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Small specialised roots called coralloid roots are associated with N2-fixing cyanobacteria in

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Important Questions on Plant Kingdom

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Biology>Diversity in The Living World>Plant Kingdom>Subdivision Gymnospermae

Arrange the following plants with their respective classes in the same order. Sphenopsida, Psilopsida, Pteropsida, Lycopsida, Gnetopsida

A) Selaginella
B) Equisitum
C) Sphagnum
D) Adiantum
E) Psilotum
F) Gnetum

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Biology>Diversity in The Living World>Plant Kingdom>Subdivision Gymnospermae
Identify the plant that possess all the following characters
A) Xylem and phloem are main conducting elements.
B) Pollen grains are carried by wind.
C) Transfer of pollen is direct.
D) Ovules develop into seeds after fertilisation.
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Biology>Diversity in The Living World>Plant Kingdom>Subdivision Gymnospermae
Which of the following statements is correct?
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Biology>Diversity in The Living World>Plant Kingdom>Subdivision Gymnospermae
Winged pollen grains are present in
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Biology>Diversity in The Living World>Plant Kingdom>Subdivision Gymnospermae
Select the mismatch:
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Biology>Diversity in The Living World>Plant Kingdom>Subdivision Gymnospermae
Which of the following statements is incorrect about gymnosperms?
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Biology>Diversity in The Living World>Plant Kingdom>Subdivision Gymnospermae

Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R :

Assertion A : In gymnosperms the pollen grains are released from the microsporangium and carried by air currents.

Reason R: Air currents carry the pollen grains to the mouth of the archegonia where the male gametes are discharged and pollen tube is not formed.

In the light of the above statements, choose the correct answer from the options given below:

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Biology>Diversity in The Living World>Plant Kingdom>Subdivision Gymnospermae
Select the correct statement:
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Biology>Diversity in The Living World>Plant Kingdom>Subdivision Gymnospermae
Mycorrhizae are the example of:
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Biology>Diversity in The Living World>Plant Kingdom>Subdivision Gymnospermae
Pinus seed cannot germinate and establish without fungal association. This is because:
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Biology>Diversity in The Living World>Plant Kingdom>Subdivision Gymnospermae
In which of the following gametophyte is not independent free living?
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Biology>Diversity in The Living World>Plant Kingdom>Subdivision Gymnospermae
Conifers are adapted to tolerate extreme environmental conditions because of:
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Biology>Diversity in The Living World>Plant Kingdom>Subdivision Gymnospermae
Which is the smallest gymnosperm among the following
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Biology>Diversity in The Living World>Plant Kingdom>Subdivision Gymnospermae
The needle-like foliage leaves are found in
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Biology>Diversity in The Living World>Plant Kingdom>Subdivision Gymnospermae
Diploxylic condition occurs in Cycas in
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Biology>Diversity in The Living World>Plant Kingdom>Subdivision Gymnospermae
What is true about foliage of Cycas
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Biology>Diversity in The Living World>Plant Kingdom>Subdivision Gymnospermae
Ovules in Pinus are generally
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Biology>Diversity in The Living World>Plant Kingdom>Subdivision Gymnospermae
Who among the following was a paleobotanist?
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Biology>Diversity in The Living World>Plant Kingdom>Subdivision Gymnospermae
Megasporophyll of Cycas is homologous to
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Biology>Diversity in The Living World>Plant Kingdom>Subdivision Gymnospermae
Cycas has the largest