Sexual Reproduction in Flowering Plants · NEET Preparation Botany
The hard outer layer of a pollen grain, known as the exine, is composed of a remarkably resistant organic material called:
Practice question from Sexual Reproduction in Flowering Plants (NEET Preparation Botany), with the correct answer and a step-by-step solution.
easy · MCQ · Q-DE8B3D
The hard outer layer of a pollen grain, known as the exine, is composed of a remarkably resistant organic material called:
- A.SporopolleninCorrect answer
- B.Pectin
- C.Callose
- D.Lignin
Solution
Exine is made up of sporopollenin, which is one of the most resistant organic materials known. It can withstand high temperatures, strong acids, and alkali, and no enzyme that degrades it is known so far.
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