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The two layers of teeth in the peristome of moss are-
  • a)
    Decorative part functioning like sepals and petals in a flower
  • b)
    Parts which help in the discharge of spores only when the capsule matures. After the operculum falls. They dry up and open out
  • c)
    Parts which help in the gradual dispersal of spores. The upper teeth are hygroscopic and open out only in dry weather. The lower ones check sudden dispersal
  • d)
    Part which help in the dispersal of spores. They are not hygroscopic and allow the discharge of spores by disintegration of capsule wall
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
The two layers of teeth in the peristome of moss are-a)Decorative part...
Ans .

Peristome (exposed) plays an important role in the dispersal of spores. The peristome teeth by their hygroscopic movements help in the discharge of the spores. The inner peristome simply functions as a sieve. The spores are liberated in the dry weather and are carried out by air.
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Most Upvoted Answer
The two layers of teeth in the peristome of moss are-a)Decorative part...
C is right answer Because peristome plays an important role in the dispersal of spores. The peristome teeth by their hygroscopic movements help in discharge of the spores. The inner peristome simply function sieve. The spores are liberated in the dry weather and are carried out by air.
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Community Answer
The two layers of teeth in the peristome of moss are-a)Decorative part...
Periostium teeth so called because they are 32 in no and 16 in lower side and 16 in upper side like hunans hence name given teeth...They are hygroscopic (absorb moisture) and help in bursting the capsule and releasing the spores...Given in NCERT "Mosses have elaborate mechanism of spore dispersal" actually they are talking about this periostium teeth mechanism..
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The two layers of teeth in the peristome of moss are-a)Decorative part functioning like sepals and petals in a flowerb)Parts which help in the discharge of spores only when the capsule matures. After the operculum falls. They dry up and open outc)Parts which help in the gradual dispersal of spores. The upper teeth are hygroscopic and open out only in dry weather. The lower ones check sudden dispersald)Part which help in the dispersal of spores. They are not hygroscopic and allow the discharge of spores by disintegration of capsule wallCorrect answer is option 'C'. Can you explain this answer?
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The two layers of teeth in the peristome of moss are-a)Decorative part functioning like sepals and petals in a flowerb)Parts which help in the discharge of spores only when the capsule matures. After the operculum falls. They dry up and open outc)Parts which help in the gradual dispersal of spores. The upper teeth are hygroscopic and open out only in dry weather. The lower ones check sudden dispersald)Part which help in the dispersal of spores. They are not hygroscopic and allow the discharge of spores by disintegration of capsule wallCorrect answer is option 'C'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about The two layers of teeth in the peristome of moss are-a)Decorative part functioning like sepals and petals in a flowerb)Parts which help in the discharge of spores only when the capsule matures. After the operculum falls. They dry up and open outc)Parts which help in the gradual dispersal of spores. The upper teeth are hygroscopic and open out only in dry weather. The lower ones check sudden dispersald)Part which help in the dispersal of spores. They are not hygroscopic and allow the discharge of spores by disintegration of capsule wallCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The two layers of teeth in the peristome of moss are-a)Decorative part functioning like sepals and petals in a flowerb)Parts which help in the discharge of spores only when the capsule matures. After the operculum falls. They dry up and open outc)Parts which help in the gradual dispersal of spores. The upper teeth are hygroscopic and open out only in dry weather. The lower ones check sudden dispersald)Part which help in the dispersal of spores. They are not hygroscopic and allow the discharge of spores by disintegration of capsule wallCorrect answer is option 'C'. Can you explain this answer?.
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