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1 | |
All plants exhibit alternation of generations. This means their life cycle
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| | A) | includes both haploid and diploid gametes. |
| | B) | shows only asexual reproduction. |
| | C) | has both a multicellular haploid stage and a multicellular diploid stage. |
| | D) | does not include meiosis. |
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2 | |
The plant life cycle has both a sporophyte and a gametophyte generation. In the sporophyte stage,
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| | A) | gametes are produced. |
| | B) | meiosis occurs. |
| | C) | only mitosis takes place. |
| | D) | gametophytes form. |
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3 | |
In plants, |
| | A) | gametes are produced directly after meiosis. |
| | B) | gametes are produced directly after mitosis. |
| | C) | no gametes are motile. |
| | D) | seeds are always produced. |
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4 | |
Which of the following is true of the bryophytes?
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| | A) | It is the only group that shows an alternation of generations. |
| | B) | Bryophytes exhibit extensive vascular tissue. |
| | C) | The sporophyte (multicellular diploid) is the conspicuous stage. |
| | D) | The gametophyte (multicellular haploid) is the conspicuous stage. |
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5 | |
A plant's vascular tissue is composed of xylem and phloem. The xylem generally transports _____, whereas the phloem transports _____.
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| | A) | water/sugar |
| | B) | sugar/water |
| | C) | water/water |
| | D) | sugar/sugar |
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6 | |
In the conifers, the
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| | A) | gametophyte is prominent, and the sporophyte is dependent upon the gametophyte. |
| | B) | sporophyte is prominent, with the sporophyte and gametophyte living independently. |
| | C) | sporophyte is prominent, and the gametophyte is dependent upon the sporophyte. |
| | D) | gametophyte is prominent, and the sporophyte stage has disappeared. |
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7 | |
Which of the following characters is seen in the gymnosperms, but is not seen in other seeded vascular plants?
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| | A) | alternation of generations |
| | B) | exposed seeds |
| | C) | sporophyte stage |
| | D) | pollen |
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8 | |
All flowering plants (angiosperms)
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| | A) | produce exposed seeds. |
| | B) | are nonvascular. |
| | C) | have flagellated sperm. |
| | D) | have fruit. |
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9 | |
In the angiosperms, the
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| | A) | gametophyte is prominent, and the sporophyte is dependent upon the gametophyte. |
| | B) | sporophyte is prominent, with the sporophyte and gametophyte living independently. |
| | C) | sporophyte is prominent, and the gametophyte is dependent upon the sporophyte. |
| | D) | gametophyte is prominent, and the sporophyte stage has disappeared. |
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10 | |
Which of the following is not characteristic of a monocot?
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| | A) | leaves with parallel veins |
| | B) | flower parts usually in threes or multiples of three |
| | C) | lateral meristems occurring rarely |
| | D) | seed with two cotyledons |
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