Tag: plant kingdom

Questions Related to plant kingdom

Sporopollenin occurs in.

microsporophyll vs megasporophyll plant kingdom biology

  1. Female gametophyte

  2. Male gametophyte

  3. Vegetative cells of pollen grain

  4. Exine of pollen wall

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Correct Option: D

In angiosperms the functional megaspore in the linear tetrad is generally.

microsporophyll vs megasporophyll plant kingdom biology

  1. Micropylar

  2. Second from micropylar

  3. Third from micropylar

  4. Fourth from micropylar

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Correct Option: D

Egg of female gametophyte is accompanied by.

microsporophyll vs megasporophyll plant kingdom biology

  1. Antipodal cell

  2. Synergids

  3. Definite nucleus

  4. Tube nucleus

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Correct Option: B

Fore-runner of male gamete is?

microsporophyll vs megasporophyll plant kingdom biology

  1. Megasporangium

  2. Antipodal cell

  3. Microspore mother cell

  4. Embryo sac

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Correct Option: C

A diploid male angiospermic plant is crossed with tetraploid female plant. Endosperm of seed will be.

microsporophyll vs megasporophyll plant kingdom biology

  1. Haploid

  2. Triploid

  3. Tetraploid

  4. Pentaploid

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Correct Option: B

What is not a post fertilization event?

microsporophyll vs megasporophyll plant kingdom biology

  1. Gametogenesis

  2. Embryogenesis

  3. Fruit formation

  4. Seed formation

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Correct Option: A

The filiform apparatus is present in ________.

microsporophyll vs megasporophyll plant kingdom biology

  1. Synergids

  2. Egg cell

  3. Antipodals

  4. Secondary nucleus

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Correct Option: A
Explanation:

The synergids have special cellular thickening at the micropylar tip called filiform apparatus, which plays an important role in guiding the pollen tube into the synergid.

Assertion : Most evolutionary trees place information about the pattern of relationship among organisms on the vertical axis and information about time on the horizontal axis.

Reason : An evolutionary tree depicts the pattern of relationships among parents and their offsprings.

microsporophyll vs megasporophyll plant kingdom biology

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion

  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion

  3. If the assertion is true but the reason is false

  4. If both the assertion and reason are false

  5. If the assertion is false but reason is true

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Correct Option: D
Explanation:

An evolutionary tree depicts the pattern of relationships among major groups of organisms. Most evolutionary trees place information about the pattern of relationships among organisms on the horizontal axis and information about time on the vertical axis.

What part is developed into a seed?

types of endosperms plant kingdom biology

  1. Endosperm

  2. Cotyledons

  3. Synergids

  4. Hypocity

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Correct Option: A

The dry (mass excluding water) of a seed in the process of germination

types of endosperms plant kingdom biology

  1. Increase over time until the first leaves appear

  2. Decreases over time until the first leaves appear

  3. Stays constant until the first leaves appear

  4. First Increases and then decreases until the first leaves appear

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Correct Option: A
Explanation:

During the germination process, there is a permanent increase of cell size and dry mass of the seed and water uptake may differ from day to day, plant take more water on a wet day and less on a dry day.

So the correct option is 'Increase over time until the first leaves appear.'