Question answer of Morphology of Flowering Plants

Androecium having dissimilar stamens is
(a) Unequal
(b) Heterostemonous
(c) Diplostemonous
(d) Obdiplostemonous

Ans. (b)

The fruit of grasses is usually a
(a) Capsule
(b) Achene
(c) Nut
(d) Caryopsis

Answer. (d)

The whorl and position of the short stamens in Cruciferae is
(a) Outer, lateral
(b) Outer, antero-posterior
(c) Inner, lateral
(d) Inner, antero-posterior

Answer. (a)

If the peduncle shows indefinite growth producing flowers laterally in an acropetal order the inflorescence is :
(a) racemose
(b) cymose
(c) mixed
(d) specialised

Ans. (a)

Ovules are numerous in
(a) Cruciferae
(b) Solanaceae
(c) Leguminose
(d) Asteraceae

Answer. (b)

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Parachutes like pappus are found in
(a) Liliaceae/Cotton
(b) Gramineae/Paddy
(c) Compositae/Marigold
(d) Solanaceae/Calotropis

Ans. (c)

Roots are modified into thorny branches in
(a) Vanilla
(b) Asparagus
(c) Dioscorea
(d) Acanthorrhiza

Answer. (d)

The books in hoxantha (Bignonia) represent the modification of
(a) Upper leaves
(b) Lower leaves
(c) Upper leaflets
(d) Lower leaflets

Answer. (c)

Sometimes, sepals are modified into hairy structures which are useful in dispersal of seeds. These are called
(a) Tepals
(b) Epik
(c) Pappus
(d) Trichome

Ans. (c)

In which of the following a single naked female flower is surrounded by five scorpioid cyme of male flowers?
(a) Hypanthodium
(b) Cyathium
(c) Capitulum
(d) Verticillaster

Ans. (c)

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Cantharophilous flowers are pollinated by
(a) Butterflies
(b) Wasps
(c) Moths
(d) Beetles

Answer. (d)

The flower of Brassica is
(a) Tetracyclic
(b) Pentacyclic
(c) Tricyclic
(d) Polycyclic

Answer. (b)

In which of the following stems is most reduced?
(a) Rhizome
(b) Corm
(c) Phylloclade
(d) Bulb

Answer. (d)

Which of the following is regarded as equivalent to perianth?
(a) Glume
(b) Lodicule
(c) Superior palea
(d) Inferior palea

Ans. (b)

The fiber yielding part of Agave sislana is
(a) Scape
(b) Roots
(c) Leaves

Answer. (c)

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In Hibiscus rosa-sinensis there is an additional floral whorl known as
(a) Calyx
(b) Involucre
(c) Epicalyx
(d) Obdiplostemonous layer

Ans. (c)

If in an inflorescence two lateral branches develop on either side of the terminal flower which again branch is known as :
(a) monochasial cyme
(b) Scorpioid cyme
(c) helicoid cyme
(d) dichasial cyme

Ans. (d)

Flower is complete when it has
(a) Calyx, corolla, androecium and gynoecium
(b) Calyx and corolla
(c) Androecium and gynoecium
(d) Corolla, androecium and gynoecium

Ans. (a)

Which of the plants is not related to Leguminosae?
(a) Green gram
(b) Saraca
(c) Paddy
(d) Tamarind

Answer. (c)

A distinct monocot character shown by the flowers of Liliaceae is
(a) Hypogynous
(b) Actinomorphic
(c) Trimerous
(d) Bisexual

Answer. (c)

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The example of a trimerous, unisexual flower is
(a) Cocos nucifera
(b) Hibiscus
(c) Tamarind
(d) Pea

Ans. (a)

Three sub-families of Family Leguminosae are distinguished by the characters of
(a) Sepals
(b) Carpels
(c) Fruit
(d) Corolla and androecium

Answer. (d)

The main axis forms a cup-shaped receptacle with a narrow terminal opening. Flowers are arranged in cymose within the cup. The description refers to :
(a) syconus
(b) cyathium
(c) hypanthodium
(d) verticillaster

Ans. (c)

The ratio of male and female flowers in the hypanthodium inflorescence is
(a) One to many
(b) Many to one
(c) Many to three
(d) One to three

Answer. (c)

Prop roots are
(a) Tap roots
(b) Fasciculated roots
(c) Branched roots
(d) Adventitious roots

Answer. (d)

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Which is present in monocot flowers?
(a) Sepals
(b) Petals
(c) Tepals

Ans. (c)

Stamens attached to petals are
(a) Antipetalous
(b) Epipetalous
(c) Epiphyllous
(d) Episepalous

Ans. (b)

The gynoecium of grasses is
(a) Tricarpellary, trilocular
(b) Tricarpellary, unilocular
(c) Bicarpellary, unilocular
(d) Monocarpellary, unilocular

Answer. (d)

Cyathium and hypanthodium resemble each other in possessing :
(a) involucre
(b) dioecious nature
(c) receptacle
(d) unisexual flower

Ans. (d)

The corolla with four diagonally arranged petals is
(a) Vexillary
(b) Cruciform
(c) Gamopetalous
(d) Caryophyllaceous

Ans. (b)

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The floweral formula represents
(a) Position of flower
(b) Symmetry of a flower
(c) Functions of a flower
(d) Diagrammatic notation of floral characters

Ans. (d)

Spadix inflorescence occure in :
(a) Morus
(b) Banana
(c) Delonix
(d) Coriandrum

Ans. (b)

Arrangement of sepals and petals in the bud condition is called :
(a) Ptyxis
(b) Placentation
(c) Aestivation
(d) Phyllolaxy

Ans. (c)

Pappus is a modification of
(a) Bracts
(b) Bracteoles
(c) Corolla
(d) Calyx

Ans. (d)

Inflorescence with flattened axis, sessile flowers and a whorl of involucre bract is :
(a) umbel
(b) head
(c) crymb
(d) capitale

Ans. (b)

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Part of the pistil which receives pollen is
(a) Ovary
(b) Style
(c) Stigma
(d) Ovule

Ans. (c)

Compound apocarpous gynoecium is found in
(a) Lily
(b) Hollyhock
(c) Lotus/Ranunculus
(d) Pumpkin

Ans. (c)

The number of the female flowers in cyathium inflorescence is :
(a) 1
(b) 2
(c) 3
(d) many

Ans. (a)

The family originally named after the characteristic type of inflorescence formed in them is
(a) Malvaceae
(b) Fabaceae
(c) Euphorbiaceae
(d) Asteraceae

Answer. (d)

Axis development between androecium and gynoecium is
(a) Anthophore
(b) Androphore
(c) Gynophore
(d) Gynandrophore

Ans. (c)

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Part of Gynoecium which receives the pollen is called
(a) Stigma
(b) Style
(c) Ovary
(d) Ovule

Ans. (a)

In Ficus the inflorescence is :
(a) coeanthium
(b) catkin
(c) spadix
(d) hypanthodium

Ans. (d)

In Maize, the flowers are
(a) Absent
(b) Unisexual but on different plants
(c) Bisexual
(d) Unisexual but on the same plant

Ans. (d)

A flower is actinomorphic when it is divisible into two:
(a) Halves having equal number of sepals and petals
(b) Similar halves by a vertical division in any plane
(c) Similar halves by a vertical division in one plane only
(d) Halves having similar parts by a transverse division

Ans. (b)

If a racemose inflorescence is branched it is called :
(a) umbel
(b) panicle
(c) head
(d) cymose

Ans. (b)

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Butterfly-shaped flower with one stranded, two wing-like and two keeled petals belong to
(a) Compositae
(b) Rubiaceae
(c) Malvaceae
(d) Papilionaceae

Ans. (d)

The term Anthesis is used for
(a) Cluster of anthers
(b) Opening of flowers
(c) Dehiscence of anthers
(d) Falling of flowers

Ans. (b)

An inflorescence which contains gall flowers is :
(a) verticillaster
(b) cyanthium
(c) hypanthodium
(d) capitulum

Ans. (c)

When both sexes are absent from a flower or are non-functional, the flower is said to be
(a) Neutral
(b) Incomplete
(c) Unisexual
(d) Intersexual

Ans. (a)

A flower without the non-essential whorls is called :
(a) achlamydeous
(b) hermaphorodite
(c) monoecious
(d) dioecious

Ans. (a)

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A longitudinal or vertical section of the flower indicates
(a) Type of pollination
(b) Arrangement of members in a whorl
(c) Number of floral parts in whorls
(d) Manner of insertion of parts in different whorls

Ans. (d)

A beautiful whorl which encloses whole of the inflorescence is :
(a) bract
(b) spadix
(c) involucre
(d) spathe

Ans. (d)

The largest flower is that of
(a) Sunflower
(b) Rafflesia
(c) Nelumbo
(d) Drosera

Ans. (b)

What is correct about flowers? It is modified
(a) Root
(b) Shoot
(c) Leaf
(d) Inflorescence

Ans. (b)

One of these is a wrong match :
(a) cyme-Hibiscus
(b) verticillaster-Leucas
(c) Corymb-Caecalpinia
(d) spike-Crotolaria

Ans. (d)

One of the following is not a flower :
(a) shoe flower
(b) passion flower
(c) sunflower
(d) may flower

Ans. (c)

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Arrangement of floral members which are partially spiral and partially in a whorl is
(a) Cyclic
(b) Acyclic
(c) Hemicyclic
(d) Pentacyclic

Ans. (c)

Unicostate parallel venation is the characteristic of leaves of
(a) Canna
(b) Bamboo
(c) Palmyra palm
(d) Rice

Answer. (a)

In Parkinsonia aculeata which part of leaf is modified into phyllode?
(a) Petiole
(b) Primary rachis
(c) Secondary rachis
(d) Leaflets

Answer. (c)

Stems with solid nodes and hollow internodes are known as
(a) Culms
(b) Scape
(c) Ephemerals
(d) Lianas

Answer. (a)

Zygomorphic flower is when :
(a) any  vertical section passing through its centre divides the flower into two equal parts
(b) there is only one vertical section possible to cut flower into two equal parts
(c) when cutting flower through any plane is not possible

Ans. (b)

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Dispersal of Papaver seeds is by
(a) Animal
(b) Wind
(c) Water
(d) Censer mechanism

Answer. (d)

Which part of a simple leaf is modified into an axis bearing leaflets in a compound leaf ?
(a) Petiole
(b) Leaf base
(c) Costa
(d) Veins

Answer. (c)

Potato, tomato, brinjal, mustard and cauliflower belong to how many genera?
(a) Five
(b) Four
(c) Three
(d) Two

Answer. (c)

The carpels are obliquely placed in
(a) Brassicaceae
(b) Solanaceae
(c) Liliaceae
(d) Asteraceae

Answer. (b)

Sessile and bisexual flowers arranged in acropetal succession are found in
(a) Spadix
(b) Corymb
(c) Spike
(d) Raceme

Answer. (c)

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A group of simple fruits developed from a single flower is
(a) Cypsela
(b) Caryopsis
(c) Etaerio
(d) Berry

Answer. (c)

Reticulate venation, unisexual flowers and stipular tendrils are found in
(a) Smilax
(b) Paris
(c) Dracaena
(d) Yucca

Answer. (a)

In Passiflora, the tendril is a modification of
(a) Terminal bud
(b) Axillary bud
(c) Leaf
(d) Root

Answer. (b)

A modification of a bud that can bear leaves, flowers and fruits and may also become branched is called
(a) Prickle
(b) Spine
(c) Thorn
(d) Trichome

Answer. (c)

Date palm is
(a) Caudex
(b) Excurrent
(c) Culm
(d) Deliquescent

Answer. (a)

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Compound apocarpous gynoecium is found in
(a) Lily
(b) Hollyhock
(c) Lotus
(d) Pumpkin

Answer. (c)

Which statement is wrong for compositae?
(a) 5-lobed stamens
(b) Syngenesious stamens
(c) Basal ovule
(d) Ligulate ray florets

Answer. (a)

Black pepper is
(a) Tree
(b) Climber
(c) Shrub
(d) Herb

Answer. (a)

The botanical name of ‘lentil’ is
(a) Cajanus cajan
(b) Dolichos lablab
(c) Lens esculenta
(d) Vigna radiatus

Answer. (c)

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Equivalent to perianth is
(a) Glume
(b) Palea
(c) Lemma
(d) Lodicules

Answer. (d)

Floating roots are a feature of
(a) Trapa
(b) Jussiaea
(c) Tinospora
(d) Trichosanthes

Answer. (b)

The edible part of the coconut is
(a) Endocarp
(b) Mesocarp
(c) Aril
(d) Seed/Endosperm

Answer. (d)

Red Pepper is
(a) Capsicum annuum
(b) Solanum nigrum
(c) Lycopersicum esculentum
(d) Physalis peruvianum

Answer. (a)

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Vegetative reproduction occurs by bulbil in
(a) Agave
(b) Colocasia
(c) Zingiber
(d) Vallisneria

Answer. (a)

Potato is multiplied vegetatively with the help of
(a) Corm
(b) Rhizome
(c) Tuber
(d) Phyllode

Answer. (c)

Structure equivalent to perianth is
(a) Superior palea
(b) Inferior palea
(c) Glumes
(d) Lodicules

Answer. (d)

The dry indehiscent single seeded fruit formed from bicarpellary syncarpous inferior ovary is
(a) Cremocarp
(b) Caryopsis
(c) Cypsela
(d) Berry

Answer. (c)

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Thick roots hanging down from Banyan tree are
(a) Stilt roots
(b) Prop roots
(c) Pneumatophores
(d) Buttress roots

Answer. (b)

 

The character found only in halophytes is
(a) Vivipary
(b) Velamen
(c) Heterophylly
(d) Sunken stomata

Answer. (a)

Mango juice is got from
(a) Epicarp
(b) Mesocarp
(c) Endocarp
(d) Pericarp and thalamus

Answer. (b)

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A family delimited by type of inflorescence is
(a) Fabaceae
(b) Asteraceae
(c) Solanaceae
(d) Liliaceae

Answer. (b)

Pulses are obtained from
(a) Fabaceae
(b) Asteraceae
(c) Poaceae
(d) Solanaceae

Answer. (a)

Hair present on the cob of corn are
(a) Seed hairs
(b) Modified hairs of bracts
(c) Styles
(d) Stigmas

Answer. (d)

The edible part of Banana is
(a) Epicarp
(b) Epicarp and Mesocarp
(c) Mesocarp and less developed endocarp
(d) Endocarp and less developed mesocarp

Answer. (c)

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In a multilocular ovary, ovules are borne on the entire inner surface. Placentation is
(a) Superficial
(b) Marginal
(c) Parietal
(d) Axile

Answer. (a)

Finely dissected leaves occur in
(a) Free floating plants
(b) Rooted floating leaved plants
(c) Submerged plants
(d) Emerged plants

Answer. (c)

Stamens with free anthers but filaments fused into a number of groups are
(a) Polyadelphous
(b) Diadelphous
(c) Monadelphous
(d) Syngenesious

Answer. (a)

Papilionaceous flower with a large vexillum covering two wings and the wings covering the keel has corolla aestivation of
(a) Descending imbricate
(b) Ascending imbricate
(c) Twisted
(d) Valvate

Answer. (a)

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Parachute type of seed dispersal occurs in
(a) Tomato
(b) Mustard
(c) Pea
(d) Cotton

Answer. (d)

A fruit without seeds is not possible in the case of
(a) Grape
(b) Pomegrante
(c) Orange
(d) Lemon

Answer. (b)

Single seeded fruit develops from
(a) Tricarpellary ovary
(b) Bicarpellary syncarpous ovary
(c) Multicarpellary syncarpous ovary
(d) Pistil having single ovule

Answer. (d)

Which of the following is not related to corm?
(a) Tunic
(b) Lateral buds
(c) Nodes
(d) Scale leaves

Answer. (a)

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In some halophytes, seeds germinate within fruits while attached to the parent plant. The phenomenon is
(a) Vivipary
(b) Halophytosis
(c) Monocarpic
(d) Vernalisation

Answer. (a)

Endosperm is formed in angiosperm due to double fertilization. It is, however, absent in certain seeds due to lack of
(a) Certain enzymes
(b) Growth hormone
(c) Dicotyledonous hormone
(d) Nutrients

Answer. (d)

A fruit having endocarp with sub-epidermal juicy hair, spongy white mesocarp and leathery epicarp with oil glands is
(a) Hesperidium
(b) Pome
(c) Pepo
(d) Drupe

Answer. (a)

Which of the following is an oil seed plant ?
(a) Sunflower
(b) Hibiscus
(c) Marigold
(d) Rose

Answer. (a)

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In catkin, the flowers are
(a) Unisexual and sessile
(b) Bisexual and sessile
(c) Unisexual and pedicellate
(d) Bisexual and pedicellate

Answer. (a)

An inflorescence having a number of achlamydeous male flowers surrounding a single achlamydeous female flower is
(a) Verticillaster
(b) Cyathium
(c) Spadix
(d) Hypanthodium

Answer. (b)

A fleshy root tapering at both ends is
(a) Fusiform
(b) Conical
(c) Napiform
(d) Tuberous

Answer. (a)

Axile placentation occurs in
(a) Asteraceae and Fabaceae
(b) Brassicaceae and Solanaceae
(c) Solanaceae and Liliaceae
(d) Brassicaceae and Fabaceae

Answer. (c)

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Millets belong to
(a) Fabaceae
(b) Poaceae
(c) Liliaceae
(d) Asteraceae

Answer. (b)

A monocot showing reticulate venation is
(a) Bambusa
(b) Smilax
(c) Callophyllum
(d) Ginkgo

Answer. (b)

Family Fabaceae belongs to series
(a) Inferae
(b) Thalamiflorae
(c) Calyciflorae
(d) Disciflorae

Answer. (c)

Hesperidium occurs in
(a) Orange and Lemon
(b) Pineapple and Guava
(c) Banana and Papaya
(d) Apple and Grapes

Answer. (a)

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In cyathium, the ratio between female to male flowers is
(a) One : One
(b) One : Many
(c) Many : One
(d) Many : Many

Answer. (b)

In pulses, protein is stored in
(a) Cotyledons
(b) Endosperm
(c) Pericarp
(d) Seed coat

Answer. (a)

Name the plant, from the seeds of which oil is obtained
(a) Cicer arietinum
(b) Saccharum officinarum
(c) Saccharum munja
(d) Arachis hypogea

Answer. (d)

Which of the following are similar type of inflorescence ?
(a) Raceme and cyathium
(b) Verticillaster and spike
(c) Corymb and umbel
(d) Hypanthodium and catkin

Answer. (c)

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A fruit in which part other than that of the ordinary fruit is also edible is
(a) Syconus
(b) Sorosis
(c) Samara
(d) Drupe

Answer. (b)

Inflorescence in coconut is
(a) Compound spadix
(b) Hypanthodium
(c) Cyathium
(d) Compound umbel

Answer. (a)

Which of the following represents the edible part of the fruit of litchi?
(a) Mesocarp
(b) Endocarp
(c) Pericarp
(d) Juicy aril

Answer. (d)

Fibrous root systems are mostly found in
(a) Dicot plants
(b) Monocot plants
(c) Pteridophytes
(d) Bryophytes

Answer. (b)

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If the position of the ovary is below the sepals, petals, and stamens, the flower is called
(a) Epigynous
(b) Perigynous
(c) Mesogynous
(d) Metagynous

Answer. (a)

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