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Question
Which of the following is not a part of moss capsule?
Which of the following is not a part of moss capsule?
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Solution
The correct option is D Protonema
The sporophytes of mosses, like those of the liverworts, consist of a foot, seta and capsule and remain permanently attached to the gametophytes. At the tip of the capsule is a lid (operculum) which, prior to spore dissemination, falls away exposing the so-called peristome teeth, a set of structures, often delicate and thread-like in appearance, that form a ring around the mouth (rim) of the capsule. The peristome teeth are perhaps the most characteristic feature of the mosses; usually composed of cell wall remnants, they respond to changes in the humidity of the atmosphere. When a moss first grows from the spore, it grows as a protonema, which develops into a leafy gametophore.
The sporophytes of mosses, like those of the liverworts, consist of a foot, seta and capsule and remain permanently attached to the gametophytes. At the tip of the capsule is a lid (operculum) which, prior to spore dissemination, falls away exposing the so-called peristome teeth, a set of structures, often delicate and thread-like in appearance, that form a ring around the mouth (rim) of the capsule. The peristome teeth are perhaps the most characteristic feature of the mosses; usually composed of cell wall remnants, they respond to changes in the humidity of the atmosphere. When a moss first grows from the spore, it grows as a protonema, which develops into a leafy gametophore.
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