Plant Tissues

Question 1

What is a tissue

Answer 1

Group of cells performing a particular function

Question 2

Plant tissues are of 2 types

Answer 2

1. Meristmatic
   2.Permanent tissue

Question 3

Meristamatic tissue ke property

Answer 3

Active division/ dividing cell
Not specialised
Dense cytoplasm
Thin cell wall
No vacuoles
Prominent nuclei

Question 4

Meristamatic tissues found at tip of root n shoot

Answer 4

Apical

Question 5

Meristamatic tissue help in increasing the girth of the plant or lateral growth

Answer 5

Cambium / lateral meristm

Question 6

MT found at nodes of the plant

Answer 6

Intercalary

Question 7

Which helps in growth of the plant in terms of stem n root

Answer 7

Apical

Question 8

Permanent tissue property

Answer 8

Lost capacity to divide
Taken up specialised shape form size function

Question 9

2 types of permanent tissue

Answer 9

Simple PT
Complex PT

Question 10

PT made up of one type of cell

Answer 10

Simple PT

Question 11

PT made of more than one type of cell

Answer 11

Complex PT

Question 12

PT have undergone

Answer 12

Differentiation

Question 13

Simple PT found in

Answer 13

Below epidermis

Question 14

___ is the most common simple PT

Answer 14

Parenchyma

Question 15

Parenchyma used for

Answer 15

Storage

Question 16

Characteristics of parenchyma

Answer 16

Thin cell wall
Unspecialised
Loose packed
Large intercellular space

Question 17

Parenchyma storing chlorophyll

Answer 17

Chlorenchyma

Question 18

Parenchyma providing mechanical support n bending

Answer 18

Collenchyma

Question 19

Collenchyma found in

Answer 19

Tendrils , climbers

Question 20

Collenchyma properties

Answer 20

Elongated
Irregular thickening at corners
Living
Intercellular space less

Question 21

Parenchyma having large cavities

Answer 21

Aerenchyma ( for floating)

Question 22

Aerenchyma found in

Answer 22

Aquatic plants

Question 23

Dead parenchyma

Answer 23

Sclerenchyma

Question 24

Lignified Walls

Answer 24

Sclerenchyma

Question 24

No intercellular spaces in which parenchyma

Answer 24

Sclerenchyma

Question 25

Sclerenchyma structure

Answer 25

Long narrow Lignified ( lignin thickened cornor)

Question 26

Sclerenchyma found in

Answer 26

Around vascular bundles Veins of leaves Husk of coconut Hard coved of seeds n nuts Stems

Question 27

Outermost layer of plant

Answer 27

Epidermis

Question 28

Epidermis characteristics

Answer 28

Continuous single layer of cell No intercellular spaces

Question 29

__ n __ of epidermis is __ wrt the inner layer

Answer 29

Outer layer n side walls are thick

Question 30

Epidermis function

Answer 30

Protection against Transpiration ( waxy coating in aerial plants ) Mechanical injury Invasion by parasitic fungi Facilitates diffusion of gases via stomata ( guard cells )

Question 31

Dessert plants have __ epidermis

Answer 31

Thick

Question 32

In Dessert plants epidermis secretes waxy thing called __ to prevent transpiration n provide protection against __ n ___

Answer 32

Cutin Invasion n mechanical injury

Question 33

Is epidermis present in roots

Answer 33

Yes

Question 34

Root function of epidermis

Answer 34

Bears root hairs helps in absorption n increases the surface area for absorption

Question 35

Cork

Answer 35

As plant grow old secondary meristem in cortex produces layes of cells which r Dead Compactly arranged No intercellular spaces

Question 36

Suberin present in

Answer 36

Cork

Question 37

Suberin is __ ( function )

Answer 37

Impervious to gases n water

Question 38

In complex PT made of diff cells which perform all together a common function

Question 39

Types of complex PT

Question 40

Xylem n phloem also called

Answer 40

Conducting tissues

Question 41

Xylem n phloem also constitute

Answer 41

Vascular bundle

Question 42

Vascular bundle helps in s

Answer 42

Survival of plant in territorial envt

Question 43

Xylem consists of

Answer 43

Tracheids Vessels Xylem fibres Xylem parenchyma

Question 44

Living cells in xylem

Answer 44

Xylem parenchyma

Question 45

Dead cells in xylem

Answer 45

Vessels Tracheids Xylem fibre

Question 46

Which helps in conduction of water vertically

Answer 46

Vessels n tracheids

Question 47

Which has tubular structure in xylem

Answer 47

Tracheids n vessels

Question 48

Xylem n phloem function

Question 49

Phloem consists of

Answer 49

Seive tubes Seive cells Phloem fibres Phloem parenchyma Companion cells

Question 50

Dead cells in phloem

Answer 50

Phloem fibre

Question 51

Who m I ? Tu ular cells with __ walls

Answer 51

Seive tubes with perforated walls

Question 52

Cork tissue is __

Answer 52

Dead tissue

Question 53

Which meristem increases volume of plant

Answer 53

Cambium or lateral

Question 54

Meristamatic tissue undergo __ to form permanent tissue

Answer 54

Differentiation

Question 55

Which meristem or parenchyma provides rigidity n hardness

Answer 55

Sclerenchyma

Question 56

Function of epidermis in dessert plants

Answer 56

Thick n made of cutin to prevent transpiration

Question 57

Function of epidermis in aerial plants

Answer 57

Prevent mechanical injury - invasion by parasites n fungi Prevent transpiration

Question 58

Function of epidermis in cork

Answer 58

Dead Suberin walls Compact walls no intercellular spaces Which is impervious to gases n water

Question 59

Epidermis also ensures exchange of gases via

Answer 59

Stomata ( gas + water exchange)

Question 60

Xylem has __ way flow

Answer 60

Unidirectional (one)

Question 61

Phloem has __ way flow

Answer 61

2 directional