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Plant Kingdom · Question 48

NEET 2013MCQEasy📈 Topic in 38% papers+4−1
1

Select the wrong statement

  1. In Oomycetes, female gamete is smaller and motile, while male gamete is larger and non-motile.
  2. Chlamydomonas exhibits both isogamy and anisogamy and Fucus shows oogamy.
  3. Isogametes are similar in structure, function and behaviour.
  4. Anisogametes differ either in structure, function or behaviour.

Answer

(1) In Oomycetes, female gamete is smaller and motile, while male gamete is larger and non-motile.

Solution

As per NCERT, fusion of a large, non-motile (static) female gamete with a smaller, motile male gamete is termed oogamous.

⇒ Oomycetes (e.g. Albugo) are oogamous: the female gamete (egg in the oogonium) is larger and non-motile, while the male gamete is smaller.

∴ Statement (1) reverses the sizes and motility — it is wrong.

∵ Chlamydomonas shows isogamy and anisogamy, Fucus shows oogamy, isogametes are similar and anisogametes are dissimilar, statements (2), (3) and (4) are correct.

Answer: (1)

NEET 2013

Keep practising — Plant Kingdom

2

Isogamous condition with non-flagellated gametes is found in

  1. Volvox
  2. Fucus
  3. Chlamydomonas
  4. Spirogyra.
NEET 2013
3

Monoecious plant of Chara shows occurrence of

  1. upper antheridium and lower oogonium on the same plant
  2. upper oogonium and lower antheridium on the same plant
  3. antheridiophore and archegoniophore on the same plant
  4. stamen and carpel on the same plant.
NEET 2013
4

Read the following statements (A – E) and answer the question which follows them. How many of the above statements are correct?

  1. Three
  2. Four
  3. One
  4. Two
NEET 2013
5

Besides paddy fields, cyanobacteria are also found inside vegetative part of :

  1. Cycas
  2. Psilotum
  3. Pinus
  4. Equisetum
NEET 2013
6

Syngamy can occur outside the body of the organism in

  1. mosses
  2. algae
  3. ferns
  4. Fungi
NEET 2013 (Karnataka)
7

What is common in all the three, Funaria, Dryopteris and Ginkgo?

  1. Presence of archegonia
  2. Well developed vascular tissues
  3. Independent gametophyte
  4. Independent sporophyte
NEET 2013 (Karnataka)
8

Which one of the following is wrongly matched?

  1. Spirogyra - Motile gametes
  2. Sargassum - Chlorophyll
  3. Basidiomycetes - Puffballs
  4. Nostoc - Water blooms
NEET 2013 (Karnataka)
9

The plant body is thalloid in

  1. Sphagnum
  2. Salvinia
  3. Marchantia
  4. Funaria.
NEET 2013 (Karnataka)
10

Which one of the following pairs is wrongly matched?

  1. Ginkgo – Archegonia
  2. Salvinia – Prothallus
  3. Viroids – RNA
  4. Mustard – Synergids
AIPMT 2012 (Mains)
11

Read the following five statements (A – E) and answer as asked next to them. How many of the above statements are correct?

  1. Two
  2. Three
  3. Four
  4. One
AIPMT 2012 (Mains)

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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
Other chaptersBiomolecules (Biology)