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Sexual Reproduction in Flowering Plants

NEET (UG) 2024MCQMedium📈 Topic in 62% papers+4−1
Ques. 1NEET (UG) 2024

Identify the set of correct statements: Choose the correct answer from the options given below.

  1. C, D and E only
  2. A, B, C and D only
  3. A, C, D and E only
  4. B, C, D and E only

Answer

(4) B, C, D and E only

Solution

A. Incorrect: water-pollinated flowers such as Vallisneria are not very colourful and do not produce nectar.

B. Correct: water lily is a water plant, but its emergent flowers are pollinated by insects or wind, not by water.

C. Correct: in most water-pollinated species, pollen grains are protected from wetting by a mucilaginous covering.

D. Correct: pollen grains of some hydrophytes (e.g. sea grasses) are long and ribbon like.

E. Correct: in some hydrophytes (sea grasses) the pollen grains are carried passively inside water.

So B, C, D and E are correct.

Answer: (4)

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Ques. 2NEET (UG) 2024

Identify the correct description about the given figure : [Figure]

  1. Wind pollinated plant inflorescence showing flowers with well exposed stamens.
  2. Water pollinated flowers showing stamens with mucilaginous covering.
  3. Cleistogamous flowers showing autogamy.
  4. Compact inflorescence showing complete autogamy
Ques. 3RE-NEET (UG) 2024

Which part of the ovule stores reserve food materials?

  1. Nucellus
  2. Integument
  3. Placenta
  4. Funicle
Ques. 4RE-NEET (UG) 2024

Pollen grains remain preserved as fossils due to the presence of :

  1. Epidermal layer
  2. Tapetum
  3. Exine layer
  4. Intine layer
Ques. 5RE-NEET (UG) 2024

The part marked as ‘x’ in the given figure is [Figure]

  1. Endosperm
  2. Thalamus
  3. Endocarp
  4. Mesocarp
Ques. 6NEET (UG) 2023

What is the function of tassels in the corn cob?

  1. To trap pollen grains
  2. To disperse pollen grains
  3. To protect seeds
  4. To attract insects
Ques. 7NEET (UG) 2023

Large, colourful, fragrant flowers with nectar are seen in

  1. Bird pollinated plants
  2. Bat pollinated plants
  3. Wind pollinated plants
  4. Insect pollinated plants
Ques. 8NEET (UG) 2023

In angiosperm, the haploid, diploid and triploid structures of a fertilized embryo sac sequentially are :

  1. Antipodals, synergids, and primary endosperm nucleus
  2. Synergids, Zygote and Primary endosperm nucleus
  3. Synergids, antipodals and Polar nuclei
  4. Synergids, Primary endosperm nucleus and zygote
Ques. 9NEET (UG) 2022

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

  1. Both Statement I and Statement II are correct
  2. Both Statement I and Statement II are incorrect
  3. Statement I is correct but Statement II is incorrect
  4. Statement I is incorrect but Statement II is correct
Ques. 10NEET (UG) 2022

Identify the incorrect statement related to Pollination:

  1. Pollination by water is quite rare in flowering plants
  2. Pollination by wind is more common amongst abiotic pollination
  3. Flowers produce foul odours to attract flies and beetles to get pollinated
  4. Moths and butterflies are the most dominant pollinating agents among insects
Ques. 11NEET (UG) 2022

Which part of the fruit, labelled in the given figure makes it a false fruit? [Figure]

  1. A Mesocarp
  2. B Endocarp
  3. C Thalamus
  4. D Seed

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