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9
Q

endoderma

A

select what minerals enter the vascular cylinder

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10
Q

asexual reproduction in plants

A

vegetative part produce a clone

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11
Q

sexual reproduction in plants

A

sperm joins egg and form sed

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12
Q

sepals

A

enclose the plant before opening

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13
Q

petals

A

colored leaves attract pollinator

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14
Q

pistil

A

female part

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15
Q

stamen

A

male part

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16
Q

dermal tissue

A

protective layer made of epidermal cells

17
Q

cuticle

A

waxy Layer protects layers surface

18
Q

trichomes

A

projection for protection

19
Q

vascular tissue

A

xylem and phloem

20
Q

xylem

A

water and minerals

21
Q

phloem

A

food

22
Q

auxins

A

stem elongation
softens the cell wall

23
Q

phototropisms

A

unequal distribution of auxins

24
Q

abscisic acid

A

promotes growth and seed dormancy

closes stomata during water stress

25
Q

ethylene

A

rippening

26
Q

cytokinins

A

cytokinesis and cell division

27
Q

gibbelins

A

stem and leaf elongation

28
Q

stomata

A

gas exchange, takes in CO2 and releases o2

29
Q

Guard cells

A

open and closes stomata depending on water pressure

30
Q

functions of stems

A

-support of the plant and carries leaves and flowers
-transportation of water, nutrients, and food
-storage