Tag: flowers and fruits

Questions Related to flowers and fruits

The gymnospermic endosperm differs from an angiospermic endosperm because in gymnosperm it is

evs flowers and fruits phanerogams gymnosperms pictorial feature of plant kingdom

  1. Haploid and developed from female gametophyte

  2. Diploid and developed from female gametophyte

  3. Triploid and developed after fertilization

  4. Triploid and developed before fertilization

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Correct Option: A

Ginkgo is

evs flowers and fruits phanerogams gymnosperms pictorial feature of plant kingdom

  1. Evergreen

  2. Deciduous

  3. Phylloclade

  4. Semievergreen

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Correct Option: B
Explanation:

Gingko biloba, commonly called as gingko, is an endangered genus belonging to division Gymnosperm. It is also a living fossil, as it is the sole survivor of a group of trees that belonged to an era of dinosaurs. The trees rich up to 40 meters in height. It is a deciduous conifer because it sheds its leaves annually. It is found in deciduous forests and valleys. 

So, the correct answer is 'Deciduous'.

In a gymnosperm, the endosperm

evs flowers and fruits phanerogams gymnosperms pictorial feature of plant kingdom

  1. Develops without fertilization

  2. Forms after fertilization but does not require triple fusion

  3. Is diploid

  4. Is short-lived

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Correct Option: A

Gymnosperms do not have

evs flowers and fruits phanerogams gymnosperms pictorial feature of plant kingdom

  1. Xylem vessels and sieve tubes

  2. Tracheids and sieve tubes

  3. Vessels, sieve tubes and companion cells

  4. Tracheids and companion cells

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Correct Option: C

External water is not required for fertilization in

evs flowers and fruits phanerogams gymnosperms pictorial feature of plant kingdom

  1. Fern/Selaginella

  2. Moss/Riccia

  3. Ulothrix

  4. Gymnosperms/Maize

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Correct Option: D

A plant having seeds but lacking flowers and fruits belongs to

evs flowers and fruits phanerogams gymnosperms pictorial feature of plant kingdom

  1. Pteridophytes

  2. Mosses

  3. Ferns

  4. Gymnosperms

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Correct Option: D

Gymnosperms do not have

evs flowers and fruits phanerogams gymnosperms pictorial feature of plant kingdom

  1. Antheridium

  2. Ovule

  3. Archegonium

  4. Egg

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Correct Option: A

Gymnosperms are characterised by

evs flowers and fruits phanerogams gymnosperms pictorial feature of plant kingdom

  1. Multiflagellate sperms

  2. Naked seeds

  3. Winged seeds

  4. Seeds inside fruits

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Correct Option: B

Naked seeds occur in

evs flowers and fruits phanerogams gymnosperms pictorial feature of plant kingdom

  1. Pteris/Pteridophytes

  2. Cycas/Gymnosperms

  3. Funaria/Bryophytes

  4. Maize/Angiosperms

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Correct Option: B

In gymnosperms, the ovules are

evs flowers and fruits phanerogams gymnosperms pictorial feature of plant kingdom

  1. Naked

  2. Covered

  3. With two coats

  4. All the above

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Correct Option: A