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Megasporophyll of Cycas is equivalent to

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Important Questions on Plant Kingdom

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Biology>Diversity in the Living World>Plant Kingdom>Subdivision Gymnospermae
Reason for extensive distribution of monocotyledons plants like wheat, maize and barley on the earth's surface are
I) Equal distribution of water and air in the habitat
II) Adaptation to excessive water and extensive dryness
III Do not show adaptation to extensive dryness
IV) Grow in excessive water and extensive dry areas
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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
An apple showing monosporic type of embryo sac development assumed to develop a fruit with 12 seeds. Find out the no. of chromosomes present in megaspore mother cell, functional megaspores, egg cells, synergids, antipodals, zygote and PEN
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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
Which of the following group of plants are also called as naked seeded plants
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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
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 groups would you place a plant that produces spores and embryos but lacks seeds and vascular tissue?
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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
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 of the following statements is incorrect about gymnosperms?
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Biology>Diversity in the Living World>Plant Kingdom>Subdivision Gymnospermae
Which of the following is monocotyledon?
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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
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
Winged pollen grains are present in
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Biology>Diversity in the Living World>Plant Kingdom>Subdivision Gymnospermae
‘Ratoon Cropping’ is gaining popularity among which of the following crop cultivators?
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Biology>Diversity in the Living World>Plant Kingdom>Subdivision Gymnospermae
Which of the following have naked seed?
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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
Coralloid root is found in
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Biology>Diversity in the Living World>Plant Kingdom>Subdivision Gymnospermae
Trees of the genus Pinus are placed in higher groups compared to those of Marsilea genus because of the presence of one of the following features.