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 Reproduction in Flowering Plants

Online Biology Class 

  • Following is the list of topics that are covered during online biology classes for NEET preparation.

  • After completion of all the topics of the chapter, MCQs based on NEET Pattern questions are discussed.

  • Doubts during the class are also cleared. You can also post your doubts and we will promptly answer it.

 

24.1 Flower

  • structure of the flower​

  • parts of a typical flower

  1. calyx​

  2. corolla –perianth​

  3. parianth​

  4. androecium​

  5. gynoecium or pistil​

  6. The stamen(=microsporophyll)​

    • pre-pollination development​

    • post-pollination development​

  7. The carpel(=megasporophyll) and the ovule(=megasporangium)​

  8. structure of the ovule

    • funiculus

    • hilum,

    • raphe,

    • nucellus,

    • embryo sac,

    • integuments,

    • micropyle,

    • halaza

  9. types of ovules

    • orthotropous

    • anatropous

    • hemitropous

    • campylotropous

    • amphitropous

    • circinotropous

      • megasporogenesis and development of female gametophyte(megagametogenesis)

      • structure of monosporic  Polygonum type embryo sac

24.2 Pollination

  • self-pollination

  • autogamy

  • cleistogamy

  • homogamy

  • bud pollination

  • geitonogamy

  • advantages of self-pollination

  • disadvantages of self-pollination

  • cross pollination (xenogamy, allogamy)

  • anemophily

  • hydrophily

  • zoophily

  • entomophily

  • coevolution of flower and its pollinator species

    • pollination in salvia

    • pollination in yucca

    • pollination in orchid-ophrys

    • pollination in ficus

  • ornithophily

  • chiropterophily

  • malacophily

24.3 outbreeding devices or contrivances to ensure cross pollination

  • dicliny

  • dichogamy

  • prepotency

  • self fertility

  • heterostyly

  • herkogamy

  • advantages and disadvantages of cross pollination

24.4 Pollen-pistil interaction

  • Self incompatability

  • Emasculation and bagging

24.5 Fertilization

  • growth of the pollen tube

  • entry of the pollen tube into the ovule

  • double fertilization

24.6 Post fertilization changes

  • development of endosperms

  • nuclear endosperm

  • cellular endosperm

  • helobial endosperm

  • fate of endosperm

  • development of embryo(embryogeny)

  • in dicotyledons, structure of dicot embryo

  • in monocotyledons, structure of monocot embryo

  • development of seed

  • development of fruits

  • role of pollination in fruit development

  • role of seeds in fruit development

24.7 development in parthenocarpic

  • ripening of fruits

  • significance in seed and fruit formation

  • bean seed, castor seed, maize seed, onion seed

24.8 viability of seed

  • importance of seeds

  • dependable methods

  • perennation

  • dispersal

  • reserve food

  • variations

  • storage

  • agriculture

  • significance of fruit formation

  • protection

  • dispersal

  • fruit to animals

  • nutrition to germinating seeds

24.9 parthenocarpy

  • sexual incompatibility

  • morphological self-incompatibility

  • physiological self incompatibility

    • gametophytic self incompatibility

    • sporophytic self incompatibility

  • importance

24.10 Apomixes and polyembryony

  • Apomixes- agamospermy and vegetative propagation

  • Agamospermy

  • Adventive embryony

  • Recurrent agamospermy

  • Parthenogenesis

  • Apospory and apogamy

  • importance

MCQs Discussion

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