Question

Outer wall of pollen grain is made up of

Cellulose

Sporopollenin

Pectocellulose

Lignin

Solution

Sporopollenin

A pollen grain contains two-layered cell wall, the outer exine and inner intine. Sporopollenin is found in the exine of pollen grains, which is the most resistant biological material known, of microbial and chemical decomposition. Due to this, pollen grains are well preserved during fossilization. Intine of pollen grain is made up of pectocellulose.

Some More Questions From Sexual Reproduction in flowering Plants Chapter

The innermost layer of anther is tapetum whose function is :

In a bisexual flower when the gynaecium matures earlier than anther, it is called as :

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Sexual Reproduction In Flowering Plants

Outer wall of pollen grain is made up of

Cellulose

Sporopollenin

Pectocellulose

Lignin

Some More Questions From Sexual Reproduction in flowering Plants Chapter

The innermost layer of anther is tapetum whose function is :

In a bisexual flower when the gynaecium matures earlier than anther, it is called as :

Simultaneous meiotic division of microspore mother cells leads to :

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 :

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For Daily Free Study Material Join wiredfaculty

Sexual Reproduction In Flowering Plants

Outer wall of pollen grain is made up of Cellulose Sporopollenin Pectocellulose Lignin

Some More Questions From Sexual Reproduction in flowering Plants Chapter

The innermost layer of anther is tapetum whose function is :

In a bisexual flower when the gynaecium matures earlier than anther, it is called as :

Simultaneous meiotic division of microspore mother cells leads to :

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 :

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

Outer wall of pollen grain is made up of

Cellulose

Sporopollenin

Pectocellulose

Lignin