First slide

Pre-fertilisation : Structures and Events

Question

One of the most resistant known biological material is.

Easy

A

lignin
B

hemicellulose
C

sporopollenin
D

lignocellulose

Solution

Sporopollenin is the tough resistant biopolymer that coats the outer walls of pollen grains spores and related micro-organisms. It is considered “the most resistant organic material known” and accounts for the morphology and microstructure and for geological preservation of polymorphs (an organic microfossils).

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