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1.

Dry indehiscent single-seeded fruit formed from biscarpellary syncarpous inferior ovary isA. CremocarpB. CaryopsisC. CypselaD. Berry.

Answer» Correct Answer - C
2.

Which of the following statements are correct (i) When a fruit develop from the inflorescence, it si composite (ii) Mesocarp is the edible part in apple (iii) Gynobasic style is seen in Ocimum (iv) Hypanthodium is a special type of inflorescence found in Euphorbia speciesA. a ,d correctB. a ,c correctC. a , b correctD. b , d correct

Answer» Correct Answer - B
3.

Fleshy indehiscent fruit formed from tricarpellary, syncarpous, inferior ovary with parietal placentation isA. PomeB. PepoC. HesperidiumD. Synconus

Answer» Correct Answer - B
Fleshy indehiscent fruit formed from tricarpellary, syncarpous, inferior ovary with parietal placentation is pepo.
4.

A fruit develop from a consensed inflorescence isA. Simple fruitB. Aggregate fruitC. Composite fruitD. Etaerio

Answer» Correct Answer - C
5.

An endible inflorescence isA. Raphanus sativusB. Brassica oleraceaC. Brassica rapaD. Mustard

Answer» Correct Answer - B
An edible inflorescence in Brassica oleracea.
6.

The most advanced type of inflorescence isA. CorymbB. CapitulumC. SpadixD. Polychasical cyme

Answer» Correct Answer - B
The most advanced type of inflorescence is capitulum.
7.

Which of the follwong statement is ture ?A. in onion th eundergourn swollen poriton is rhizomeB. in colcasi vegetative reproduction takes place vie cormC. mint is a suckerD. in antigonon offset are the sturctures for vegetiativ propagation

Answer» Correct Answer - B
8.

Match column I with column II and select the correct option from the given codes. `{:("Column I",,"Column II"),("A. Pedicel",,"(i) Reduced leaf"),("B. Peduncle",,"(ii) Stalk of the flower"),("C. Bract",,"(iii) Stalk of the leaf"),("D. Petiole",,"(iv) Infloresences axis"):}`A. A-(ii),B-(iv),C-(i),D-(iii)B. A-(iii),B-(iv),C-(i),D-(ii)C. A-(iii),B-(ii),C-(i),D-(iv)D. A-(ii),B-(iii),C-(i),D-(iv)

Answer» Correct Answer - A
9.

The essential chemical components of many coenzymes areA. nucleic acidsB. carbohydratesC. vitaminsD. proteins

Answer» Correct Answer - C
10.

Which of the following plants are used as green manure in crop fields and in sandy soilsA. Crotalaria juncea and Alhagi camelorumB. Calotropis procera and Phyllanthus niruriC. Saccharum munja and Lantana CamaraD. Dichanthium annulatum and Azolla nilotica.

Answer» Correct Answer - A
Plants which are used as green manure in crop fields and in sandy soil are Crotalaria juncea and Alhagi comelorum.
11.

Dry indehiscent single-seeded fruit formed from biscarpellary syncarpous inferior ovary isA. CremocarpB. CaryopsisC. CysellaD. Berry

Answer» Correct Answer - C
Dry indehiscent single seeded fruit formed from bicarpellary syncarpous inferior ovary is cypsela.
12.

Assertion. Flowers are structures of sexual reproduction . Reason. Various embryological processess of plants occur in the flower.A. If both Assertion and Reason are true and the Reason is a correct explanation of the Assertion.B. If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion.C. If Assertion is true but the Reason is false.D. If both Assertion and Reason are false.

Answer» Correct Answer - A
13.

Assertion : An ovlue is tranformed into a fruit after fertilization. Reason : The fruits are formed ony from ovules.A. If both Assertion and Reason are true and the Reason is a correct explanation of the Assertion.B. If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion.C. If Assertion is true but the Reason is false.D. If both Assertion and Reason are false.

Answer» Correct Answer - D
14.

Assertion : In head inflorescence , florets are arranged centrifugally . Reason : There are always two types of florets in head.A. If both Assertion and Reason are true and the Rea-son is the correct explanation of the Assertion.B. If both Assertion and Reason are true and the Rea-son is not the correct explanation of the Assertion.C. If Assertion is true, but Reason is false.D. If Assertion is wrong and Reason is right

Answer» Correct Answer - D
15.

Assertion : Flower of racemose inflorescence are pollinated by insects Reason : In Racemose head inflorescence, the florets are arranged in a centripetal fashion.A. If both the assertion and the reason are true and the reason is a correct explanation of the assertionB. If both the assertion and reason are true but the reason is not a correct explanation of the assertionC. If the assertion is true but the reason is falseD. If both the assertion and reason are false

Answer» Correct Answer - B
In racemose head, the main axis or receptacle is suppressed, becoming almost flat. It bears a mass of small sessile flowers (florets) on its surface, with one or more whorls of bracts at the base forming an involucre. The florets are arranged in a centripetal fashion, i.e., younger towards the centre and older towards the periphery. The advantages of this kind of inflorescence are that the head as a whole becomes more showy and attractive and the florets being close together, one or a few insects can pollinate most of them within a short time.
16.

Assertion : In head inflorescence , florets are arranged centrifugally . Reason : There are always two types of florets in head.

Answer» Correct Answer - D
17.

In sunflowr (capitulum inflorescence) ray florets areA. bisexualB. unisexualC. asexualD. none of these

Answer» Correct Answer - B
18.

In Head or Capitulum inflorescenceA. Ray florets: pistillate and neuter, actinomorphicB. Disc florets: bisexual, zygomorphicC. Ray florets: plstillate or neuter, zygomorphicD. Disc florets: pistillate, actinomorphic

Answer» Correct Answer - C
19.

Characteristic inflorescence of family composite sunflower isA. CapitulumB. Cymose headC. CatkinD. Spadix

Answer» Correct Answer - A
20.

Select an incorrect statement w.r.t. capitulum inflorescence of sunflowerA. Main axis becomes a flat receptacleB. Florets are sessile and many in numberC. Ray florets are bisexualD. Disc florets are actinomorphic

Answer» Correct Answer - C
21.

Pendulous spike in leaf axis that bears unisexual flowers is calledA. PanicleB. CatkinC. SpikeletD. Raceme

Answer» Correct Answer - B
22.

An achlamydeous (naked) flower is found inA. headB. cyathiumC. umbelD. hypanthodium

Answer» Correct Answer - B
23.

A bulb without tunic and loosely arranged scale leaves is called scaly or imbricated naked bulb. It is found inA. onionB. garlicC. liliesD. All correct.

Answer» Correct Answer - C
24.

Pick out the plant with unipinnate type of compound leaves from the list given below and say why It Is categorised so ? Trifolium, Neem, Moringa.

Answer» The leaves of Neem are unipinnate because it is divided only once in a pinnate fashion.
25.

The leaves of Utricularia plant are modified intoA. HooksB. TendrilsC. BladdersD. Pitchers

Answer» Correct Answer - C
26.

Syngernesious condition of stamens is found in familyA. AsteraceaeB. LiliaceaeC. CruciferaeD. Malvaceae.

Answer» Correct Answer - A
In Family Asteraceae, another syngenesious (synantherous) in which stamens are fused together at their edges by another only, forming a ring around the gynoecium. The filaments are free, e.g., sunflower.
27.

Beauty of Bougainvillea flower is due toA. CorollaB. CalyxC. BractsD. Androecium

Answer» Correct Answer - C
Beauty of Bougainvilla flower is due to petaloid bract (Brightly coloured petal like bract)
28.

Beauty of Bougainvillea flower is because ofA. PetalsB. CaylxC. BractsD. Sepeals

Answer» Correct Answer - C
29.

Beauty of Bougainvillea flower is due toA. CorollaB. BractsC. CalyxD. Androecium

Answer» Correct Answer - B
30.

Two minute scales or lodicules occur inA. Citrus medicaB. Triticum aestivumC. Helianthus annusD. Gossypium herbaceum

Answer» Correct Answer - B
Lodicules are modified tepals (Perianth) Perianth : 2, polyphyllous, small hyaline membranous antero-lateral scales called lodicules, hairy or smooth, whitish, inferior occur in Triticum aestivium.
31.

the infloresence of grass/sedge/rice/family gramineae isA. SpikeB. ThyrsusC. SpikeletD. Raceme

Answer» Correct Answer - C
The inflorescence of Grass/Sedge/Rice/family Gramineae is spikelet.
32.

Infloresence of liliaceae isA. actinomorphicB. trimerousC. pentamerousD. imperfect

Answer» Correct Answer - B
33.

Assertion : Verticillaster is a cymose inflorescence Reason : The main axis and lateral branches of inflorescence end in flowers.A. If both the assertion and the reason are true and the reason is a correct explanation of the assertionB. If both the assertion and reason are true but the reason is not a correct explanation of the assertionC. If the assertion is true but the reason is falseD. If both the assertion and reason are false

Answer» Correct Answer - A
Cymose inflorescence is the name of determinate or definite inflorescence in which the tip of the main axis terminates in a flower and further growth continues by one more lateral branches which also behave like the main axis.
Verticillaster is a special form of cymose inflorescence. The first axis ends in a flower, it bears two lateral branches, each ending in a flower, succeeding lateral branches are produced in an alternating manner.
34.

Sucker are I Formed from the inernode of undergound stem II fromed from the node of undergoound stem III roots which are formed from the upper poriton of nodes IV roots which are formed form the lower portion of nodesA. I II and IIIB. I and IIC. II and IVD. I and III

Answer» Correct Answer - A
35.

All given statement w.r.t. cymose infloresence are correct exceptA. Centrifugal opening pattern of flowersB. Unlimited growth of axisC. Main axis terminates in a flowerD. Basipetal arrangement of flowers.

Answer» Correct Answer - B
36.

Fill in the blanks : a. In racemose type of inflorescence the flowers are borne laterally in a ….1… succession b. In cymose type of inflorescence the flowers are borne in a …2… order.A. a-acropetal,2-basipetalB. 1-basipetal,1-acropetalC. 1-acropetal,2-acropetalD. 1-basipetal,2-basipetal

Answer» Correct Answer - A
a. In racemose type of inflorescence the flowers are borne laterally is an acropetal succession
b. In cymose type of inflorescence the flowers are borne in a basipetal order.
37.

Name the infloresence in which the peduncle is disc like and bears sessil flowers lendthA. corymbB. capitateC. catkinD. umbel

Answer» Correct Answer - B
38.

Spadix inflorescence with fleshy axis enclosed by one ore more large bracts are found inA. mulberryB. colcosiaC. achyranthesD. none of these

Answer» Correct Answer - B
39.

The special type of inflorescence found in ficus where the female flower are at bottom and male flower near ostiole and enclosed within a cup shaped fleshy thalamus (receptacle) with ostiole is calledA. CyathiumB. VerticillasterC. SpadixD. Hypanthodium

Answer» Correct Answer - D
40.

Glumes areA. calyx like green leafy brateoles present in wholr saor whorls below the calyx occuring in mosit memebersB. small dry scaly brcts found in spikelet of thememeber of family poaceaeC. green coloured and inne or more whols around and below the entire inflreceD. brightly colourd appearing like the petals of flowers

Answer» Correct Answer - C
41.

A membraous small bract different for involucral bracts occurs at the base of each flret of memebers of the familyA. asterceaeB. caryophyllaceaeC. bracssicaeaD. papilonacea

Answer» Correct Answer - D
42.

Opening of flowers in a cymose infloresence isA. centrifugalB. acropetalC. centripetalD. basipetal

Answer» Correct Answer - A
43.

Cyathium is characterised by I single female flower surrounded by manay male flowers II as involucre of bracts enclosing all the fowers III fleshy infloresence axis with a pear shaped cavity inside IV single male flowr surrounded by many femal flowerA. I II and IIIB. I and IIIC. II and IVD. I and III

Answer» Correct Answer - D
44.

The special inflorescence in which involucre or bracts fuse ot form a cup shaped structrue having aehlamydoes flower is charcteristic to the familyA. euphobiaceaeB. labiataeC. ramunculaceaeD. solanceae and cruciferae

Answer» Correct Answer - A
45.

Assertion : In cynthium, several male flowers surround a single female flower Reason : The involucre is nectariferous.A. If both the assertion and the reason are true and the reason is a correct explanation of the assertionB. If both the assertion and reason are true but the reason is not a correct explanation of the assertionC. If the assertion is true but the reason is falseD. If both the assertion and reason are false

Answer» Correct Answer - B
Cyathium is a special kind of inflorescence found in Euphorbia, i.e., Poinsettia and Euphorbia
In cyathium there is a cup - shaped involucre, often provided with nectar - secreting glands. The involucre encloses a single female flower in the centre, seated on a comparatively long stalk and a number of male flowers around this, seated on short slender stalks.
46.

Assertion : Compound umbel is branched Reason : In compound umbel, both involucre and involucles are present.A. If both the assertion and the reason are true and the reason is a correct explanation of the assertionB. If both the assertion and reason are true but the reason is not a correct explanation of the assertionC. If the assertion is true but the reason is falseD. If both the assertion and reason are false

Answer» Correct Answer - B
Compound umbel is branched umbel, where several small or daughter umbels arise from a common point in an umbellate fashion. A whorl of bract, called involucre is present at the base of the daughter umbels are called involucels.
47.

Inflorescene with unbranched axis is calledA. compoundB. racemoseC. spikeD. verticillaster

Answer» Correct Answer - A
48.

Study the following statements and select the correct option (A) Buds are present in the axil of leaflets of the compound leaf (B) Pulvinus leaf-base is present in some leguminous plants (C) In Alstonia,the petioles expand,become green and synthesize food (D) Opposite phyllotaxy is seen in guava.A. II and IV are correct but I and III are incorrectB. I and III are correct but II and IV are incorrectC. I nd IV are correct but II and III are incorrectD. I and II are correct but III and IV are incorrect

Answer» Correct Answer - A
In some legumes the leaf base may become swollne which is called the pulvinus
In opposite phylotaxy a pair of leaves arises at each noede and lie apposite iot each other as in colortopis and guava plants
49.

Identify the incorrectly matched pair of palmate comound leaf typeA. trifoliate - wood appleB. multifoliate - silk cotton treeC. bifoliate - cleaomeD. quadrifoliate - marsilea

Answer» Correct Answer - C
50.

In a comound umberl the involucre subtendsA. entire inflorescenceB. an umbeletC. a single flowerD. all of these

Answer» Correct Answer - B