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NEET 2023 > Anatomy 1-plants > Flashcards

Anatomy 1-plants Flashcards

1
Q

egs for sec or cylindrical meristems

A

fascicular vascular cambium
cork cambium
interfascicualr cambium

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2
Q

cells in parenchyma maybe

A

spherical oval round polygonal or elongated in shape

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3
Q

functions of parenchyma

A

photosyenthesis
storage
secretion

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4
Q

collenchyma fns and seen in

A

mech support (also storage(when contain chloroplast) phoosenthesis)
for young stems and petioles of leaf

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5
Q

walls of parenchyma

A

cellulose

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6
Q

walls of collenchyma

A

cellulose hemicelllulose pectin

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7
Q

cells of collenchyma

A

spherical oval polygonal and often contain chloroplast

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8
Q

collenchyma occurs in layers below———-in most of the————–plants

A

epidermis in most of the dicotiledonous plants

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9
Q

During firmation of primary plant body, specific regikns of ———–produce ———
————-and ———

A

Apical meristem
Dermal tissues
Ground tissues
Vascular tissues

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10
Q

On the basis of _——————-sclerenchyma maybe fibres and sclerieds

A

Basis of development origin structure

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11
Q

Sclerieds shapes

A

Spherical ival cylindrical

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12
Q

Sclerieds scene in

A

Fruit walls of nuts
Pulp of fruits likr guava prar sapota
Seed coatd of legumes
Leaves of tea

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13
Q

Phloem transports

A

Food materials usually from leavrs to other parts of the plant

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14
Q

Xylrm transports

A

Watrr and minerals from root to stem and leaves

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15
Q

Which are the mechanical tissues

A

Xylem(dead)
Sclerenchyma(dead)
Chlorenchyma (living)

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16
Q

—————lack vessels in their xylem

A

Gymnosperms

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17
Q

Presence of vessels is a charactetistic feature of ==========

A

Angiosperms

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18
Q

Inner layer of the cell walls of………. Have have thickening which vary in form

A

Trachieds

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19
Q

In flowering plants……. And…… r the main water transporting elements

A

Trachieds and vessels

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20
Q

———have highly thickened walls and obliterated central lumesns

A

xylem fibres

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21
Q

———–maybe either septate or aseptate

A

xylem fibres

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22
Q

=========are interconnected through perforations in their common walls

A

vessel members

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23
Q

xylem parenchyma are living and ———

A

thin walled

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24
Q

cell wall of xylwm praenchyma made up of

A

cellulose

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25
Q

xylem parenchyma stores food in the form of

A

starch or fat and other substances like tannins

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26
Q

radial conduction of waer takes place by

A

ray parenchymatous cells

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27
Q

xylem arrangement and ype in roots

A

protoxylem towards periphery and metaxylem towards centre (exarch primary xylem)

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28
Q

gymnosperms lacks

A

sieve tubes and companion cells

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29
Q

gymnosperms have ———and ———-

A

albuminous cells and sieve cells

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30
Q

end walls of sieve tubes are perforated in a sive like manner to form

A

sieve plates

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31
Q

sieve tube elments morpholoical features

A

long tube like syructures arranged longitudinally and associated with companion cells

32
Q

mature sieve tube element have

A

peripheral cytoplasm
large vacuole
lacks nucleus

33
Q

companion cells are ————-

A

specilaisd parenchymatous cells

34
Q

sieve tube elements and companion cells are are connected by pit fiels present bet

A

common longitudinal walls

35
Q

phloem parenchyma charact

A

elongated tapering cylindricl cells with
dense cytoplasm nucleus

36
Q

cell wall of phloem parenchyma composed of cellulose and has pits through which ——-exist between the cells

A

plasmodesmtal connections

37
Q

phloem parenchym stors

A

food materilas and and other subs like resins
latex
mucilage

38
Q

phloem parenchyma absent in

A

most of the monocoteledons

39
Q

phloem fibres are made up of

A

sclerenchymatous cells

40
Q

phloem fibres generally absent in ———–but found in

A

gen absent in primary phloem but present sec phloem

41
Q

at maturity -lost their protoplasm and become dead

A

phloem fibres

42
Q

————of jute flax hemp are used commercially

A

jute flax hemp

43
Q

protophloem have -sieve tubes

A

narrow

44
Q

phloem fibres (bast fibres ) characteristics

A

much elongated ,unbranched ,have pointed ,needle like apices

45
Q

on the basis of ———there r three tisssue systems

A

structure and location
epidermal tissue system
vascular tissue system and ground tisue sytem

46
Q

epidermal system consists of

A

epidermal cells
stomata
epidrmal appantages like tichomes hairs

47
Q

epidermis made up of

A

elongated compactly arranged cells which form a continous layer

48
Q

epidermis is usually ———-9layered or unlayered

A

single layered

49
Q

epidermal cells are parenchymatous with small amount of ———

A

cytoplasm lining the cell wall and large vacuole

50
Q

outside of epidermis covered with

A

cuticle

51
Q

stomata present in

A

epidermis of leaves

52
Q

stomata regulates

A

transpiration and gaseous exchange

53
Q

each stoma has

A

two bean shaped guard cells

54
Q

——————encloses somatal pore

A

guard cells

55
Q

in grasses guards cells are

A

dumb bell shaped

56
Q

outerwalls of guard cells are —and inner walls of guard cells are ———

A

thin
highly thickened

57
Q

guards cells posses —–and reg the opening and closing of somata

A

chloroplast

58
Q

sometimes a few ——–in the vicinity of guard cells become specialised in their —–and —– and are known as subsidiary cells

A

epidermal cells
size and shape

59
Q

stomatal apparatus

A

stomatal aperture
guard cells
surrounding subsidiary cells

60
Q

root hairs are unicellular elongations of —–

A

epidermal cells

61
Q

trichomes maybe

A

branched unbranched and soft or stiff may even secretory

62
Q

ground tissue system consists of

A

parenchyma collenchyma sclerenchyma

63
Q

parenchymatous in ground t s cells are usually present in

A

cortex
pericycle
pith
medullary rays
primary stems and roots

64
Q

in —-ground tissue consists of ——–walled choloplast containing cells called mesophills

A

in leaves
thin walled

65
Q

cambium is present between xylem and phloem in ——-stems

A

dicot stems

66
Q

cambium posses the ability to form sec xylem and phloem tissues and hence called

A

open vascular bundles

67
Q

vascular bundles arranged in dig=fferent radii as in roots is called

A

radial

68
Q

conjoint means

A

vas bundles same radii
seen in stems and leaves

69
Q

——-vascular bundles usually have phloeam located outerside of xylem

A

conjoint VS

70
Q

——-vascular bundles usually have phloeam located outerside of xylem

A

conjoint VS

71
Q

The meristem which occur between mature tissues

A

Intercalary meristem

72
Q

Tissues have…….. Origin

A

Common origin

73
Q

Growth in plants largely restricted to,…………. Called meristem

A

Specialized regions of active cell division

74
Q

phloem fibres branched or unbranched

A

unbranched

75
Q

ground tissue tissue system alao kniwn as

A

fundamental tissue system

76
Q

vascular TS also called

A

conducting tissue system

NEET 2023 (12 decks)

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