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Sexual Reproduction In Flowering Plants

Question

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Which of the following are the important floral rewards to the animal pollinators?

Colour and large size flower

Nectar and pollen grains

Floral fragrance and calcium crystals

Protein pellicle and stigmatic exudates

Solution

B.

Nectar and pollen grains

Nectar and pollen grains are important floral rewards to the animal pollinators such as moths, butterflies, wasps, bees, birds, etc. They visit the flowers for nectar, edible pollen grains and shelter and nursing (as in fig and Yucca). Besides, edible floral parts and young seeds are also usual rewards for pollinatiors. In turn, while visiting flowers, they come in contact and adhere pollen grain and bring about pollination, which they visit another flower.

Some More Questions From Sexual Reproduction in flowering Plants Chapter

The fertilization occurs in the :

The female gametophyte of a typical dicot at the time of fertilization is:

Development of embryo from any cell of nucellus is called :

Parthenocarpic fruit is :

The entry of pollen tube into embryo sac through the integuments is termed as :

512 microspores will be formed following meiosis of how many microspore mother cells.

Pollination by water occurs in :

In ................... flowers, the thalamus grows upwards completely enclosing the ovary, and the stamens, petals and sepals are borne above the ovary.

In Calotropis, all the microspores of anther lobe remain united to form

Albuminous seeds store reserve food materials in ....................

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