The given diagram shows :

 

1.  An alga that lacks flagellated cells
2.  A liverwort
3.  A heterosporous pteridophyte
4.  A gymnosperm with non motile sperms

Subtopic:  Pteridophytes: Heterospory |
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Identify the statement that most accurately describes the plant shown in the given figure:

 
(1) This the male prothallus of Marchantia; A is antheridiophore and B is Gemma cup

(2) This the female prothallus of Marchantia; A is archegoniophore and B is Gemma cup

(3) This the male prothallus of Sphagnum; A is antheridiophore and B is Gemma cup

(4) This the female prothallus of spahgnum; A is archegoniphore and B is Gemma cup

Subtopic:  Bryophytes (Liverworts) |
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Which one is a wrong statement?

(1) Archegonia are found in Bryophyta, Pteridophyta and Gymnosperms.

(2) Mucor has biflagellate zoospores.

(3) Haploid endosperm is typical feature of gymnosperm.

(4) Brown algae have chlorophyll-a and c, and fucoxanthin.

Subtopic:  Pheophyceae: Brown Algae | Gymnosperms: I | Gymnosperms |
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Read the following five statements (I to V) and select the option with all correct statements.

I. Mosses and lichens are the first organisms to colonise a bare rock.

II. Selaginella is a homosporous pteridophyte.

III. Coralloid roots in Cycas have VAM.

IV. main plant body in bryophytes is gametophytic, whereas in pteridophytes it is sporophytic.

V. In gymnosperms, male and female gametophytes are present within sporangia located on sporophyte.

(1) I, III and IV

(2) II, III and IV

(3) I, IV and V

(4) II, III and V

Subtopic:  Bryophytes | Gymnosperms: I | Pteridophytes | Gymnosperms |
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Zygotic meiosis is characteristic of

(1) Marchantia

(2) Fucus

(3) Funaria

(4) Chlamydomonas

Subtopic:  Life Cycle Patterns in Plants |
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An example of colonial alga is

(1) Chlorella

(2) Volvox

(3) Ulothrix

(4) Spirogyra

Subtopic:  Algae |
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Select the mismatch

(1)

Pinus

Dioecious

(2)

Cycas

Dioecious

(3)

Salvinia

Heterosporous

(4)  

Equisetum     

Homosporous
Subtopic:  Examples of Gymnosperms |
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Double fertilisation is exhibited by

(1) gymnosperms

(2) algae

(3) fungi

(4) angiosperms

Subtopic:  General Account of Angiosperms |
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Life cycle of Ectocarpus and Fucus respectively are

(1) Haplontic, Diplontic

(2) Diplontic, Haplodiplontic

(3) Haplodiplontic, Diplontic

(4) Haplodiplontic, Haplontic

Subtopic:  Life Cycle Patterns in Plants |
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Conifers are adapted to tolerate extreme environmental conditions because of

(1) broad hardy leaves

(2) superficial stomata

(3) thick cuticle

(4) the presence of vessels

Subtopic:  Examples of Gymnosperms |
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