front 1 Which of the following statements about algae and plants is true? | back 1 Plants have a waxy, waterproof cuticle, and algae do not. |
front 2 Which of the following homologies are shared by land plants and their closest living algal relatives? | back 2 -the formation of a group of microtubules between daughter nuclei during cell division
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front 3 In moving to land, plants had to overcome which of the following challenges? | back 3 desiccation |
front 4 Alternation of generations _____. | back 4 is distinguished by haploid and diploid stages that are both multicellular |
front 5 Plants undergo alternation of generations in which _____. | back 5 the sporophyte generation alternates with the gametophyte generation |
front 6 Gametangia are _________. | back 6 Single-celled algae, multicellular in most plants |
front 7 In charophytes, _____ protect(s) zygotes from desiccation. | back 7 sporopollenin |
front 8 Which is a key difference between alternation of generations in plants and sexual reproduction in nonplant organisms? | back 8 In plants, the haploid and diploid stages are both multicellular. |
front 9 The development of the _____ prevents plants from drying out and protects them from microbes. | back 9 cuticle |
front 10 Which example below is a clade of nonvascular plants? | back 10 bryophytes |
front 11 Which term is most nearly synonymous with land plants? | back 11 embryophytes |
front 12 A major division in plant systematics is based on whether a particular species has _____. | back 12 vascular tissue |
front 13 The gametophyte stage of the plant life cycle is most conspicuous in _____. | back 13 mosses |
front 14 When you see a green, "leafy" moss, you are looking at the _____. | back 14 gametophyte generation |
front 15 Rhizoids _____. | back 15 anchor the gametophytes of bryophytes |
front 16 Which of the following produces eggs and sperm? | back 16 moss gametophytes |
front 17 Fertilization in moss occurs when sperm swim from a(n) _____ and down the neck of a(n) _____. | back 17 antheridium ... archegonium |
front 18 The gametophyte generation of a moss _____. | back 18 is haploid |
front 19 How are gametes produced by bryophytes? | back 19 by mitosis of gametophyte cells |
front 20 In mosses, haploid _____ directly produce buds that grow into gametophores. | back 20 protonemata |
front 21 Which structure of a bryophyte sporophyte is specialized for gradual spore discharge? | back 21 peristome |
front 22 In which bryophyte structure specifically does a zygote develop into an embryo? | back 22 archegonium |
front 23 What structures allow plants to readily take up carbon dioxide from the atmosphere? | back 23 stomata |
front 24 Sphagnum is a _____ that forms extensive deposits of partially decayed organic material. | back 24 moss |
front 25 In the life cycle of a fern, the multicellular male gametangium (the sex organ that produces sperm cells) is called a(n) _____. | back 25 antheridium |
front 26 In the life cycle of ferns, the multicellular female gametangium (the sex organ that contains an egg) is a(n) _____. | back 26 archegonium |
front 27 Ferns and mosses are limited mostly to moist environments because _____. | back 27 they have swimming sperm |
front 28 What is the evolutionary significance of megaphylls? | back 28 They increase the surface area for photosynthesis. |
front 29 The "dots" on the underside of a fern frond are spore cases; therefore, what is true of the plant to which the frond belongs? | back 29 It is a sporophyte. |
front 30 Where would you find a fern gametophyte? | back 30 on moist soil |
front 31 Fern gametophytes are _______________. | back 31 free-living, multicellular organisms |
front 32 To examine meiosis in ferns, you would study _____. | back 32 the sporangia |
front 33 Vascular tissues of plants include _____. | back 33 xylem for conducting water and minerals, and phloem for conducting dissolved organic molecules |
front 34 Heterosporous plants produce _____. | back 34 megaspores that develop into female gametophytes and microspores that develop into male gametophytes |
front 35 Sori can be found in which of the following? | back 35 pterophytes |
front 36 In sporophyte ferns, the leaves are _____. | back 36 megaphylls |
front 37 The first large forests formed in the Carboniferous Period. The drawdown of CO2 levels by all of these plants caused _____. | back 37 global cooling |