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BIOLOGY Term 2 > Plant tissue > Flashcards

Plant tissue Flashcards

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1
Q

Give 2 functions of the root

A
  • absorb water

* anchor the plant in the ground

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2
Q

Functions of stem (3)

A
  • hold plant upright
  • hold leaves in position to absorb sunlight
  • grow
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3
Q

Functions of the leave (2)

A
  • photosynthesize

* transpiration

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4
Q

Give a function of a flower

A

• reproduction

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5
Q

what is embryonic tissue

A
  • can divide by mitosis

* differentiate into any permanent tissue

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6
Q

what is dermal tissue

A

covers the plant body

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7
Q

what is vascular tissue

A

transport in the plant

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8
Q

name the different kinds of plant tissue

A
  • embryonic tissue
  • dermal tissue
  • ground tissue
  • vascular tissue
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9
Q

Give the function of meristematic tissue

A

Divide by mitosis

plant growth & renewal

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10
Q

structure of meristematic tissue

picture this😌

A
  • small brick shape
  • large round nucleus
  • no vacuole
  • no intercellular air spaces
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11
Q

Name and describe 2 places where meristematic tissue can be found in a plant

A

• Apical meristem:

- found in tips of roots & stems 
- divide to allow primary growth in roots and stems

• Lateral meristem / cambium

- found in stems 
- located between xylem & phloem 
- allow stem to grow wider & development of lateral roots
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12
Q

Location of Epidermal Tissue

A

outer layer of roots, stems and leaves

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13
Q

Function of epidermal tissue

A

protects the plant against drying out & mechanical injury

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14
Q

structure of epidermal tissue

A
  • regular - shaped
  • no intercellular spaces
  • thin call walls
  • transparent
  • covered in waxy cuticle
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15
Q

Give 2 instances where the dermal tissue has to be “modified” to allow the plant to perform special functions

A
  • Root hair: absorption of water

* Stomata: allow gases to come and go

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16
Q

structure of root hair

A
  • thin elongated cell

* large vacuole

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17
Q

function of root hair

A

absorption of water

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18
Q

structure of stomata

A
  • kidney lookin tings
  • inner wall thicker than outer
  • has vacuole
  • has chloroplasts
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19
Q

function of stomata

A

allow gaseous exchange and transpiration

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20
Q

function of trichrome (2)

A
  • help plant against water loss

* plant defense against insects

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21
Q

location of trichome

A

epidermal hairs on stems and leaves

22
Q

structure of trichome

A

singular or multicellular hairs

23
Q

Name 2 functions of ground tissue

A
  • fills spaces

* provides mechanical support inside the plant

24
Q

what are the different types of ground tissue? (4)

A
  • parenchyma
  • chlorenchyma
  • collenchyma
  • sclerenchyma
25
Q

what is the functions of parenchyma? (4)

A
  • storage of water, sugars, starch
  • control turgor pressure
  • filling/packing
  • circulate gases
26
Q

where is parenchyma found?

A

everywhere

27
Q

structure of parenchyma

A
  • thin walled
  • large vacuoles
  • usually round
  • have intercellular spaces
28
Q

location of chlorenchyma

A

palisade and spongy mesophyll found in the leaf

29
Q

structure of chlorenchyma

A

specialized parenchyma that are filled with chloroplasts

30
Q

function of chlorenchyma

A

photosynthesis

31
Q

function of collenchyma

A

mechanical support

strengthening

32
Q

structure of collenchyma

A

thick walls that’s are especially thick at their corners

33
Q

location of collenchyma

A

petiole, stems of herbaceous plants

34
Q

where is sclerenchyma found

A
  • found in stems and also leaf veins
  • hard outer covering of seeds and nuts
  • some fruits
35
Q

function of sclerenchyma

A
  • mechanical support
  • strength
  • protection
36
Q

what is the function of sclerenchyma fibres?

A
  • support and mechanical strength

* important sources of raw material for textiles and other woven goods

37
Q

where is sclerenchyma fibres found

A

stems and leaf veins

38
Q

function is sclerenchyma sclereids

A

• support & mechanical strength

39
Q

structure of sclerenchyma sclereids

A
  • have diff shapes
  • highly thickened walls
  • no living cell components
40
Q

location of stone cells

A
  • hard shells of nuts & many seeds

* gritty texture of fruit

41
Q

Functions of vascular tissue (3)

A
  • transporting tissue in the plant
  • water & mineral salts needs to move from soil to the roots to the leaves
  • organic food made during photosynthesis needs to move down from leaves to rest of the plant
42
Q

name the 2 types of vascular tissue

A

xylem & phloem

43
Q

location of xylem

A

in vascular steele of roots and vascular bundles of stems & leaves

44
Q

function of xylem

A
  • transport water & dissolved minerals from the roots to the leaves
  • strengthened with lignin & serves as a supporting tissue
45
Q

what do xylem vessels and tracheids have in common?

A
  • long & thin
  • hollow
  • cells walls thickened with cellulose & lignin
  • pits
46
Q

structure of xylem vessel

A
  • vessels wider - cylindrical tubes

* have perforation plates -> stack one on the other

47
Q

structure of xylem trachied

A
  • longer & thinner

* ends taper

48
Q

location of phloem

A

in vascular steele of roots & vascular bundles of stems and leaves

49
Q

function of phloem

A

• transports food & organic molecules from leaf to rest of the plant
THATS TRANSLOCATION DUDE

50
Q

structure of phloem (4)

A
  • sieve tubes & companion cells
  • end walls of sieve tubes are perforated to form sieve plate
  • living but have no nucleus
  • thin to slightly thickened walls
  • pits & plasmodesmata

BIOLOGY Term 2 (6 decks)

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