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| 1 | Algae are ________, meaning they can synthesize all required organic compounds from inorganic substances using external energy. |
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| 2 | Protists are most abundant in ________ habitats, and most are ________ in size. |
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| 3 | Currently, we classify protist phyla into several eukaryotic ________ that each display distinctive features. |
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| 4 | Algae are a monophyletic group. |
 | A) | True |
| B) | False |
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| 5 | Which characteristic is not used to distinguish the major groups of algae? |
| A) | cellular organization |
| B) | storage products |
| C) | sexual reproductive structures |
| D) | pigments |
| E) | cell wall components |
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| 6 | The cellular organization of algae includes unicellular, multicellular, ________, and ________. |
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| 7 | Green algae are considered to be ancestral to land plants. |
| A) | True |
| B) | False |
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| 8 | Phylum Chlorophyta has unicellular, filamentous, and colonial species. |
| A) | True |
| B) | False |
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| 9 | Define syngamy. |
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| 10 | Gametes of two strains of algae that have an identical shape and appearance are ________. |
| A) | oogamous |
| B) | isosporous |
| C) | heterogamous |
| D) | isogamous |
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| 11 | During sexual reproduction in some algae, filaments of opposite mating types lie side by side and form projections that grow toward each other to form ________. The cellular contents of the – strain then migrate through these structures and fuse with that of the + strain. |
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| 12 | Alternation of generations is a reproductive cycle in which the haploid ________ produces gametes that fuse to form a zygote that germinates to produce a diploid ________. |
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| 13 | ________ is a form of heterogamy in which the female gametes are large and non-motile eggs and the male gametes are motile sperm. |
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| 14 | In Phylum Phaeophyta, ________ are multicellular sex organs that produce eggs, and ________ are multicellular sex organs that produce sperm. |
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| 15 | During asexual reproduction in Volvox, some cells divide, bulge inward, and produce new colonies called ________. |
| A) | daughter colonies |
| B) | daughter cells |
| C) | zygospores |
| D) | oogonia |
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Answer choices:
| | A) | conceptacles,multicellular,alginic acid
| | B) | flagella,unicellular only,cellulose plates
| | C) | flagella,colonial,multicellular
| | D) | multicellular, agar
| | E) | silica in cell wall,unicellular only,diatomaceous earth
| | F) | flagella,protein cell wall,unicellular only
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| 22 | A ________ (the zygote with its resistant surface) waits for favorable conditions and then undergoes meiosis to produce haploid spores. |
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| 23 | Describe two ways that algae affect your life. |
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