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Spore dissemination in some liverworts is aided by
Options
(a) indusium
(b) calyptra
(c) peristome teeth
(d) elaters
Correct Answer:
elaters
Explanation:
Elater is an elongated, spirally thickened, water-attracting cell in the capsule of a liverwort, derived from sporogenous tissue and assist in spore dispersal. In mosses calyptra is a structure initially present around sporophyte then later get break. It is developed from ventral wall after fertilization. It provides protective covering to the developing sporogonium. Peristome teeth are found in capsule of moss. These are present below operculum and are hygroscopic in nature.
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Question Type: Memory
(964)
Difficulty Level: Easy
(1008)
Topics: Plant and Animal Kingdom
(295)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The ovule curvature is more pronounced and embryo sac become horse shoe shaped
- Molecular basis of organ differentiation depends on the modulation in transcription by
- Rhizocalin is a additional hormonal substance which is secreted by
- The excretory structure of flatworm Taenia are
- Cell wall of plants is composed of
Question Type: Memory (964)
Difficulty Level: Easy (1008)
Topics: Plant and Animal Kingdom (295)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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