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Neet Biology Morphology Of Flowering Plants Mcq
Quiz 7
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Q.1
In the legume seed, food is stored in ... ...[ CPMT 1994]
0%
a) Cotyledons
0%
b) Endosperm
0%
c) Perisperm
0%
d) Seed coats
Explanation
Legume seeds are dicotyledonous non- endospermic seed, stored food material is in cotyledons. Answer : (a)
Q.2
Plant capable of growing in nitrogen deficient soil is ... ..[ CPMT 2001]
0%
a) Orchids
0%
b) Ferns
0%
c) Insectivorous plants
0%
d) Rafflesia
Explanation
Carnivorous plants have adapted to grow in places where the soil is thin or poor in nutrients, especially nitrogen, such as acidic bogs. Answer : (c)
Q.3
Bacteria found in root nodules of legumes are ... ..[ DPMT 2002]
0%
a) Nitrobacter
0%
b) Nitrosomonas
0%
c) Rhizobium
0%
d) Azotobacter
Explanation
Rhizobium is a genus of bacteria associated with the formation of root nodules on plants. These bacteria live in symbiosis with legumes. They take in nitrogen from the atmosphere and pass it on to the plant, allowing it to grow in soil low in nitrogen. Answer : (c)
Q.4
Butterfly shaped flower with one standard, two wing-like and two keeled petals belong to ... ...[ AIIMS 2000 ]
0%
a) Compositae
0%
b) Rubiaceae
0%
c) Malvaceae
0%
d) Papilionaceae
Explanation
In the flowers of Family Papilionaceae, the corolla comprises of 5 papilionaceous petals, posterior odd petal (outermost) is called standard, two lateral ones the wings and the two anterior one fused to form a keel or carina (a boat-shaped structure). Answer : (d)
Q.5
Name the plant from seeds of which oil is obtained ... .... [ MPPMT 2001]
0%
a) Cicer arietinum
0%
b) Saccharum officinarum
0%
c) Saccharum munja
0%
d) Arachis hypogaea
Explanation
Answer : (d)
Q.6
A family belongs to inferae of gamopetalae ... ... [ CBSE 1990]
0%
a) Fabaceae
0%
b) Asteraceae
0%
c) Solanaceae
0%
d) Liliaceae
Explanation
Gamopetalae means petals are united. Inferae means ovary is inferior and stamens are equal to the number of corolla lobes. Asteraceae Corolla: Petals 5, gamopetalous, ligulate, valvate, superior, yellow. Androecium: Stamens 5, epipetalous, syngenesious, basifixed, dithecous, introrse, superior. Gynoecium: Bicarpellary, syncarpous, inferior, unilocular, basal placentation, single basal ovule; style simple, stigma bifid. Answer : (b)
Q.7
Assertion: In cymose tap root system, the oldest branch lies very close to growing point of root while the youngest branch is farthest away from it . Reason: In cymose, tap root system, the primary root itself stops growing after some time, but secondary roots carry on further growth of the root system ... .... [ AIIMS 2007]
0%
a) Both Assertion and Reason are true and Reason is the correct explanation of Assertion
0%
b) The Assertion and Reason are true but Reason is not correct explanation of Assertion
0%
c) Assertion is true but, Reason is false
0%
d) Assertion is false but, Reason is true
Explanation
Answer : (a)
Q.8
Papilionaceous corolla occurs in ... .. [ Wardha 2001]
0%
a) Brassicaceae
0%
b) Asteraceae
0%
c) Fabaceae
0%
d) Poaceae
Explanation
Papilionaceous flowers are flowers with the characteristic irregular and butterfly-like corolla found in many, though not all, plants of the species-rich Fabaceae Answer : (c)
Q.9
Dry fruit 'Chilgoza' is ... ...[ BHU 2005]
0%
a) Fruit of Cycas
0%
b) Seed of Cycas
0%
c) Fruit of Pinus gerardiana
0%
d) Seed of Pinus gerardiana
Explanation
Pinus gerardiana, known as the chilgoza pine or neja is a pine native to the northwestern Himalayas in eastern Afghanistan, Pakistan, and northwest India, Answer : (d)
Q.10
Which one is correctly matched .... .... [ AIIMS 2012]
0%
a) Dahlia - Fasciculated root
0%
b) Monstera - Fibrous roots
0%
c) Basil - Prop root
0%
d) Azadirachta - Adventitious roots
Explanation
Even though roots of Dahlia often called bulbs, the roots of Dahlias are actually tubers, originate fron one point A cluster of roots arising from one point which becomes thick and fleshy due to storage of food is known as fasciculated tuberous root. Monstera the plant roots both into the soil and over trees, it is considered a hemiepiphyte. Basil have Fibrous roots Azadirachta Neem has a strong root system with a deep tap root and extensive lateral roots where as adventitious roots are plant roots that form from any nonroot tissue and are produced both during normal development Answer : (a)
Q.11
Dry indehiscent single seeded fruit formed from bicarpellary syncarpous inferior ovary is ... .. [ BHU 2001]
0%
a) Cremocarp
0%
b) Caryopsis
0%
c) Cypsela
0%
d) Berry
Explanation
Cypsela develops from an inferior ovary, it contains extra tissues around the true pericarp Cypsela: It is a small, single-seeded dry fruit which develops from bi-carpellary, syncarpous inferior ovary. Pericarp and seed coat are free from each other. A dry, indehiscent fruit derived from an inferior, bicarpellate ovary; e.g., in Asteraceae (sunflower). Similar to an achene, but derived from an inferior ovary and attached to the fruit wall throughout, i.e., not at a single place as in an achene. Caryopsis are dry, indehiscent, the small single-seeded fruit develops from unilocular single ovule, superior ovary of the multi carpellary gynoecium. It differs from typical achenes as their pericarp is completely fused with the seed coat or testa, eg, Poaceae. Cremocarp is bilocular and two seeded schizocarpic fruits (small, dry) developed from the inferior ovary of bis carpellary, syncarpous gynoecium possessing persistent stylopodium, eg, Apiaceae. Berry is fleshy, indehiscent, few to multi-seeded fruit derived from multi carpellary syncarpous gynoecium.The fleshy pericarp of berry consists of epicarp. Mesocarp and endocarp. Answer : (c)
Q.12
In Sonneratia many root come out of the substratum and grow vertically upwards. They are .. ... [ HPPMT 2011]
0%
a) Pneumatophores
0%
b) Prop roots
0%
c) Stilt roots
0%
d) None of the above
Explanation
Answer : (a)
Q.13
Lady's Finger/Okra belongs to family ... ...[ CPMT 2009]
0%
a) Malvaceae
0%
b) Liliaceae
0%
c) Brassicaceae
0%
d) Cucurbitaceae
Explanation
Finger/Okra belongsto the Malvaceae Family Answer : (a)
Q.14
An insectivorous plant is ... .. [ KCET 2001]
0%
a) Opuntia
0%
b) Crotalaria
0%
c) Eichhornia
0%
d) Utricularia
Explanation
Insectivorous plants include the Venus flytrap, several types of pitcher plants, butterworts(Pinguicula), sundews(Drosera), bladderworts(Utricularia,), the waterwheel plant(Aldrovanda vesiculosa), brocchinia and many members of the Bromeliaceae. Answer : (d)
Q.15
In Ipomoea batatas/Sweet potato the food is stored in ... ..[ AMU 2005]
0%
a) Root tuber
0%
b) Stem tuber
0%
c) Bud
0%
d) Leaves
Explanation
Root tubers are perennating organs, thickened roots that store nutrients over periods when the plant cannot actively grow, thus permitting survival from one year to the next. Examples of plants with notable tuberous roots include the sweet potato, cassava, and dahlia. Answer : (a)
Q.16
Trimerous unisexual flowers occur in ... ... [ KCET 2004]
0%
a) Tamarind
0%
b) Cocos
0%
c) Pea
0%
d) Hibiscus
Explanation
Trimerous flowers have floral organs three, or in multiples of three and, these are the characteristic features of the monocots. Cocos nucifera (coconut) is a monocot (family Arecaceae), so the flowers are trimerous. The plant is dioecious and the flowers are unisexual because the staminate and pistillate flowers occur separately on the different plants. Answer : (b)
Q.17
Geocarpic fruit is ... ..[ CBSE 2000 ]
0%
a) Mango
0%
b) Orange
0%
c) Water Melon
0%
d) Peanut
Explanation
Peanut legumes have the peculiar habit of ripening underground, a phenomenon known as geocarpy. After pollination and the withering of the flower, an unusual stalklike structure called a peg grows from the base of the flower toward the soil. The fertilized ovules are carried downward in the sturdy tip of the peg until the tip is well below the soil surface, at which point the peg tip starts to develop into the characteristic pod Answer : (d)
Q.18
In Amorphophallus, vegetative multiplication occurs through ... ... [ Pb PMT 2005]
0%
a) Bulbils
0%
b) Rhizome
0%
c) Corm
0%
d) Offset
Explanation
Amorphophallus came from a variety of sources, mostly as small corms. Answer : (c)
Q.19
Edible part of Paddy is ... .. [ Odisha 2006]
0%
a) Endosperm
0%
b) Cotyledons
0%
c) Fruit
0%
d) Endosperm and embryo
Explanation
The endosperm is the largest portion of the rice grain. The bran, germ (embryo) and endosperm are the edible portions of the grain. Answer : (d)
Q.20
Ovarian parts are fused, styles and stigmas free but ovary part is unilocular with free central placentation. the plant is ... ..[ EAMCET 2008]
0%
a) Michelia
0%
b) Nymphaea
0%
c) Abutilon
0%
d) Dianthus
Explanation
Dianthus (are also called “pinks.”) is a genus of flowering plants in the family Caryophyllaceae, Calyx (sepals): 4 to 5, separate or sometimes connate (=united), often imbricate (=overlapping) with membranous margin Corolla (petals): 4 to 5, separate, often with distinct claw and limb, petal apex often notched giving bilobed or fringed margin Androecium: 5 or 10 in two whorls Gynoecium: 2 to 5 carpels, united, superior ovary (=hypogynous), styles free and equal to carpel number, ovules have free central placentation Answer : (d)
Q.21
Phyllotaxis is ... .. [ AIIMS 1996]
0%
a) Mode of leaf arrangement on stem
0%
b) Types of roots
0%
c) Arrangement of sepals and petals in a flower
0%
d) Type of ovary
Explanation
Phyllotaxis or phyllotaxy is the arrangement of leaves on a plant stem Answer : (a)
Q.22
Tetradynamous condition occurs in ... ... [ AFMC 2004]
0%
a) Petunia hybrida
0%
b) Helianthus annuus
0%
c) Brassica campestris
0%
d) Hibiscus rosa sinensis
Explanation
Answer : (c)
Q.23
Flower is zygomorphic in ... .... [ CBSE 2011]
0%
a) Mustard
0%
b) Tomato
0%
c) Gulmohar
0%
d) Datura
Explanation
Zygomorphic (of a flower) having only one plane of symmetry, as in a pea or snapdragon; bilaterally symmetrical. Gulmohar (Delonix regia) is a species of flowering plant in the bean family Fabaceae The flowers are actinomorphic (radially symmetrical) or zygomorphic (bilaterally symmetrical) with 5 sepals and petals, and have both pollen-bearing and ovule-bearing parts. The sepals form a tube with lobes that are often of different lengths. Answer : (c)
Q.24
Vivipary is ... .. [ CBSE 1992]
0%
a) Seed germination with subterranean cotyledons
0%
b) Fruit development without pollination
0%
c) Seed germination with epiterranean cotyledons
0%
d) Seed germination inside the fruit while attached to the plant
Explanation
Answer : (d)
Q.25
Roots originating from parts other than radicle are ... .. [ CMC 2003]
0%
a) Stilt roots
0%
b) Adventitious roots
0%
c) Tap roots
0%
d) Fibrous roots
Explanation
Roots that develops from any part other than radicals in the plant is called as adventitious roots. Answer : (b)
Q.26
Largest family of flowering plants is ... ... [ Tamil nadu 2001]
0%
a) Fabaceae
0%
b) Liliaceae
0%
c) Poaceae
0%
d) Asteraceae
Explanation
The three largest flowering plant families containing the greatest number of species are the sunflower family (Asteraceae) with about 24,000 species, the orchid family (Orchidaceae) with about 20,000 species, and the legume or pea family (Fabaceae) with 18,000 species. Answer : (d)
Q.27
Parallel venation occurs in ... .. [ B.V. 2000 ]
0%
a) Monocots
0%
b) Dicots
0%
c) All angiosperms
0%
d) Ferns
Explanation
Monocots have parallel venation in their leaves, while dicots have netted venation. Answer : (a)
Q.28
The most important external factor for seed germination is ... ... [ CPMT 1994]
0%
a) Light
0%
b) Soil
0%
c) Oxygen
0%
d) Water
Explanation
Water, air and suitable temperature are necessary for seed germination. Water is necesssary for germination because food is stored in the seeds in dry condition Answer : (d)
Q.29
In hook climber Artabotrys, the hooks are modified ... ... [ BHU 1990 ]
0%
a) Petioles
0%
b) Axillary shoot
0%
c) Leaves
0%
d) Inflorescence axes
Explanation
Pedicel or floral stalks of Artabotrys produces a curbed hook (which are modification of inflorescence axis) to help the plant in climbing. Answer : (d)
Q.30
Fruit of Shepherd's Purse ( Capsella bursa pastoris) is ... ...[ RPMT 1996]
0%
a) Silicula
0%
b) Siliqua
0%
c) Regma
0%
d) Cremocarp
Explanation
Capsella bursa-pastoris, known as shepherd's purse because of its triangular flat fruits, which are purse-like, is a small annual and ruderal flowering plant in the mustard family (Brassicaceae) The typical fruit of the mustard family (Brassicaceae) is called a silique,a the long, narrow seed pod If a seed capsule is more than three times as long as it is wide, it is called a silique, or siliqua. If a seed capsule is less than three times longer than wide, it is called silicle or silicula. Answer : (a)
Q.31
The character found only in halophytes is ... .. [ BHU 1998]
0%
a) Vivipary
0%
b) Velamen
0%
c) Heterophylly
0%
d) Sunken stomata
Explanation
A halophyte is a salt-tolerant plant that grows in soil or waters of high salinity, coming into contact with saline water through its roots or by salt spray, such as in saline semi-deserts, mangrove swamps, marshes and sloughs and seashores Seedlings of viviparous mangrove species emerge from the fruit and drop from the plant into the salty water below. From there they have the potential to float long or short distances before taking root. Answer : (a)
Q.32
An underground specialised shoot with reduced disc like stem covered by fleshy leaves is ... .. [ JKCMEE 2000 ]
0%
a) Bulb
0%
b) Bulbil
0%
c) Rhizome
0%
d) Rhizophore
Explanation
A bulb is structurally a short stem with fleshy leaves or leaf bases that function as food storage organs during dormancy. Answer : (a)
Q.33
Aril represents edible part in ... ... [ AFMC 2009]
0%
a) Litchi
0%
b) Apple
0%
c) Mango
0%
d) Banana
Explanation
In litchi, aril forms the edible part in fruit. Litchi is a nut. Answer : (a)
Q.34
Stamens with free anthers but filaments fused into a number of groups are ... .. [ CPMT 1991]
0%
a) Polyadelphous
0%
b) Diadelphous
0%
c) Monadelphous
0%
d) Syngenesious
Explanation
Stamens with free anthers but filaments fused into a number of groups are Stamens with free anthers but filaments fused into a number of groups are Answer : (a)
Q.35
Endocarp is stony in the fruit of ... [ JIPMER 1990]
0%
a) Berry
0%
b) Pome
0%
c) Drupe
0%
d) Pepo
Explanation
Drupe is a kind of succulent fruit with a characteristic stony endocarp ,a fleshy mesocarp and a membranous epicarp. All parts of a berry are soft except the seed. The pericarp of a pome is stiff but not stony hard. Pepo has a hard epicarp and the endocarp is soft and edible. Answer : (c)
Q.36
Balanophora/Orobanche is ... ..[ BHU 1987]
0%
a) Total root parasite
0%
b) Partial root parasite
0%
c) Partial stem parasite
0%
d) Total stem parasite
Explanation
Balanophora fungosa, sometimes known as fungus root is a flowering plant in the family Orobanche (broomrape or broom-rape) is a genus of over 200 species of parasitic herbaceous plants in the family Orobanchaceae, Broomrape seedlings put out a root-like growth, which attaches to the roots of nearby hosts. Once attached to a host, the broomrape robs its host of water and nutrients. Answer : (a)
Q.37
Syconus fruit develops from ... .. [ BHU 2002 ]
0%
a) Catkin
0%
b) Verticillaster
0%
c) Hypanthodium
0%
d) Cyathium
Explanation
Syconus a type of composite fruit formed from a hollow fleshy inflorescence stalk inside which tiny flowers develop. a hypanthium or floral cup is a structure where basal portions of the calyx, the corolla, and the stamens form a cup-shaped tube. Syconus fruit develops from the hypanthodium inflorescence, Answer : (c)
Q.38
Root system grows from ... ... [ JIPMER 1998]
0%
a) Embryo of seed
0%
b) Radicle of embryo
0%
c) Plumule of embryo
0%
d) Coleoptile
Explanation
The radicle is the first part of a seedling (a growing plant embryo) to emerge from the seed during the process of germination. The radicle is the embryonic root of the plant, and grows downward in the soil (the shoot emerges from the plumule). Answer : (b)
Q.39
Myrosinase occurs in the family ... .. [ EAMCET 1994]
0%
a) Asteraceae
0%
b) Solanaceae
0%
c) Poaceae
0%
d) Brassicaceae
Explanation
Myrosinase (thioglucosidase glucohydrolase,) is a glycoprotein that catalyzes the hydrolysis of glucosinolates myrosinase enzymes that can break apart the glucosinolates into other phytonutrients called isothiocyanates. Brassicaceae family of plants, including broccoli, cabbage, cauliflower, rapeseed, mustard, and horseradish. Answer : (d)
Q.40
A flower is zygomorphic when ... ... [ Bih PMT 1991]
0%
a) Any transverse section divides it into two equal havles
0%
b) Only one transverse section divides it into two equal halves
0%
c) Every vertical section passing through its centre divides it into two equal halves
0%
d) Only one vertical section passing through its centre divides it into two equal halves
Explanation
When a flower can be divided by a single plane into two exactly similar parts; then it is said to be zygomorphic. In Pelargonium the flower is zygomorphic with a spurred posterior sepal and the petals differing in size or shape. Answer : (d)
Q.41
Petiole is modified into tendril in ... ..[ AFMC 1996]
0%
a) Passiflora
0%
b) Gloriosa
0%
c) Pisum
0%
d) Clematis
Explanation
In Clematis, petiole is modified into tendril. Leaf stalks (petioles) are modified into touch-sensetive tendrils which grip adjacent vegetation. Answer : (d)
Q.42
Spiny leaf margins are found in ... ..[ Manipal 2005]
0%
a) Opuntia
0%
b) Papaver
0%
c) Argemone
0%
d) Polyalthia
Explanation
Argemone mexicana is an erect spiny annual or biennial herb, up to 1 m tall, with a slightly branched taproot. Its stem is branched and very prickly; it exudes a yellow juice when cut. The leaves are thistle-like and alternate, without leaf stalks, toothed and with spiny margins. Answer : (c)
Q.43
Cypsela develops from ... .. [ CPMT 1996]
0%
a) Superior syncarpous ovary
0%
b) Inferior metacarpus ovary
0%
c) Inferior monocarpellary ovary
0%
d) None of the above
Explanation
Cypsela develops from an inferior ovary, it contains extra tissues around the true pericarp Cypsela: It is a small, single-seeded dry fruit which develops from bi-carpellary, syncarpous inferior ovary. Pericarp and seed coat are free from each other. Answer : (d)
Q.44
A rootless aquatic in which a portion of leaf is modified to form a bladder for catching small aquatic animals is ... .. [ DPMT 2009]
0%
a) Dionaea
0%
b) Drosera
0%
c) Utricularia
0%
d) Nepenthes
Explanation
Utricularia, is a genus of carnivorous plants plants characterized by small hollow sacs that actively capture and digest tiny animals such as insect larvae, aquatic worms, and water fleas. Answer : (c)
Q.45
Stamens of Jowar/Grass are ... . [ Wardha 2001]
0%
a) Dorsifixed
0%
b) Versatile
0%
c) Basifixed
0%
d) Adnate
Explanation
Versatile stamen in which the filament is attached to the anther above the base of the anther. Stamens of Jowar/Grass are versatile. Answer : (b)
Q.46
Match the columns [ KCET 1999]
a) Capsule
p) Paddy
b) Berry
q) Mango
c) Drupe
r) Sunflower
d) Cysela
s) Tomato
- - - -
t) Lady's finger
0%
a) a - t, b - s, c - q, d - r
0%
b) a - t, b - r , c - p, d - q
0%
c) a - s, b - t, c - q, d - r
0%
d) a - p, b - q, c - r, d - t
Explanation
Lady's finger is the fruit is a capsule up to 18 centimetres a - t, Tomatoes, peppers, cranberries, eggplants and kiwis come from a flower with one ovary, and so are also berries b - s, The mango (Mangifera indica) is a drupe c - q, Sunflower is a cypsela d - r Answer : (a)
Q.47
Haustoria or sucking roots occur in ... .. [ BHU 1996]
0%
a) Betel
0%
b) Orchids
0%
c) Cuscuta
0%
d) Tinospora
Explanation
Sucking or Haustorial roots – These roots are found in parasitic plants. Parasites develop adventitious roots from the stem which penetrate into the tissue of the host plant and suck nutrients. Answer : (c)
Q.48
Pulses are obtained from ... ... [ CBSE 1993]
0%
a) Fabaceae
0%
b) Asteraceae
0%
c) Poaceae
0%
d) Solanaceae
Explanation
Pulses are obtained from fabaceae The Fabaceae or Leguminosae, commonly known as the legume, pea, or bean family. Answer : (a)
Q.49
Which one is modified leaf ... ... [ AMU 2003]
0%
a) Pitcher of Nepenthes
0%
b) Tendril of Pisum sativum
0%
c) Spine of Cactus
0%
d) All the above
Explanation
Answer : (d)
Q.50
Plant yielding medicine for checking eye is ... ... [ DPMT 1994]
0%
a) Withania coagulans
0%
b) Atropa belladonna
0%
c) Hyoscyamus niger
0%
d) Solanum surattense
Explanation
The chemicals atropine and scopolamine, which are derived from belladonna, have important medicinal properties. Atropine and scopolamine have almost the same uses, but atropine is more effective at relaxing muscle spasms and regulating heart rate. It's also used to dilate the pupils during an eye exam. Answer : (b)
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