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Plant Kingdom · Question 32

NEET 2017MCQMedium📈 Topic in 62% papers+4−1
1

Select the mismatch

  1. Cycas – Dioecious
  2. Salvinia – Heterosporous
  3. Equisetum – Homosporous
  4. Pinus – Dioecious

Answer

(4) Pinus – Dioecious

Solution

As per NCERT, in Cycas the male cones and megasporophylls are borne on different trees ⇒ dioecious (correct match).

Salvinia and Selaginella produce two kinds of spores, macro- and microspores ⇒ heterosporous (correct match).

Majority of pteridophytes, including Equisetum, produce similar kinds of spores ⇒ homosporous (correct match).

In Pinus the male and female cones are borne on the same tree ⇒ monoecious, not dioecious.

∴ Pinus – Dioecious is the mismatch.

Answer: (4)

NEET 2017

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2

Zygotic meiosis is characteristic of

  1. Fucus
  2. Funaria
  3. Chlamydomonas
  4. Marchantia
NEET 2017
3

Life cycles of Ectocarpus and Fucus respectively are

  1. diplontic, haplodiplontic
  2. haplodiplontic, diplontic
  3. haplodiplontic, haplontic
  4. haplontic, diplontic
NEET 2017
4

Select the correct statement

  1. Sequoia is one of the tallest trees.
  2. The leaves of gymnosperms are not well adapted to extremes of climate.
  3. Gymnosperms are both homosporous and heterosporous.
  4. Salvinia, Ginkgo and Pinus all are gymnosperms.
NEET 2016 (Phase 1)
5

In bryophytes and pteridophytes, transport of male gametes requires

  1. birds
  2. water
  3. wind
  4. insects.
NEET 2016 (Phase 1)
6

Conifers are adapted to tolerate extreme environmental conditions because of

  1. broad hardy leaves
  2. superficial stomata
  3. thick cuticle
  4. presence of vessels.
NEET 2016 (Phase 2)
7

Which one of the following statements is wrong?

  1. Algae increase the level of dissolved oxygen in the immediate environment.
  2. Algin is obtained from red algae, and carrageenan from brown algae.
  3. Agar-agar is obtained from Gelidium and Gracilaria.
  4. Laminaria and Sargassum are used as food.
NEET 2016 (Phase 2)
8

Which one of the following statements is wrong?

  1. Chlorella and Spirulina are used as space food.
  2. Mannitol is stored food in Rhodophyceae.
  3. Algin and carrageenan are products of algae.
  4. Agar-agar is obtained from Gelidium and Gracilaria.
AIPMT 2015 (Cancelled)
9

In which of the following, gametophyte is not independent free living?

  1. Pteris
  2. Pinus
  3. Funaria
  4. Marchantia
AIPMT 2015 (Cancelled)
10

Read the following five statements (A to E) and select the option with all correct statements.

  1. A, D and E
  2. B, C and E
  3. A, C and D
  4. B, C and D
AIPMT 2015 (Cancelled)
11

Male gametes are flagellated in

  1. Ectocarpus
  2. Spirogyra
  3. Polysiphonia
  4. Anabaena.
AIPMT 2015 (Cancelled)

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All NEET Botany chapters
Class 11The Living WorldBiological ClassificationPlant KingdomMorphology of Flowering PlantsAnatomy of Flowering PlantsCell: The Unit of LifeCell Cycle and Cell DivisionTransport in PlantsMineral NutritionPhotosynthesis in Higher PlantsRespiration in PlantsPlant Growth and Development
Class 12Reproduction in OrganismsSexual Reproduction in Flowering PlantsPrinciples of Inheritance and VariationMolecular Basis of InheritanceStrategies for Enhancement in Food ProductionMicrobes in Human WelfareOrganisms and PopulationsEcosystemBiodiversity and ConservationEnvironmental Issues
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