Anatomy of Flowering Plants - Quiz 2

Fibres and sclereids are the types of –

• Parenchyma

• Collenchyma

• Sclerenchyma

• Xylem

The dead, elongated cells having lignified thick cell wall occurring in groups, with tapering ends and serving a mechanical function are called –

• Fibres

• Vessels

• Tracheids

• Collenchyma

I. Occur as layers or patches

II. Cell wall – Unevenly thickened due to pectocellulosic deposition

III. Cells – Spherical, oval or polygonal

IV. Often has chloroplast

V. Living mechanical tissue

VI. Occur in hypodermis of young dicot stem and petiole

The characters are shown by which of the following tissues –

• Parenchyma

• Collenchyma

• Sclerenchyma

• Vascular tissue

Dead cells with narrow lumen, lignified cell wall with a few or numerous pits and serving a mechanical function only are called –

• Collenchyma

• Xylem

• Aerenchyma

• Sclerenchyma

Which one is secondary lateral meristem?

• Intercalary

• Cork cambium

• Interfascicular cambium

• Both b and c

I. Forms major component within organs

II. Cell wall - thin, cellulosic

III. Shape of cells - generally isodiametric

IV. Intercellular space – Present / absent

V. Photosynthetic, storage or secretory in function

The above characters are attributed to –

• Collenchyma

• Parenchyma

• Sclerenchyma

• Vascular tissue

Meristem helps in –

• Absorption of water

• Growth of plants

• Absorption of minerals

• Transpiration

Meristematic activity occurs at –

• Vascular tissue

• Stem apex

• Leaf

• Root hair

During formation of leaves and elongation of stem, some cells ‘left behind’ from the shoot apical meristem, constitute _________.

• Lateral meristem

• Axillary bud

• Cork cambium

• Fascicular cambium

Cells of permanent tissues are specialised –

• Functionally

• Only structurally

• Both structurally and functionally

• For mitosis