Chapter Questions
Land plants differ from photosynthetic protists in that only the plantsa. are photosynthetic.b. are multicellular.c. possess chloroplasts.d. have multicellular embryos protected by the parent.e. are eukaryotic.
Which statement about alternation of generations in landplants is not true?a. The gametophyte and sporophyte differ in appearance.b. Meiosis occurs in sporangia.c. Gametes are always produced by meiosis.d. The zygote is the first cell of the sporophyte generation.e. The gametophyte and sporophyte differ in chromosomenumber.
Which statement is not evidence for the origin of land plants from the green algae?a. Some green algae have multicellular sporophytes and multicellular gametophytes.b. Both plants and green algae have cellulose in their cell walls.c. The two groups have the same photosynthetic pigments.d. Both plants and green algae produce starch as their principal storage carbohydrate.e. All green algae produce large, stationary eggs.
Liverworts, mosses, and hornwortsa. lack a sporophyte generation.b. grow in dense masses, allowing capillary movement of water.c. possess xylem and phloem.d. possess true leaves.e. possess true roots.
Which statement is not true of the mosses?a. The sporophyte is dependent on the gametophyte.b. Sperm are produced in archegonia. c. There are more species of mosses than of liverworts and hornworts combined.d. The sporophyte grows by apical cell division.e. Mosses are probably sister to the vascular plants plus hornworts.
Megaphyllsa. probably evolved only once.b. are found in all the vascular plant groups.c. probably arose from sterile sporangia.d. are the characteristic leaves of club mosses.e. are the characteristic leaves of horsetails and ferns.
The rhyniophytesa. lacked tracheids.b. possessed true roots.c. possessed sporangia at the tips of stems.d. possessed leaves.e. lacked branching stems
Club mosses and horsetailsa. have larger gametophytes than sporophytes.b. possess small leaves.c. are represented today primarily by trees.d. have never been a dominant part of the vegetation.e. produce fruits.
Which statement about ferns is not true?a. The sporophyte is larger than the gametophyte.b. Most are heterosporous.c. The young sporophyte can grow independently of the gametophyte.d. The leaf is a megaphyll.e. The gametophytes produce archegonia and antheridia.
The leptosporangiate fernsa. are not a monophyletic group.b. have sporangia with walls more than one cell thick.c. constitute a minority of all ferns.d. are monilophytes.e. produce seeds.