PYQSide ExamsMy practice

Plant Kingdom · Question 83

AIPMT 2007MCQMedium📈 Topic in 12% papers+4−1
1

Flagellated male gametes are present in all the three of which one of the following sets?

  1. Zygnema, Saprolegnia and Hydrilla
  2. Fucus, Marsilea and Calotropis
  3. Riccia, Dryopteris and Cycas
  4. Anthoceros, Funaria and Spirogyra

Answer

(3) Riccia, Dryopteris and Cycas

Solution

As per NCERT, bryophytes and pteridophytes have flagellated (motile) antherozoids and need water for fertilisation; among gymnosperms, Cycas also has large multiflagellate (motile) male gametes.

⇒ Riccia (liverwort), Dryopteris (fern) and Cycas all have flagellated male gametes ⇒ (3) is correct.

∵ Zygnema and Spirogyra have non-flagellated gametes (conjugation), Saprolegnia has no free male gametes, and the angiosperms Hydrilla and Calotropis have non-motile male gametes carried by a pollen tube ⇒ (1), (2), (4) are wrong.

Answer: (3)

AIPMT 2007

Keep practising — Plant Kingdom

2

If you are asked to classify the various algae into distinct groups, which of the following characters you should choose?

  1. Nature of stored food materials in the cell
  2. Structural organization of thallus
  3. Chemical composition of the cell wall
  4. Types of pigments present in the cell
AIPMT 2007
3

In the prothallus of a vascular cryptogam, the antherozoids and eggs mature at different times. As a result

  1. there is high degree of sterility
  2. one can conclude that the plant is apomictic
  3. self fertilization is prevented
  4. there is no change in success rate of fertilization
AIPMT 2007
4

Peat moss is used as a packing material for sending flowers and live plants to distant places because

  1. it serves as a disinfectant
  2. it is easily available
  3. it is hygroscopic
  4. it reduces transpiration
AIPMT 2006
5

Conifers differ from grasses in the

  1. formation of endosperm before fertilization
  2. production of seeds from ovules
  3. lack of xylem tracheids
  4. absence of pollen tubes
AIPMT 2006
6

In a moss, the sporophyte

  1. manufactures food for itself, as well as for the gametophyte
  2. is partially parasitic on the gametophyte
  3. produces gametes that give rise to the gametophyte
  4. arises from a spore produced from the gametophyte
AIPMT 2006
7

Ectophloic siphonostele is found in

  1. Osmunda and Equisetum
  2. Marsilea and Botrychium
  3. Adiantum and Cucurbitaceae
  4. Dicksonia and Maiden hair fern.
AIPMT 2005
8

Top-shaped multiciliate male gametes and the mature seed which bears only one embryo with two cotyledons, are characterised features of

  1. cycads
  2. conifers
  3. polypetalous angiosperms
  4. gamopetalous angiosperms
AIPMT 2005
9

Phenetic classification of organisms is based on

  1. observable characteristics of existing organisms
  2. the ancestral lineage of existing organisms
  3. dendrogram based on DNA characteristics
  4. sexual characteristics
AIPMT 2004
10

Angiosperms have dominated the land flora primarily because of their

  1. power of adaptability in diverse habitat
  2. property of producing large number of seeds
  3. nature of self pollination
  4. domestication by man
AIPMT 2004
11

Which one of the following is living fossil ?

  1. Cycas
  2. Moss
  3. Spirogyra
  4. Saccharomyces
AIPMT 2004

All Plant Kingdom PYQs →

PDFDownload Plant Kingdom PYQs as PDF Free, with answer key and a QR code to every solution — print it or study offline⬇
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
Other chaptersBiomolecules (Biology)