NEET Daily Practice Papers - Biology - Internal structure of plants

When strong wind blows, the plants bend down and then again become erect. This flexibility in plants is due to

Quiscent centre is the zone of

In the tropics there is no sharp distinction of season and the wood contains vessels of the same size in late wood and early wood. Such wood is called

The diagram suggests that (about removal of tissues at R points in shoot system of fruit tree)

A particular type of plant cell undergoes all of the following changes during its development: Enlargement of plasmodesmata, degeneration of the nucleus, modification (but not elimination) of endoplasmic reticulum. Which one of the following cell types fits this description?

The epiblema or the piliferous layer is the outermost layer of cells of a young root. It is

The stems of hydrophytic plants are soft and weak because of the poor development of

A concentric amphivasal (leptocentric) vascular bundle is one in which

A collateral vascular bundle is that

In a centripetal xylem

In a dicotyledonous stem, the sequence of tissues from the outside to the inside is

The distinct cavities (lacunae) found in a mature vascular bundle of maize stem are formed due to

After preparing a transverse section out of a cut piece of a plant axis, it was seen that it has a C shaped open arch of endarch collateral vascular bundles with secondary growth. This indicates that it is a transverse section of

Annual rings are the bands of

If you cut the old trunk of a tree transversely, you will observe that the outer region of secondary wood is lighter in colour. This region of wood is known as

Which of the following is true for the origin of epidermis and hypodermis

After the secondary growth, the oldest layer of secondary phloem in a dicot stem is located

A leaf showing stomata and cuticle on upper epidermis, raphides in the mesophyll and diaphragm cells, came from a plant that probably is a

Pericycle in roots is responsible for

The bicollateral vascular bundle is the characteristic feature of plants belonging to the family

Which combination of tissues acts together to provide the support to the hypocotyl of a seedling?

Sieve tubes are devoid of nuclei, how then its life is sustained. It is sustained by the nucleus of

Which of the following elements exert a greater resistance to the flow of water by virtue of the pits present on their contagious walls?

Secondary meristems are set apart from primary meristems in that they

Xylem parenchyma occurring in association with vessels is known as

Secondary wall is not formed in

Which one of the following is an effective tissue of growing organs with sufficient elasticity?

A mature sieve tube differs from vessel in

Which tissue performs mechanical function in hydrophytic plants?

In pteridophyta and gymnosperms which cells are present in place of companion cell?

Wood is a common name of

Both vessels and companion cells are absent in

Mechanical tissue consisting of living cells is

Dermatogen is a tissue formed by apical meristem and gives rise to

Intraxyllary phloem may also be called

Aerenchyma is helpful in plants by

Collenchyma tissue is characterised by

The only plant cells without nuclei among the following are

Grass stem elongates by the activity of

Collenchyma differs from sclerenchyma

Sclerenchymatous sheath is present in vascular bundles

In monocot roots which types of vascular bundles are found

Lateral roots arise from

Origin of lateral root of secondary root is

Kranz anatomy is found in

In dicot roots, cells of which region show casparian strips

In the diagram of T.S. of Stele of Dicot Root, the different parts have been indicated by alphabets; choose the answer in which these alphabets correctly match with the parts they indicate

In monocot stem, following is absent

Largest number of chloroplast is found in

Conjoint, collateral and closed vascular bundle is found in

Pith is a central part of the ground

Monocot root differs from dicot root in

Which of the following is correct sequence of layers in typical monocot root (from outer surface to inside)

In dicot stem, the secondary growth takes place by

Cambium causes growth in

Conduction of sap in plants occurs through

“Sap wood” is otherwise called

The function of cork cambium (phellogen) is to produce

Other names of secondary cortex, cork cambium and cork are

In dicot roots, cork cambium is derived from

In which of the following, growth is sub-apical

Meristematic activity occurs at

Which meristem helps in increasing girth

Function of storage is performed by

On the basis of origin, meristematic tissues can be classified under how many groups

Branch of Botany which deals with the study of internal organization of plants is

Collenchymatous tissue is found in

Parenchymatous tissue is characterised by the

Presence of lignin in cell wall is characteristic of

Which of the following are simple tissues

Bordered pits are found in

The activity of intercalary meristems adds to

The abscission layer is covered by a leaf scar which is composed of

Maximum amount of growth in roots occurs due to

Sieve tubes have

Bordered pits are very common in

Which of the following cells is not totipotent

Hydrophytes can float on water due to the presence of large number of

Tyloses thickenings are seen in

Conductive function is performed by

In a stratified cambium, the fusiform initials are

The outermost primary meristem gives rise to

Which of the following tissues is present in the leaves of Pinus to conduct water and food

Epiblema in roots is derived from

Wound healing is due to

A parenchymatous cell which store ergastic substances (waste products) is

Histogen theory states that epidermis is derived from the

Which combination of tissues acts together to provide the support to the hypocotyl of a seedling

Xylem vessels and phloem companion cells are generally absent in

The tip of the root apical meristem is proceeded by root pocket in

The movement of carbohydrates from the leaves of the tree to the root is primarily a function of the

Plerome gives rise to

Formation of the roots from the lenticular hyperhydric tissue is of great advantage to a plant in

Which is present in vascular bundles of gymnosperms

Root cap is absent in

Axillary bud and terminal bud are derived from the activity of

Vessels are found in

Nucleus is absent in

At maturity, which of the following is non-nucleated

Lignin is the main constituent of

Which of the following is absent in phloem of Pinus?

Rind of Citrus fruit possesses

P – protein is found in

In which meristem the cell divisions occur in all planes?

Tissue is

Which of the following cell is totipotent?

The meristem in the root is

The xylem fibres are classified into

The trees have in them a large amount of

Meristems are found in

Rod shaped elongated sclereids found in the seed coats of pulses are known as

The process by which plants becomes woody is

Angiosperms have

Promeristem is found in

Meristematic tissues include

The complex tissues include

Primary vascular tissues are derived from

Epidermis in stem is produced from

Secondary meristems are derived from

Vascular cambium of the root is an example of

Intercalary meristems are present in the

Intercalary meristem is seen in

In root the maximum growth occurs

Chlorenchyma cells are chlorophyll containing

Aerenchyma is found in

Lacunate collenchyma is found in

Primary growth of a tree

The shape of fibre cell is

One of the functions of aerial stem is

Parenchyma cells in between xylem and phloem bundles in roots are called as

Phloem parenchyma is absent in

Callose deposition is found in

The tissue which is living but does not possess nucleus in mature stage is

Which of the following is absent in the primary and secondary structure of stem of Pinus

Xylem position in secondary xylem is

Dead cells of root are supplied by

Quiescent centre is found in

The function of a vessel is

The cell wall of xylem cells is rich in

Who coined the term 'tissue'

Term 'meristem' was coined by

The matured tissues are characterized by

The cells of a meristematic tissue are characterized by

Which of the following is a meristematic tissue

Which of the following wall layers are absent from a meristematic cell

Where would you look for an active cell division in a plant

Which tissue makes up the embryo of a seed

In which of the following situations an intercalary meristem can be present

Intercalary meristem results in

Meristem is defined as a plant tissue where

The length of a plant axis increases by

Which of the following plants grow by a single 'apical cell'

What is the shape of an apical cell in gametophytes of bryophytes and pteridophytes

Histogens are component of or The histogens are differentiated in

How many histogens are present at the apex of root

Histogen theory is more applicable for

Which tissue is derived from plerome

Primary meristem of root is

Root cap regenerates or produced from

Multilayered root cap occurs in

Root cap is not found in

Tunica differs from corpus in

In how many planes tunica divides

Tunica is a rib meristem because it divides in

Anticlinal divisions in an organ cause its growth in

Periclinal division in a cell takes place by

Which tissue is derived from tunica

Korper Kappe theory is applicable for

Korper Kappe theory was proposed by

In Korper Kappe theory, term Korper is meant for body and Kappe is for

Popham identifies a normal angiospermous corpus to be composed of

There is no distinction between tunica and corpus layers in the stem apices of

The primary growth is effected by

What is a promeristem? It is a meristem which produces

From which of the following tissue the protoderm is derived

Name the tissue from which procambium and primary structures of plant originates

'Protoderm' and 'procambium' terms were coined by

Which of the following are primary meristems

Which one of the following is not a primary meristem

What is a secondary meristem? One which originates from

Which of the following are secondary meristems?

Injured parts of a plant are repaired by

A cap like region of slowly dividing or inactive cells in the middle of highly meristematic cells (between meristem and root cap) is

DNA content of quiescent zone is

What is piliferous layer?

Which type of tissue is immediately produced from a meristem?

How do the leaves of a higher plant grow?

Growth of plant is different from the growth of animals in

How many type of cells constitute a simple permanent tissue?

What is a permanent tissue? It is a tissue

Why the cells of a permanent tissue do not divide? Because they are

Which of the following tissues do not have specifically thickened walls?

Which of the following simple tissues form soft parts of a plant body?

What is the shape of a typical parenchyma cell?

Thick cuticle on leaves are typical of plants growing in

Term 'parenchyma' was coined by

How many facets are present in a parenchyma cell?

Parenchyma is

What is the most common type of permanent tissue found in almost all plants?

Chloroplast containing parenchyma is called

Which of the following tissue gives tensile strength against bending and swaying?

Which tissue constitutes pulvinus of a leaf?

A simple mechanical tissue devoid of lignin is

Collenchyma tissue is characterized by

Which of the following supporting tissues have cells with unequally thickened walls?

What are Malpighian cells?

In sclerenchymatous cells, the lignin deposition

Complex tissue does not occur among

Primary plant body is made up of

The chief function of a vessel in a plant body is

Presence of vessel in the wood is

Vessels are absent in

Vessel less angiosperms are

End walls of tracheids and vessels respectively are

A fibre derived from a tracheid is

A fibre which contains simple pits is

Xylem fibre is

Term 'Leptome' is a synonym of

Companion cells are found in the phloem of

Plant cells without the nucleus are

In which of the following phloem parenchyma is absent?

Which of the following tissues have lignified walls?

Bast fibres are frequently found in:

Callus is

In autumn season, the callus pads appear on

Cavity or a gland formed by the separation is

Articulated laticifers or latex vessels are prominent in

Which of the following plants have a watery latex?

Starch grains in latex are

Dermal tissue is derived from

According to Histogen theory, the plerome gives rise to

Most of the fibres in the cortex are of

Which is not the characteristic of xerophytic plants?

In stem which layer forms epidermal tissues?

Aerenchyma is formed in the tissue of

Promeristem gives rise to which meristem

Whose living cells provide tensile and mechanical strength

Lignin is the important constituent in the cell wall of

Active division takes place in the cells of

A component of xylem is