Anatomy root stem leaf Flashcards

1
Q

many cells of –protude in the form of unicellular root hairs in dicot roots

A

epiblema

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2
Q

chara of CORTEX of dicot roots

A

thin walled parenchymatous cells with intercellular spaces

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3
Q

————comprises a single layer of barrel shaped cells without intercellular spaces

A

epidermis

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4
Q

———-has suberin in their tangential and radial walls

A

epiderml cells

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5
Q

pericycle of dicot root chara

A

thick walled parenchymatous cells

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6
Q

initiation of lateral roots vascular cambium during secondory growth takes place in

A

pericycle

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7
Q

pith of dicot root

A

small and insconspicuous

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8
Q

what is conjuctive tissue

A

parenchymatous cells lie bet xylem and phloem

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9
Q

usualluy how many xylem and phloem patches in dicot roots

A

2-4

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10
Q

in dicot roots ,,later —-froms between xylem and phloem

A

cambium ring

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11
Q

STELE

A

pericycle
vascular bundle
pith

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12
Q

in monocot roots usuallyy there are ——xylem bundles

A

six (polyarch)

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13
Q

pith of monocot roots is

A

large and well developed

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14
Q

———–roots do not undergo any secondary growth

A

monocot roots

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15
Q

cuticle seen in

A

sstem

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16
Q

epidermis of dicot stem covered with a thin layer of cuticle and may bear

A

trichome and a few stomata

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17
Q

what constitute pith in dicot stem

A

cells arranged in multiple layers between epidermis and pericycle

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18
Q

innermost layer of cortex in dicot root is

A

endodermis

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19
Q

three sub zones in cortex part in dicot stem

A

hypodermis
cortical layers
endodermis

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20
Q

hypodrmis consistes of

A

few layers of collenchymatous cells

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21
Q

hypodermis fn

A

provides mechanical strength to young stem

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22
Q

cortical layer features

A

rounded thin walled parenchymatous cells with conspicous intercellular spaces

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23
Q

—————are rich in grains and are referred to as starch sheath

A

endodermis

24
Q

pericycle in dicot stem is in the form of

A

semilunar oatched of sclerenchyma

25
Q

in beween vascular bundles in in dicot stem there r a few layers of radially placed ——cells which constitute——-

A

parenchymatous cells which constitutes medullary rays

26
Q

vascular bundles in dicot stem is

A

conjoint open with endarch protoxylem

27
Q

———–with large intercellular spaces constitutes central portion of stem called pith

A

rounded parenchymatous cells

28
Q

hypodermis in monocot stem

A

schlerenchymatous

29
Q

vascular bundles arrangement in dicot stem

A

ring like

30
Q

vascular bundle arrangedment in monocot stem

A

scattered and each surrounded by sclerenchymatous bundle sheath and a large conspicous parenchymatous ground tissue

31
Q

ground tissue in monocot stem

A

parenchymatous

32
Q

vascular bundles in monocot stem

A

conjoint and closed

33
Q

phloem parenchyma is absent in

A

monocot stem

34
Q

water containing caviyies are present within vascular bundles of

A

monocot stems

35
Q

epidermis has a ——-type of cuticle in dicot leaf

A

conspicous

36
Q

3 main parts of dicot leaf

A

epidermis
mesophil
vascular sytem

37
Q

uppersurface of dicot leaf is called

A

adaxial epidermis

38
Q

——-epidermis generally bears more stomata

A

abaxial

39
Q

tissue between upper and lower epidermis is called

A

mesophyll

40
Q

mesophyll fn and chara

A

posses thin walled chloroplast and carry out photosyenthesis

41
Q

pallisade parenchyma is placed

A

adaxiallyy

42
Q

mesophil has 2 type of cells

A

palisade parenchyma
spongy parenchyma

43
Q

adaxially placed pallisade parenchyma made up of ———-which are arragned ———- and parallel to each other

A

elongated cells
vertically

44
Q

the oval and round spongy parenchyma is situated below

A

below the pallisade cells and extends to lower epidermis

45
Q

vascular bundles in dicot leaves can be seen in

A

veins and midrib

46
Q

size of vascular bundles in dicot leaves depends on

A

size of the veins

47
Q

vascular bundles in dicot leaves are sorrounded by a layer of thick walled

A

bundle sheath cells

48
Q

vascular bundles covered by bundle sheath in which structures

A

monocot stem and dicot leaf

49
Q

in dicot leaves stomata must be presentin abaxial and adaxial epidermis true or false

A

false ;in adaxial epidermis its not mandatory to have stomata ‘'’they may even lack stomata

50
Q

isobilateral leaf otherwise called

A

monocot leaves

51
Q

mesophyl is not differentiated in

A

monocot leaves

52
Q

stomata is present in both of the epidermis in

A

monocot leaves

53
Q

in grasses ,———along the ————-modify themselves into large empty colourless cells called bulliform cellls

A

adaxial epidermis along the veins

54
Q

the leaves get flaccid due to

A

water stress

55
Q

when bulliform cells in leaf absorbed water its called

A

turgid and the leaf gets exposed