Tag: evs

Questions Related to evs

Gymnosperms are called naked seed plants because they lack

evs flowers and fruits phanerogams gymnosperms pictorial feature of plant kingdom

  1. Cotyledons

  2. Endosperm

  3. Tests

  4. Ovary wall

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Correct Option: D

Pollen chambers present in gymnosperms represents

evs flowers and fruits phanerogams gymnosperms pictorial feature of plant kingdom

  1. Microsporangium

  2. Pollen grain cell where sperms are formed

  3. Opening of megagametophyte for passage of pollen tube to egg

  4. Cavity in nucellus for resting pollen grains after pollination

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Correct Option: D

Consider the following statements regarding gymnosperms and choose the correct option.
(a) In gymnosperms the male and the female gametophytes have an independent existence
(b) The multicellular female gametophyte is retained within megasporangium
(c) The gymnosperms are heterosporous. Of these statements

evs flowers and fruits phanerogams gymnosperms pictorial feature of plant kingdom

  1. b and c are true but a is false

  2. a and b are true but c is false

  3. a and c are true but b is false

  4. b and c are false but a is true

  5. a and c are false but b is true

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Correct Option: A

Oldest gymnospermous tree is

evs flowers and fruits phanerogams gymnosperms pictorial feature of plant kingdom

  1. Taxodium mucronatum

  2. Pinus longavaea

  3. Zamia pygmia

  4. Sequoia sempervirens

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Correct Option: B

Lower vascular plants which produce seeds but not fruits belong to

evs flowers and fruits phanerogams gymnosperms pictorial feature of plant kingdom

  1. Bryophyta

  2. Pteridophyta

  3. Gymnosperms

  4. Euglenophyta

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Correct Option: C

Which is a character of gymnospermous wood?

evs flowers and fruits phanerogams gymnosperms pictorial feature of plant kingdom

  1. Porous

  2. Ring porous

  3. Diffused porous

  4. Non-porous

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Correct Option: D

Which of the following is a character of gymnospermous wood?

evs flowers and fruits phanerogams gymnosperms pictorial feature of plant kingdom

  1. Porous

  2. Diffused porous

  3. Ring porous

  4. Non-porous

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Correct Option: D

The tallest tree of gymnosperms is ________.

evs flowers and fruits phanerogams gymnosperms pictorial feature of plant kingdom

  1. Cycas

  2. Pinus

  3. Sequoia

  4. Cedrus

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Correct Option: C

Which is characteristic feature of gymnosperms?

evs flowers and fruits phanerogams gymnosperms pictorial feature of plant kingdom

  1. Gymnosperms are homosporous

  2. The female and male gametophytes do not have independent free living existence

  3. Sporophyte is dependent on gametophyte

  4. The ovules are enclosed by ovary

  5. Pollen grains are released by megasporangium

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Correct Option: B

The term gymnosperm was coined by

evs flowers and fruits phanerogams gymnosperms pictorial feature of plant kingdom

  1. Theophrastus

  2. Linnaeus

  3. De Jussieu

  4. Endlicher

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Correct Option: A