+91-8076753736 support@wiredfaculty.com
logo
logo

Sponsor Area

Sexual Reproduction In Flowering Plants

Question
CBSEENBI12002959
Wired Faculty App

When pollen tube enters through micropyle, the process is called

  • Porogamy

  • Chalazogamy

  • Mesogarny

  • Apogamy

Solution

A.

Porogamy

The pollen tube may enter the ovule by following one of three routes given below:
(a) Porogamy Pollen tube enters the ovule through micropyle, e.g., most angiosperms.
(b) Mesogamy Pollen tube enters the ovule through integuments (e.g., Cucurbita) or through funiculus (e.g., Pistacia).
(c) Chalazogamy Pollen tube enters the ovule through chalazal tissues, e.g., Casuarina, Beta vulgaris, Juglens regia, etc.

Some More Questions From Sexual Reproduction in flowering Plants Chapter

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 ....................

Transfer of pollen grains from the anther to the stigma of another flower of same plant is called..............................

The...................direct the growth of pollen tube towards egg apparatus by secreting some chemical substances.

A kind of reproduction in which the new individuals are formed without involvement of meiosis and syngamy.

A kind of self-pollination in which the pollens from the anthers of one flower are transferred to the stigma of another flower borne on the same plant.

Give the term for cross-pollination by  wind.

The nutritive layer of anther wall which provides nourishment to the developing microspores.

Mock Test Series

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation