Phloem located only on the outer side of xylem is a characteristic feature of ________ vascular bundles.

  • Conjoint

  • Radial

  • Diagonal

  • Spherical

In TS of Dicotyledonous root the innermost layer of the cortex is called _________.

  • Pericycle

  • Metaxylem

  • Endodermis

  • Pith

The walls of the endodermal cells have deposition of water impermeable, waxy material suberin in the form of __________.

  • Protoxylem

  • Metaxylem

  • Casparian strip

  • Cork cambium

In TS of dicotyledonous root next to endodermis lies a few layers of thick walled parenchymatous cells referred to as _________.

  • Pericycle

  • Metacycle

  • Procycle

  • Pith

In TS of Dicotyledonous root the parenchymatous cells which lies between the xylem and phloem are called _________.

  • Connective tissue

  • Conjuctive tissue

  • Cortex

  • Cambium

In TS of dicot root all tissue on the inner side of the endodermis such as Pericycle, vascular bundles and pith constitute the ________.

  • Medulla

  • Metaxylem

  • Pith

  • Stele

Monocotyledonous root do not undergo any ________.

  • Cell division

  • Secondary growth

  • Differentiation

  • Tertiary growth

In TS of dicotyledonous stem the cells arranged in multiple layers between epidermis and Pericycle constitute the ___________.

  • Cortex

  • Pith

  • Pericycle apparatus

  • Medullary rays

Starch sheath layer in plant stem is also known as

  • Epidermis

  • Metadermis

  • Endodermis

  • Pith layer

In TS of dicot stem ________ is present on the inner side of the endodermis and above the phloem in the form of semilunar patches of sclerenchyma.

  • Pericycle

  • Casparian strip

  • Pith

  • Protoxylem

___________ arrangement of vascular bundle is a characteristic of dicot stem.

  • Ring

  • Radial

  • Centric

  • Peripheral

A large number of rounded, parenchymatous cells with large intracellular spaces which occupy the central position of stem constitute the __________.

  • Lumen

  • Pith

  • Cortex

  • Vascular bundle

Phloem parenchyma is absent in

  • Dicot stem

  • Monocot stem

  • Vascular bundle

  • Both A and B

In dicot leaves the ________ epidermis generally bears more stomata than the _________ epidermis.

  • Abaxial, adaxial

  • Adaxial, abaxial

  • Axial, coaxial

  • Coaxial, axial

The tissue between the upper and lower epidermis is called

  • Chlorophyll

  • Mesophyll

  • Cambium

  • Endodermis

Mesophyll in dicot leaves has two type of cell namely_________.

  • Palisade parenchyma and spongy parenchyma

  • Pith and Protoxylem

  • Xylem and phloem

  • Epidermis and endodermis

Vascular bundles are surrounded by a layer of thick walled ________.

  • Bundle sheath cells

  • Cuticle

  • Casparian strip

  • Waxy cell

In monocot leaf

  • Stomata is present on both surface of epidermis

  • Mesophyll is not differentiated into palisade and spongy parenchyma

  • There is no parenchyma

  • Both A and B

In grasses certain adaxial epidermal cells along the vein modify themselves into large, empty, colourless cells called ________.

  • Bark

  • Bulliform cells

  • Bundle sheath cells

  • Spongy mesophyll cells

Bulliform cells help in

  • Heat resistance

  • Minimizing water loss

  • Maintaining ion balance

  • Mineral acquisition

The similar size of vascular bundle in monocot leaf is due to

  • Reticulate venation

  • Parallel venation

  • Branched venation

  • Radial venation

The tissue involved in secondary growth are

  • Vascular cambium

  • Cork cambium

  • Pith

  • Both A and B

In dicot stem the cells of cambium present between primary xylem and primary phloem is the ___________.

  • Intrafascicular cambium

  • Interfascicular cambium

  • Metafascicular cambium

  • Radial cambium

When cambial ring becomes active, the cells cut off toward pith mature into

  • Primary xylem

  • Secondary xylem

  • Primary phloem

  • Secondary phloem

When cambial rings become active and the cells cut off towards periphery mature into

  • Secondary phloem

  • Primary phloem

  • Primary xylem

  • Secondary xylem

The cambium is generally more active on the _________ side than the _________ side.

  • Inner, outer

  • Outer, inner

  • Radial, inner

  • Radial, outer

The primary and secondary phloem gets gradually crushed due to the continued formation and accumulation of _________.

  • Secondary xylem

  • Resin

  • Wax

  • Bark

In dicot stem, at some places the cambium forms a narrow band of parenchyma which passes through the secondary xylem and secondary phloem in radial direction these are called _________.

  • Secondary medullary rays

  • Rays

  • Primary medullary rays

  • Tertiary medullary rays

The wood formed during spring is called

  • Early wood

  • Late wood

  • Autumn wood

  • Summer wood

The wood formed during winter is called

  • Early wood

  • Spring wood

  • Autumn wood

  • Intermediate wood

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