Pteridophytes Test 2

Total Questions:50 Total Time: 75 Min

Remaining:

 

Questions 1 of 50

Question:Which groups depend on external source of free water

Answers Choices:

Algae, mosses and ferns

Algae, mosses and gymnosperms

Mosses, ferns and gymnosperms

Only algae and mosses

Questions 2 of 50

Question:Dominant generation in pteridophytes is

Answers Choices:

Haploid

Gametophytic

Diploid

Triploid

Questions 3 of 50

Question:"Botanical snakes" are

Answers Choices:

Algae

Fungi

Bryophytes

Pteridophytes

Questions 4 of 50

Question:Heterosporous pteridophytes always produce

Answers Choices:

Monoecious gametophytes

Dioecious gametophytes

Homothallic gametophytes

None of the above

Questions 5 of 50

Question:In some of the pteridophytes and gymnosperms the sporophyll aggregate at the apices of the main stem or its branches to form definite compact structures. The compact structures are called

Answers Choices:

Sporangiophore

Sorus

Sporangium

Strobilus or cone

Questions 6 of 50

Question:Which of the following helps in coal formation

Answers Choices:

Bacteria

Gymnosperm

Pteridophytes

Archaebacteria

Questions 7 of 50

Question:Azolla is used as a biofertilizer because it

Answers Choices:

Multiplies very fast to produce massive biomass

Has association of nitrogen-fixing Rhizobium

Has association of nitrogenfixing cyanobacteria

Has association of mycorrhiza

Questions 8 of 50

Question:Most primitive living vascular plants are

Answers Choices:

Brown algae

Sphagnum

Ferns

Cycads

Questions 9 of 50

Question:Meristeles are found in

Answers Choices:

Cycas stem

Pinus needle

Fern leaf

Fern rhizome

Questions 10 of 50

Question:A collection of sporangia attached to placenta and covered over by indusium is known as

Answers Choices:

Sporophyll

Sorus

Cone

Ramenta

Questions 11 of 50

Question:During fertilization in ferns, male gamete reaches the female gamete through the agency of

Answers Choices:

Water

Insects

Chemicals

Winds

Questions 12 of 50

Question:Which is the most important group on earth

Answers Choices:

Mosses

Tracheophyta

Bryophyta

Liverworts

Questions 13 of 50

Question:Prothallusis

Answers Choices:

Gametophyte,monoecious,Autotrophs present in pteridophyte

Gametophyte, monoecious, Autotrobhs present in bryophytes

Gametophyte, dioecious, Autotrophs present in pteridophyte

Sporophyte, dioecious, heterotroph present in bryophyte

Questions 14 of 50

Question:Club moss' belongs to

Answers Choices:

Algae

Pteridophyta

Fungi

Bryophyta

Questions 15 of 50

Question:In the prothallus of a vascular cryptogam, the antherozoids and eggs mature an different times. As a result

Answers Choices:

There is no change in-success rate of fertilization

There is high degree of sterility

One can conclude that the plant is apomictic

Self fertilization is prevented

Questions 16 of 50

Question:Which one controls dehiscence of sporangium in Dryopteris

Answers Choices:

Annulus

Tapetum

Sorus

Indusium

Questions 17 of 50

Question:Presence of ciliated antherozoids in Dryopteris indicates

Answers Choices:

Terrestrial habit

Aquatic ancestry

Both (1) and (2)

None of these

Questions 18 of 50

Question:Neck canal cells in Dryopteris axe

Answers Choices:

One with two nuclei

Two

One with one nucleus

Four

Questions 19 of 50

Question:Brown hair found at the base of Pteris leaves are

Answers Choices:

Modified stipules

Modified leaflets

Ramenta

Spines

Questions 20 of 50

Question:Kidney- shaped covering of Dryopteris is

Answers Choices:

Ramentum

Placenta

Indusium

Sporophyll

Questions 21 of 50

Question:The site of spore formation in Dryopteris is

Answers Choices:

Sorus

Sporophyll

Sporophore

Sporangium

Questions 22 of 50

Question:The stele in the rachis of Pteris is

Answers Choices:

Collar shaped

Horse shoe- shaped

Omega shaped

H- shaped

Questions 23 of 50

Question:Young sporophyte of Pten's fern draws nourishment from prothallus through

Answers Choices:

Root

Rhizoids

Foot

Haustoria

Questions 24 of 50

Question:The stele of Pteridium root is

Answers Choices:

Diarch exarch

Diarch endarch

Polyarch exarch

Polyarch endarch

Questions 25 of 50

Question:Sorus bearing leaf of Pteridium is called

Answers Choices:

Ramenta

Indusium

Sporophyll

None of these

Questions 26 of 50

Question:Indusium in Pteridium is

Answers Choices:

Outer true and inner false

Only true

Outer false and inner true

Only false

Questions 27 of 50

Question:In Dryopteris

Answers Choices:

Sporophyte is parasitic over gametophyte

Sporophyte is independent

Gametophyte is independent

Both (2) and (3)

Questions 28 of 50

Question:The cells of fern prothallus contains nucleus with

Answers Choices:

4n chromosomes

3n chromosomes

2n chromosomes

n chromosomes

Questions 29 of 50

Question:In fern plant, the ejection of spores with force is achieved by the

Answers Choices:

Sporangiophore

Annulus

Stomium

Indusium

Questions 30 of 50

Question:In fern, sporangia are borne on the

Answers Choices:

Margin of leaf

Abaxial side of leaf

Adaxial side of leaf

Only on the tip of leaf

Questions 31 of 50

Question:The prothallus of fern is

Answers Choices:

Heart-shaped

Dorsiventral

Green

All of the above

Questions 32 of 50

Question:Antherozoids of fern are

Answers Choices:

Spherical

Coiled

Multiflagellate

All of the above

Questions 33 of 50

Question:The shape of sporangium in fern is

Answers Choices:

Biconvex

Circular

Biconcave

Plano-convex

Questions 34 of 50

Question:The gametophyte of fern bears

Answers Choices:

True roots

Antheridia

Archegonia

Both (2) and (3)

Questions 35 of 50

Question:Characteristic of fern is

Answers Choices:

Circinate vernation

Reticulate venation

Parallel venation

None of these

Questions 36 of 50

Question:Dispersal of spores in fern takes place through

Answers Choices:

Annulus

Stomium

Both (1) and (2)

Indusium

Questions 37 of 50

Question:A fern prothallus is bisexual. If fertilization takes place between their gametes then it is known as

Answers Choices:

Cros fertilization

Self fertilization

Isogamous

Viviparous

Questions 38 of 50

Question:Rhizophores are formed in

Answers Choices:

Bryophytes

Selaginelta

Ptehdium

Gymnosperms

Questions 39 of 50

Question:Ligulate leaves are found in

Answers Choices:

Mosses

Selaginella

Fern

Pinus

Questions 40 of 50

Question:The basal portion of ligule of Selaginella is hemispherical and is called

Answers Choices:

Glossopodium

Awn of ligule

Bundle'Sheath

Pedicel of ligule

Questions 41 of 50

Question:In which one of the following species of Selaginella, the apex continues its vegetative growth beyond the formation of strobilus

Answers Choices:

S. Helvetica

S. cuspidiata

S. rupestris

None of these

Questions 42 of 50

Question:Which of the following is not common in Funaria and Selaginella

Answers Choices:

Roots

Archegonium

Embryo

Motile sperms

Questions 43 of 50

Question:The number of male prothallial cells in Selaginella are

Answers Choices:

One

Two

Four

Nil

Questions 44 of 50

Question:The stem of Selaginella is anatomically characterised by the presence of

Answers Choices:

Siphonostele

Amphiphloic siphonostele

Protostele

Ectophloic siphonostele

Questions 45 of 50

Question:Adaxial outgrowth from the base of leaves in Selaginella is called

Answers Choices:

Stipule

Ligule

Trabaculae

Velum

Questions 46 of 50

Question:The basis of seed habit in Selaginella is

Answers Choices:

Heterospory

Reduction in the number of megaspores

Retention of a megaspores in the cone

All the above

Questions 47 of 50

Question:Heterosporous condition and ligulate leaves are found in

Answers Choices:

Funaria

Selaginella

All pteridophytes

All bryophytes

Questions 48 of 50

Question:The main plant body of Selaginella sp. is

Answers Choices:

Gametophyte

Sporophyte

Both gametophyte and sporophyte

Halophyte

Questions 49 of 50

Question:Heteromorphic alternation of generations is found in

Answers Choices:

Spirogyra

Mucor

Selaginella

Pinus

Questions 50 of 50

Question:Rhizophore in Selaginella is

Answers Choices:

A modified leaf

A root

A shoot

Organ sui genesis