The common name for plants in the Division Psilophyta is A. club mosses. B. horsetails. C. whisk...
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Transcript of The common name for plants in the Division Psilophyta is A. club mosses. B. horsetails. C. whisk...
• The common name for plants in the Division Psilophyta is
• A. club mosses.
• B. horsetails.
• C. whisk ferns.
• D. quillworts.
• Ground pine and spike mosses are members of which division?
• A. Pterophyta
• B. Sphenophyta
• C. Lycophyta
• D. Psilophyta
Fig. 21.3
• What name is given to the condition in which male and female spores and gametophytes are produced separately on one plant?
• A. heterospory
• B. alternation of generations
• C. homospory
• D. none of the above
Fig. 21.17d
• Fern sporangia form clusters on the back of the leaf called
• A. indusia.
• B. pinnae.
• C. microsporophylls.
• D. sori.
• What is the function of the annulus?
• A. to produce spores
• B. to catapult spores out of the sporangium
• C. to protect the archegonium
• D. to protect the young sporophyte
• What is a prothallus?
• A. a fern gametophyte
• B. a club moss strobilus
• C. a fern fossil
• D. a fern sporangium
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• In the Division Pinophyta, the male gametophyte is produced in the ovule.
• A. True
• B. False
• In gymnosperms, another name for the strobilus is cone.
• A. True
• B. False
Fig. 22.12
• Ginkgo trees produce male and female flowers on separate trees.
• A. True
• B. False
• Gnetophytes are the only gymnosperms that have vessels in their xylem.
• A. True
• B. False
Fig. 22.15
• Which structure is NOT part of the female gametophyte?
• A. nucellus
• B. integument
• C. egg
• D. generative cell
• Which of the following tissues becomes the seed coat after fertilization in pines?
• A. micropyle
• B. nucellus
• C. megaspore
• D. integument
• In pine, the female gametophyte is housed in the
• A. aril.
• B. ovule.
• C. pollen chamber.
• D. pollen grain.
Pine Life Cycle
Pine Life Cycle
• In pine pollen, the spermatogenous cell
• A. divides and produces a sterile cell.
• B. produces one sperm cell.
• C. produces two sperm cells.
• D. forms the pollen tube.
• Which of the following gymnosperms has only one living species?
• A. gnetophytes
• B. cycads
• C. ginkgoes
• D. pines
• In flowering plants, the female gametophyte develops in the ovule.
• A. True
• B. False
Fig. 23.5
• Primitive flowers have bilateral symmetry whereas modern flowers have radial symmetry.
• A. True
• B. False
• What is the ultimate result of megasporocyte meiosis and mitosis?
• A. the production of 4 diploid cells
• B. the production of 8 haploid cells
• C. the production of 8 haploid nuclei
• D. the production of 4 haploid cells
• What is the term used to describe the outer layer of the pollen grain wall?
• A. exine
• B. aperature
• C. micropyle
• D. seed coat
Fig. 23.8
• Fruits that develop from ovaries that have unfertilized eggs are called
• A. carpels.
• B. parthenocarpic.
• C. epigynous.
• D. inferior.
• Red flowers are usually pollinated by
• A. moths.
• B. birds and butterflies.
• C. beetles.
• D. animals.
• Collections of dried, pressed, and labeled plants arranged by family are called
• A. libraries.
• B. herbaria.
• C. archives.
• D. none of the above.