Lifecycle Key Terms

Question 1

Antheridiophores, archegoniophores.

Violent elaters twitch to expell spores

Germinate into male or female.

Which lifecycle?

Answer 1

Hepaticophyta

Liverworts

Question 2

These are monoecious plants

The calyptra and operculum fall off.

Spores released through peristome

Spores germinate into protonema

Answer 2

Phylum Bryophyta

Mosses

Question 3

Sporophyte zygote does mitosis creating foot and rhizome. Rhizomes grow vertical stems which mature into sporophyte plants.

Answer 3

Phylum Psilophyta

Whisk ferns

Question 4

Adult sporophyte creates strobili. The strobili create sporophylls. Sporangia grow in the axillae and create spores via mitosis. The spores develop in gametophyte plants and develop antheridia and archegonia.

Answer 4

Phylum Lycophyta

Ground pines

Question 5

Adult sporophyte creates strobili. The strobili create sporophylls. Sporangia grow in the axillae of the sporophylls. Microsporangia create microspores and megasporangia create megaspores. The spores escape.

Answer 5

Spike mosses

Question 6

Sporgania create spores (with elators) via meiosis. Spores germinate and grow into adult gametophyte plants. Some gametophytes are male and some gametophytes are monoecious

Answer 6

Phylum Equisetophyta

Question 7

Adult sporophyte develops sori under fronds. Mature sporangia releases spores. Spores germinate into gametophyte prothallus. Prothalli create antheridia and archegoni

Answer 7

Phylum Polypodiophyta

Question 8

. Microsporocyctes create many microspores via meiosis and Megasporocytes create 4 megaspores via meiosis. Microspores create 4 cells and 2 air sacs, which are the immature male gametophyte

Answer 8

Phylum Pinophyta