Anatomy Of Flowering Plants

Front 1

Study of internal structure of plant

Back 1

Anatomy

Front 2

Internal structures also show ___________ to diverse environments.

Back 2

Adaptations

Front 3

Plants have __1__as the basic unit, cells are organised into ___2___ and in turn the tissuesare organised into ____3____.

Back 3

1.Cells

2.Tissues.

3.Organs

Front 4

A _______ is a group of cells having a common origin and usually performinga common function.

Back 4

Tissues

Front 5

Growth in plants is largely restricted to specialised regions of active cell division called _________.

Back 5

Meristem

Hint 5

(Gk. meristos: divided)

Front 6

Tissuesare classified into two main groups, namely,____1____ and ____2____tissues based on whether the cells being formed are capable of ___3___or not.

Back 6

1.Meristamatic

2.Permanent

3.Dividing

Front 7

Tissuesare classified into two main groups, namely,____1____ and ____2____tissues based on whether the cells being formed are capable of ___3___or not.

Back 7

1.Meristamatic

2.Permanent

3.Dividing

Front 8

During theformation of leaves and elongation of stem, some cells ‘left behind’ fromshoot apical meristem, constitute the ___________.

Back 8

Axillary Bud

Hint 8

These buds are present in the axil of the leaves and capable of forming a branch or flower.

Front 9

Themeristem which occurs between mature tissues is known as ___________meristem.

Back 9

Intercalary

Front 10

Intercalary meristems occur in __1__ and regenerate parts removed by the____2_____

Back 10

1.grasses

2. Grazing herbivores

Front 11

Both apical meristems and intercalary meristems are_________ meristems because they appear early in life of a plant andcontribute to the formation of the primary plant body.

Back 11

Primary

Front 12

The meristem that occurs in the mature regions of roots and shoots ofmany plants, particularly those that produce woody axis and appearlater than primary meristem is called the _________ or _________ meristem

Back 12

Secondary or lateral

Front 13

Give other two other names of secondary meristems

Back 13

1. Lateral meristems

2.Cylindrical meristems

Front 14

___1___ ,___2____ and ___3____ are examples of lateralmeristems

Back 14

1.Fascicular vascular cambium

2.interfascicular cambium

3.cork-cambium

Front 15

Following divisions of cells in both primary and as well as secondary meristems, the newly formed cells become ___1___ and ____2____specialised and lose the ability to divide

Such cells are called Permanent/ mature cells.

Back 15

1.Structurally

2.Functionally

Front 16

During theformation of the primary plant body, specific regions of the apical meristemproduce __1__, __2__and __3__.

Back 16

1.Dermal tissues

2.Ground tissues

3.Vascular tissues

Front 17

Permanent tissues having all cellssimilar in structure and function are called ______.

Back 17

simpletissues

Front 18

_________ forms the majorcomponent within organs.

Back 18

Parenchyma

Front 19

Permanent tissues having many differenttypes of cells are called ____.

Back 19

complex tissues

Front 20

Shapes of parenchyma

Back 20

1.Isodiametric

2.Spherical

3.Oval

4.Round

5.Polygonal

6.Elongated

Hint 20

SPORE

Front 21

Characteristics of parenchyma

Back 21

1.Their walls are thin and madeup of cellulose.

2.They may either be closely packedor have small intercellular spaces.

3.Theparenchyma performs various functions likephotosynthesis, storage, secretion.

Front 22

The ___1___ occurs in layers below theepidermis in most of the dicotyledonous plants.

Back 22

collenchyma

Front 23

Characteristics of collenchyma

Back 23

1.It isfound either as a homogeneous layer or in patches.

2.It consists of cells which are much thickened at thecorners due to a deposition of cellulose,hemicellulose and pectin.

3.These cells assimilate foodwhen they contain chloroplasts. Intercellular spacesare absent.

4.They provide mechanical support to thegrowing parts of the plant such as young stem andpetiole of a leaf.

Front 24

Shapes of collenchyma

Back 24

1.Spherical

2.Oval

3.Polygonal

Hint 24

SOP

Front 25

_________ consists of long, narrow cellswith thick and lignified cell walls having a few ornumerous pits.

Back 25

Sclerenchyma

Front 26

Sclerenchyma are usually dead and without ______________.

Back 26

protoplasts

Front 27

On the basis of variation in form,structure, origin and development, sclerenchymamay be either ______ or ______.

Back 27

fibres

sclereids

Front 28

Sclerenchyma provides _______ to organs.

Back 28

mechanical support

Front 29

The _____ is the outermostlayer of the primary plant body .

Back 29

epidermis

Front 30

Epidermis is usually _________

Back 30

single layered

Front 31

Epidermal cells are _________ with a small amount ofcytoplasm lining the cell wall and a large vacuole

Back 31

parenchymatous

Front 32

The outside of theepidermis is often covered with a waxy thick layer called the ________.

Back 32

cuticle

Front 33

The cuticle is absent in _________

Back 33

roots

Front 34

Stomata regulate the process of ____ and ______.

Back 34

transpiration &

gaseous exchange.

Front 35

Each stoma is composed of two bean-shaped cells known as ____ which enclose stomatal pore .

Back 35

guard cells

Front 36

In grasses,the guard cells are ________

Back 36

dumb-bell shaped

Front 37

The outer walls of guard cells are __1__ and the inner walls are __2__.

Back 37

1.thin

2.highly thickened

Front 38

The stomatal aperture, guardcells and the surrounding subsidiary cells are together called _____

Back 38

stomatal apparatus