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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: - Vertical distribution of different species occupying different levels in a biotic
- The first movements of the foetus and appearance of hair on its head are usually
- In pteridophytes, spores germinate to give rise to inconpicuous
- Among the human ancestors the brain size was more that 1000 cc in
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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
- Vertical distribution of different species occupying different levels in a biotic
- The first movements of the foetus and appearance of hair on its head are usually
- In pteridophytes, spores germinate to give rise to inconpicuous
- Among the human ancestors the brain size was more that 1000 cc in
- Identify the protein having oxygen storing capacity
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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