C8e_30_Test_Bank

C8e_30_Test_Bank - Biology, 8e (Campbell) Chapter 30 Plant...

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Biology, 8e (Campbell) Chapter 30 Plant Diversity II: The Evolution of Seed Plants Multiple-Choice Questions 1) The sporophytes of mosses depend on the gametophytes for water and nutrition. In seed plants, the reverse is true. From which seed plant sporophyte structure(s) do the immature (unfertilized) gametophytes directly gain water and nutrition? A) sporophylls B) embryos C) sporangia D) sporopollenin E) ovary Answer: C Topic: Concept 30.1 Skill: Knowledge/Comprehension 2) The result of heterospory is A) the existence of male and female sporophytes. B) the existence of male and female gametophytes. C) the absence of sexuality from both plant generations. D) both (A) and (B) above. Answer: B Topic: Concept 30.1 Skill: Application/Analysis 3) Which of the following is an ongoing trend in the evolution of land plants? A) decrease in the size of the leaf B) reduction of the gametophyte phase of the life cycle C) elimination of sperm cells or sperm nuclei D) increasing reliance on water to bring sperm and egg together E) replacement of roots by rhizoids Answer: B Topic: Concept 30.1 Skill: Knowledge/Comprehension 4) All of the following cellular structures are functionally important in cells of the gametophytes of both angiosperms and gymnosperms, except A) haploid nuclei. B) mitochondria. C) cell walls. D) chloroplasts. E) peroxisomes. 1
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Answer: D Topic: Concept 30.1 Skill: Application/Analysis 5) Plants with a dominant sporophyte are successful on land partly because A) having no stomata, they lose less water. B) they all disperse by means of seeds. C) diploid plants experience fewer mutations than do haploid plants. D) their gametophytes are completely enclosed within sporophyte tissue. E) eggs and sperm need not be produced. Answer: D Topic: Concept 30.1 Skill: Knowledge/Comprehension 6) The seed coat's most important function is to provide A) a nonstressful environment for the megasporangium. B) the means for dispersal. C) dormancy. D) a nutrient supply for the embryo. E) desiccation resistance. Answer: E Topic: Concept 30.1 Skill: Knowledge/Comprehension 7) In addition to seeds, which of the following characteristics are unique to the seed-producing plants? A) sporopollenin B) lignin present in cell walls C) pollen D) use of air currents as a dispersal agent E) megaphylls Answer: C Topic: Concept 30.1 Skill: Knowledge/Comprehension 8) Which of the following most closely represents the male gametophyte of seed-bearing plants? A) ovule B) microspore mother cell C) pollen grain interior D) embryo sac E) fertilized egg Answer: C Topic: Concept 30.1 2
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Skill: Knowledge/Comprehension 9) Suppose that the cells of seed plants, like the skin cells of humans, produce a pigment upon increased exposure to UV radiation. Rank the cells below, from greatest to least, in terms of the likelihood of producing this pigment. 1. cells of sporangium
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This note was uploaded on 03/07/2010 for the course BIO 3A taught by Professor Huntley during the Spring '10 term at Saddleback.

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C8e_30_Test_Bank - Biology, 8e (Campbell) Chapter 30 Plant...

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