DUeS trom the capsule. In wet weather, these teeth bend inward and prevent the r

Question

DUeS trom the capsule. In wet weather, these teeth bend inward and prevent the release of the spores. In dry weather, these teeth bend outward, thus aiding in the distribution of spores by the wind. c) Crush t he capsule in a drop of water on a slide. Examine the contents under the microscope. You may see numerous spores. These are the first cells of the gametophyte generation. Answer the questions about mosses: In which generation, sporophyte (2N) or gametophyte (N) do the following belong. a) Spore: b) Calyptra: c) Egg:_ d) Protonema e) Archegonium_ f Paraphysis g) Zygote: h) Capsule: i) Seta 4-19

Explanation / Answer

a. Spore = Sporophyte produces haploid spores in bryophytes.

b. Calyptra = Gametophytic haploid structure

c. Egg = Haploid gametophytic cell

d. Protonema = Haploid gametophytic tissue

e. Archegonium = Haploid gametophytic tissue

f. Paraphysis = Haploid gametophytic hair like structures present in between archegonia.

g. Zygote = It is diploid.The first cell of sporophytic stage.

h. Capsule = It is produced by diploid sporophyte.

i. Seta = Diploid sporophytic structure.

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