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BOTANY LAB > Simple Permanent Tissue > Flashcards

Simple Permanent Tissue Flashcards

1
Q

a basic unit of an organ

A

Cell

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2
Q

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

A

tissue

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3
Q

Plant tissues are classified into two main groups

A

 Meristematic tissue
 Permanent tissue

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4
Q

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

A

MERISTIMATIC TISSUE

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5
Q

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

A

meristem

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6
Q

are isodiametric in shape without intercellular space

A

Meristematic cells

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7
Q

Cell wall is thin, elastic mainly composed of cellulose

A

Meristematic cells

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8
Q

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

A

Meristematic cells

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9
Q

Cells are immature and shows high rate of metabolism.

A

Meristematic cells

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10
Q

3 Classifications of meristems:

A
  • Origin
  • Position and
  • Function:
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11
Q

3 origins of meristems

A

Primordial meristem or Promeristem
Primary meristem
Secondary meristem

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12
Q

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

A

Primordial meristem or Promeristem

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13
Q

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

A

Primary meristem

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14
Q

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

A

Secondary meristem

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15
Q

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

A

Secondary meristem

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16
Q

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

A

Secondary meristem

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17
Q

3 positions of meristems

A

Apical meristem
Intercalary meristem
Intercalary meristem

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18
Q

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

A

apical meristems

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19
Q

where does apical meristems occupies when in roots

A

tip of the root

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20
Q

where does apical meristems occupies when in shoots

A

most region of stem axis

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21
Q

The meristem which occurs between mature tissues is known as

A

Intercalary meristem

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22
Q

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

A

Intercalary meristem

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23
Q

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

A

Intercalary meristem

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24
Q

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.

A

Lateral meristem

25
Q

is also known as secondary meristem

A

Lateral meristem

26
Q

what are the 2 meristems known as primary meristem

A

apical meristems and intercalary meristem

27
Q

3 functions of meristems

A

Protoderm
Procambium
Ground meristem

28
Q

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

A

protoderm

29
Q

It helps in producing secondary vascular tissue

A

Procambium

30
Q

what are the 4 parts that are formed by ground meristems

A

cortex
endodermis
pericycle medullary rays
pith

31
Q

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

A

ground meristems

32
Q

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

A

permanent tissue

33
Q

there are two types of permanent tissues

A

Simple Permanent
Complex Permanent

34
Q

a permanent tissues having all cells similar in
function

A

Simple Permanent

35
Q

tissues having many different type of cells

A

Complex Permanent

36
Q

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

A

Simple permanent tissue

37
Q

This tissue is either living or dead

A

Simple permanent tissue

38
Q

3 types of simple permanent tissues

A
  • Parenchyma
  • Collenchyma
  • Sclerenchyma
39
Q

It forms the major component within the organs.

A

Parenchyma

40
Q

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

A

Parenchyma

41
Q

Cells are living with prominent nucleus
and cytoplasm with large vacuole

A

parenchyma

42
Q

Cells may be closely packed or having
intercellular space

A

parenchyma

43
Q

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

A

parenchyma

44
Q

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

A

parenchyma

45
Q

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

A

Collenchyma

46
Q

It is either found in homogenous layer or patches

A

Collenchyma

47
Q

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

A

Collenchyma

48
Q

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

A

Collenchyma

49
Q

Cells may be oval, spherical or
polygonal contain chloroplast

A

collenchyma

50
Q

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

A

Collenchyma

51
Q

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

A

Collenchyma

52
Q

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

A

Sclerenchyma

53
Q

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

A

Sclerenchyma

54
Q

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

A

Sclerenchyma

55
Q

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

A

Sclerenchyma

56
Q

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

A

Sclerenchyma

57
Q

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

A

Sclerenchyma

58
Q

Commercial fibres are also
produced from

A

Sclerenchyma

59
Q

are also produced from Sclerenchyma fibres e.g. jute

A

Commercial fibres

BOTANY LAB (3 decks)

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