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An organic substance that can withstand environmental extremes and cannot be degraded by any enzyme is:
Options
(a) Cuticle
(b) Sporopollenin
(c) Lignin
(d) Cellulose
Correct Answer:
Sporopollenin
Explanation:
Sporopollenin is fatty substance present in pollen wall and provides resistance against extreme condition like high temperature, acid, bases.
Related Questions: - Which one of the following statements is false in respect of viability of mammalian sperm?
- Cell membrane is to ions
- The similarity of bone structure in the forelimbs of many vertebrates is an
- Last electron acceptor in respiration is
- A large proportion of oxygen is left unused in the human blood
Question Type: Memory
(964)
Difficulty Level: Easy
(1008)
Topics: Reproduction In Plants
(48)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Which one of the following statements is false in respect of viability of mammalian sperm?
- Cell membrane is to ions
- The similarity of bone structure in the forelimbs of many vertebrates is an
- Last electron acceptor in respiration is
- A large proportion of oxygen is left unused in the human blood
Question Type: Memory (964)
Difficulty Level: Easy (1008)
Topics: Reproduction In Plants (48)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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