Medium
The most resistant organic material known which makes up the outermost layer of pollen wall is
- APectin
- BCellulose
- CSporopollenin
- DLignin
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Similar Questions
Which of the following layers does not help in protection and dehiscence of the anther?
Medium
View SolutionMatch the characteristics of anther wall layers given in Column-$I$ with their names given in Column-$II$.Column-$I$ Column-$II$ $i$. Nutritive layer $a$. Epidermis $ii$. Layer with fibrous thickness $b$. Middle layers $iii$. Protective layer $c$. Tapetum $iv$. Layer that disintegrates in mature anther $d$. Endothecium
Choose the correct option given below.
| Column-$I$ | Column-$II$ |
| $i$. Nutritive layer | $a$. Epidermis |
| $ii$. Layer with fibrous thickness | $b$. Middle layers |
| $iii$. Protective layer | $c$. Tapetum |
| $iv$. Layer that disintegrates in mature anther | $d$. Endothecium |
Which layer of the microsporangium helps in protection and dehiscence?
Medium
View SolutionDescribe the external structure of a pollen grain.
Easy
View SolutionIn angiosperms,the four microspores of a tetrad are covered by a layer which is made up of:
Easy
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