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Which one of the following is resistant to enzyme action?
Options
(a) Cork
(b) Wood fibre
(c) Pollen exine
(d) Leaf cuticle
Correct Answer:
Pollen exine
Explanation:
Pollen exine is resistant to enzyme action. The hard outer layer called the exine is made up of sporopollenin which is one of the most resistant organic material known. It can withstand high temperatures and strong acids and alkali. No enzymes that degrades sporopollenin is so far known.
Related Questions: - The term heterosis was first coined by
- The placenta is attached to the developing seeds near the
- In spermatogenisis, the acrosome of sperm is formed by
- Apical dominance is caused by
- The population of an insect species shows an explosive increase in numbers
Question Type: Memory
(964)
Difficulty Level: Easy
(1008)
Topics: Structural Organisation In Plants
(243)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The term heterosis was first coined by
- The placenta is attached to the developing seeds near the
- In spermatogenisis, the acrosome of sperm is formed by
- Apical dominance is caused by
- The population of an insect species shows an explosive increase in numbers
Question Type: Memory (964)
Difficulty Level: Easy (1008)
Topics: Structural Organisation In Plants (243)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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