Sexual Reproduction In Flowering Plants

Question

In Pinus, male cone bears a large number of

ligules

anthers

micro- sporophylls

mega- sporophylls

Solution

micro- sporophylls

Micro-sporophylls or mega- sporophylls are the leaf like structures on which microsporangia and megasporangia are borne on the same plant of Pinus.

(a) Male cones (microstrobili)- are small

(b) Female cones (ovulate strobili)- are large

Each male cone consists of an elongated axis containing number of micro- sporophylls. Underside of same develops 2 microsporangia and gets filled with microspores (pollen grains).

Anther or microsporangium is the male reproductive structure of angiosperm.

Ligule, is a tongue- like membranous outgrowth, present on upper surface, near the base of the microphyllous leaf in pteridophytes.

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.

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Sexual Reproduction In Flowering Plants

In Pinus, male cone bears a large number of

ligules

anthers

micro- sporophylls

mega- sporophylls

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

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

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Location

For Daily Free Study Material Join wiredfaculty

Sexual Reproduction In Flowering Plants

In Pinus, male cone bears a large number of ligules anthers micro- sporophylls mega- sporophylls

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

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

In Pinus, male cone bears a large number of

ligules

anthers

micro- sporophylls

mega- sporophylls