Simple Permanent Tissue

Question 1

a basic unit of an organ

Answer 1

Cell

Question 2

A group of cell having essentially a common function and origin is called as

Answer 2

tissue

Question 3

Plant tissues are classified into two main groups

Answer 3

 Meristematic tissue
 Permanent tissue

Question 4

It is a group of young living cells with ability to divide in the regions where they are present.

Answer 4

MERISTIMATIC TISSUE

Question 5

Growth in plants is restricted to specialized region of active cell division called

Answer 5

meristem

Question 6

are isodiametric in shape without intercellular space

Answer 6

Meristematic cells

Question 7

Cell wall is thin, elastic mainly composed of cellulose

Answer 7

Meristematic cells

Question 8

Protoplasm is dense with distinct nucleus at center and with small vacuoles if present.

Answer 8

Meristematic cells

Question 9

Cells are immature and shows high rate of metabolism.

Answer 9

Meristematic cells

Question 10

3 Classifications of meristems:

Answer 10

• Origin
• Position and
• Function:

Question 11

3 origins of meristems

Answer 11

Primordial meristem or Promeristem
Primary meristem
Secondary meristem

Question 12

Usually occupying very minute area at the tip of root and shoot and also called as embryonic meristem

Answer 12

Primordial meristem or Promeristem

Question 13

Originates from primordial meristem and occur in
plant body from beginning at the root and shoot apices and contribute in the formation of primary plant body

Answer 13

Primary meristem

Question 14

are tissues develop from living permanent tissues during later stages therefore called as secondary meristems

Answer 14

Secondary meristem

Question 15

They are responsible for producing secondary tissues and
occur in mature region of root and shoots of many plants

Answer 15

Secondary meristem

Question 16

They are always lateral in position e.g. fasicular cambium, inter fasicular cambium, cork cambium

Answer 16

Secondary meristem

Question 17

3 positions of meristems

Answer 17

Apical meristem
Intercalary meristem
Intercalary meristem

Question 18

The meristem that occurs at tips of roots and shoots and
produce primary tissues

Answer 18

apical meristems

Question 19

where does apical meristems occupies when in roots

Answer 19

tip of the root

Question 20

where does apical meristems occupies when in shoots

Answer 20

most region of stem axis

Question 21

The meristem which occurs between mature tissues is known as

Answer 21

Intercalary meristem

Question 22

It is present in the top and base area of
the node

Answer 22

Intercalary meristem

Question 23

They are short lived and their activity is mainly seen in monocots

Answer 23

Intercalary meristem

Question 24

It is present along the side of central axis of organs and
takes part in increasing girth of stem and root e.g. intrafacicular
cambium.

Answer 24

Lateral meristem

Question 25

is also known as secondary meristem

Answer 25

Lateral meristem

Question 26

what are the 2 meristems known as primary meristem

Answer 26

apical meristems and intercalary meristem

Question 27

3 functions of meristems

Answer 27

Protoderm Procambium Ground meristem

Question 28

In young growing regions of plant, the protective covering like epidermis around various organs is called as

Answer 28

protoderm

Question 29

It helps in producing secondary vascular tissue

Answer 29

Procambium

Question 30

what are the 4 parts that are formed by ground meristems

Answer 30

cortex endodermis pericycle medullary rays pith

Question 31

Structures like cortex, endodermis, pericycle medullary rays and pith are formed from

Answer 31

ground meristems

Question 32

these tissues do not generally divide further and acquired permanent shape size and function.

Answer 32

permanent tissue

Question 33

there are two types of permanent tissues

Answer 33

Simple Permanent Complex Permanent

Question 34

a permanent tissues having all cells similar in function

Answer 34

Simple Permanent

Question 35

tissues having many different type of cells

Answer 35

Complex Permanent

Question 36

It is made up of only one type of cell carrying similar function

Answer 36

Simple permanent tissue

Question 37

This tissue is either living or dead

Answer 37

Simple permanent tissue

Question 38

3 types of simple permanent tissues

Answer 38

* Parenchyma * Collenchyma * Sclerenchyma

Question 39

It forms the major component within the organs.

Answer 39

Parenchyma

Question 40

cells are thin walled made up of cellulose, isodiametric, round, oval to elongate in shape.

Answer 40

Parenchyma

Question 41

Cells are living with prominent nucleus and cytoplasm with large vacuole

Answer 41

parenchyma

Question 42

Cells may be closely packed or having intercellular space

Answer 42

parenchyma

Question 43

These cells are distributed in all parts of plant body viz. Epidermis, cortex, pericycle, pith, xylem and phloem.

Answer 43

parenchyma

Question 44

these tissues performs various functions like storage of food and water, helps in gaseous exchange, perform photosynthesis

Answer 44

parenchyma

Question 45

It is made up of living cell and occurs in layer below the epidermis in most of the dicotyledonous plants

Answer 45

Collenchyma

Question 46

It is either found in homogenous layer or patches

Answer 46

Collenchyma

Question 47

its Cell wall is cellulosic but shows uneven deposition of cellulose, hemicelluloses and pectin especially at corners.

Answer 47

Collenchyma

Question 48

Cells similar to parenchyma containing cytoplasm, nucleus and vacuoles but small in size and without intercellular space.

Answer 48

Collenchyma

Question 49

Cells may be oval, spherical or polygonal contain chloroplast

Answer 49

collenchyma

Question 50

It provides mechanical support to young growing parts of plants such as young stem and petiole of leaf

Answer 50

Collenchyma

Question 51

allows bending and pulling action in plant parts, prevent tearing of leaf also helps in growth of organs and elongation

Answer 51

Collenchyma

Question 52

It consists of long, narrow cells with thick walled dead cells

Answer 52

Sclerenchyma

Question 53

Cells are living at the time of production but at maturity they become dead.

Answer 53

Sclerenchyma

Question 54

Fibres are thick walled, thread like, elongated and narrow with tapering and interlocking end

Answer 54

Sclerenchyma

Question 55

they are generally occurs in groups, in various parts of the plants and provide mechanical strength to the plant

Answer 55

Sclerenchyma

Question 56

Scleroids are usually spherical, oval, highly thickened dead cells with narrow cavities or lumen

Answer 56

Sclerenchyma

Question 57

provides mechanical support to organs, permits bending and pulling, also give rigidity to epicarps and seeds

Answer 57

Sclerenchyma

Question 58

Commercial fibres are also produced from

Answer 58

Sclerenchyma

Question 59

are also produced from Sclerenchyma fibres e.g. jute

Answer 59

Commercial fibres