Structural Organisation in Plants

The annular and spirally thickened conducting elements generally develop in the protoxylem when the root or stem is:

Anatomically fairly old dicotyledonous root is distinguished from the dicotyledonous stem by

For a critical study of secondary growth in plants. Which one of the following pairs is suitable?

Reduction in vascular tissue, mechanical tissue and cuticle is characteristic of:

The length of different internodes in a culm of sugarcane is variable because of

What would be the number of chromosomes of the aleurone cells of a plant with 42 chromosomes in its root tip cells ?

Which of the following is a flowering plant with nodules containing filamentous nitrogen-fixing micro-organism

In land plants, the guard cells differ from other epidermal cells in having :

How many plants in the list given below have composite fruits that develop from an inflorescence Walnut, poppy, radish, fig, pineapple, apple, tomato, mulberry

Gymnosperms are also called soft wood spermatophytes because they lack:

Meristematic tissue responsible for increase in girth of tree trunk is

The coconut water and the edible part of coconut are equivalent to :

The cork cambium, cork and secondary cortex are collectively called:

The technical term used for the androecium in a flower of China rose (Hibiscus rosa sinensis) is:

The chief water conducting elements of xylem in gymnosperms are:

Whorled, simple leaves with reticulate venation are present in

In unilocular ovary with a single ovule the placentation is :

Which one of the following is wrongly matched about root veg?

Water containing cavities in vascular bundles are found in :

Which one of the following is resistant to enzyme action?

The gynoecium consists of many free pistils in flowers of

Vexillary aestivation is characteristic of the family

Which one of the following is not a lateral meristem?

Interfascicular cambium develops from the cells of :

Vascular tissues in flowering plants develop from:

As compared to a dicot root, a monocot root has

Companion cells are closely associated with :

Palisade parenchyma is absent in leaves of:

Replum is present in the ovary of flower of

Keel is characteristic of the flowers of:

Ovary is half-inferior in the flowers of:

The common bottle cork is a product of :

The ovary is half inferior in flowers of

An example of axile placentation is:

Cymose inflorescence is present in :

In barley stem vascular bundles are:

Age of a tree can be estimated by :

Placentation in tomato and lemon is

Sweet potato is homologous to

Closed vascular bundles lack

Flowers are zygomorphic in :

Inflorescence is racemose in

Lenticels are involved in :

Phyllode is present in :

Which one of the following organisms is correctly matched with its three characteristics?

Pentamerous, actinomorphic flowers, bicarpellate ovary with oblique septa and fruit a capsule of berry, are characteristic features of

Among flowers of Calotropis, tulip, Sesbania, Asparagus, Colchicine, Sweet pea, Petunia, Indigofera, Mustard, Soyabean, Tobacco and groundnut how many plants have corolla with valvate aestivation?

Among bitter gourd, mustard, brinjal, pumpkin, china rose, lupin, cucumber, sunhemp, gram, guava, bean, chilli, plum, petunia, tomato, rose, withania, potato, onion, aloe and tulip how many plants have hypogynous flower?

How many plants among China rose, Ocimum, sunflower, mustard, Alstonia, guava, Calotropis and Nerium (Oleander) have opposite phyllotaxy?

Which of the following statements is not true for stomatal apparatus?

How many plants in the list given below have marginal placentation? Mustard, Gram, Tulip, Asparagus, Arhar, Sun hemp, Chilli, Colchicine, Onion, Moong, Pea, Tobacco, Lupin

Which one of the following statements is correct about plants?

Some vascular bundles are described as open because these

In Kranz anatomy, the bundle sheath cells have

Passage cells are thin walled cells found in

In a cymose inflorescence the main axis

Heartwood differs from sapwood in:

Function of companion cells is

In china rose the flowers are

Ground tissue includes

One of the following statements is false for heartwood

Syconus is a ccomposite or multiple fruit develops from

The sugarcane plant has

A special type of seed germination is found in mangrove vegetation such as Rhizophora, Avicennia, etc is called

A common structural feature of vessel elements and sieve tube element is

After removal of covering in peath seed consists of

Claodode is a characteristic morphological feature of

Tracheids differ from other tracheary element in

In a woody dicotyledonous tree, which of the following parts will mainly consist of primary tissues

Potato is the major staple,underground plant product. It is the modification of

Quiescent centre is found in root. The concept of quiiescent centre was proposed by

In which of the following plants amphivasal leptocentric vascular bundles are found

Venation is aterm used to describe the pattern of arrangement of

In which one of the following would you expect to find the glyoxysomes

What do you mean by closed vascular bundle

Lateral meristem is present in

A drupe develope in

Cabbage is the

Lenticels help in gaseouss exchange and lenticular transpiration. lrnticlrs are the characteristics of

A fruit developed from a condensed inflorescence is

Bicollateral vascular bundles are found in family

Embryo of sunflower has

Tegmen develops from

In Eichhornia parenchyma developes air space,such parenchyma with air cavities is known as

In Alocasia and Canna,vertical rhizome is found,It is also called

Phylloclade differs from cladode because of having

In angiosperms, pericycle gives rise to

Vessel less angiosperms are

The characteristic fruit of family Leguminosae is

Monocot stem lacks

In which of the following plants, stem performs the function of storage and perennation

Roots develped from parts of the plant other than radicle are called

The eyes of the potato tuber are

Castor is a dicot having albuminus seeds. In these seeds there is a specific outgrowth called

The characteristic fruit of Brassica,family cruciferae is

The correct floral formula of chilli is

Longest seed viability is found in

Stem tendril is not present in

Tripinnate leaves occurs in

Generally epiderms is single layered but in certain leaves, multilayered upper epiderms is present such as

Which of the following non angiospermic plants have vessels

In monocot embryo,there is a single cotyledon called

A small aquatic herb in which a portion of leaf forms a tiny sac or bladder which traps water insects is

Histogens capping root apical,meristem is

Anomalous secondary growth is found in

Edible part of mango is

When the margins of sepals or petals overlaps one another without any particular direction,the condition is termed as

The scutellum observed in a grain of wheat or maize is comparable to which part of the seed in other monocotyledons

The spines present in water cheestnut are the modification of persistent

Which of the following represents the edible part of the fruit of litchi

Non endospermic or exalbuminous seeds are present in

Which of the following is not a phylloclade

Geocarpic fruits are propduced by

The leaf less stem of onion,which is produced to bear flower is called

Which of the following plants is used to extract the blue dye

Many pulses of daily use belong to one of the families below

Which of the following kinds of animals are triploblatic

The below inflorescence is an

The structure which contain vascular bundle and is modification of stem is

Rhizome,which grows vertically upwards is

A man without any knowledge of Botany thinks that is a flower but actually it is an inflorescence

What typeof placentation is seen in sweet pea

Cork cambium results in the formation of cork,which becomes impermeble to water due to the accumlation of

The placenta is attached to the developing seeds near the

Aleurone layer of maize grain is specially rich in

An example of edible underground stem is

A characteristic fruit, found in members of family Poaceae in which pericarp fused with seed coat is

Increase in circumferance of stem is due to the activity of

Keel is the characteristic feature of flower of

Seed coat is not thin membranous in

Endosperm a product of double fertilization in angiosperms is absent in

A drupe develope in

Perigynous flowers are found in

Edible part of cauliflower is

Amoung bitter gourd.mustard,brinjal,pumpkin,china rose,lupin,cucumber,sunnhemp.gram,guava,bean,chilli,plum,petunia,tomato,rose,withania,potato,onion,aloe and tulip,how plants have hypogynous flower

Which of the following is not correct

In a longitudinal section of a root, starting from the tip upward the four zones occur in the following order

Which one of the following statement pertaining to plant structure is correct

The mature seeds of plants such as gram and peas posses no endosperm because

The incorrect statement is

The presence of epiphytic roots is the characteristic feature of

The correct statement is

A major characteristic of the monocot root is the presence of

Which of the following is not correct

Potato and sweet potato

Why a vivipary an undesirable character for annual crop plants

Which one of the following statements is correct

Which of the following is not correct

Which one of the following statements is correct

Pineapple fruit develops from

Root cap has no role in absorption of water, because it has

An aggregate fruit is one which develops from

In the sleve elements, which one of the following is the most likely function of P proteins

In dicot stem, vascular bundles are cojoint, collateral and open whereas in monocots vascular bundles are

In Citrus fruit a special type of berry called hesperidium is present, the edible part of citrus fruit is

Sclerenchyma is thick walled tissue, which has depositions of

Root pockets are present in

The modification of ptiole into leaf like structure is called

Which of the following is a group of rhizomes

Companion cells are absent in pholem of

In epigynous flower

The fruits developed from ovary and other floral parts except ovary are called

A plant which is represented by only root. It means root performs the function of assimilation and reproduction and the plant is

In a plant organ, which is converted by periderm and in which the stomata are absent, some gaseous exchange still takes in through

When a large number of sessile flowers grows from a suppressed rachis giving rise to a globose structure the inflorescence is called

In an inflorescene where flowers are bornee laterally in an acropetal succession, the position of the youngest floral bud shall be

Reticulate venation in leaves is the characteristic feature of dicot plants. which of the following monocot plants possesses exceptionally reticulate venation

You are given a fairy old piece of dicot stem and a dicot root. which of the following anatomical structures will you use to distinguish between the two