Plantae Multiple Questions and Answers.
Exercise Questions ::
Diversity of Life
1. | 1. Which of the following does NOT belong to the class of Cryptogamae (plant without seeds)? |
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| A. | a) Bryophytes |
| B. | b) Thallophyta |
| C. | c) Angiosperm |
| D. | d) Ptrediophytes |
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| Answer: Option Answer: c |
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| Explanation: |
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Explanation: Plantae have photosynthetic nutrition and these are multicellular eukaryotes. It
has been broadly classified into Cryptogamae means plant without seeds and
Phanerogamae which means a plant with seeds. |
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| Answer: Option Answer: a |
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| Explanation: |
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Explanation: Green algae is also known as chlorophyta. These are photosynthetic algae
contain chlorophyll a and b with carotenoids. |
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3. | 3. Which of the following class of algae consists of alginic acid in their cell wall component? |
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| A. | a) Green algae |
| B. | b) Red algae |
| C. | c) Brown algae |
| D. | d) Lichens |
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| Answer: Option Answer: c |
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| Explanation: |
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Explanation: Brown algae or pheophyta is marine or fresh water algae. It consists of mainly
chlorophyll a, and c along with fucoxanthin and carotenoids. Their cell wall consists of
cellulose, sulfated polysaccharides, and alginic acid. |
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| Answer: Option Answer: a |
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| Explanation: |
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Explanation: Haploid spores are produced from diploid spores by the process of meiosis. It
will produce either motile spores or nonmotile spores. Motile spores are called zoospores
while nonmotile spores are aplanospores. |
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| Answer: Option Answer: c |
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| Explanation: |
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Explanation: Pteridophytes are seedless plants with vascular structure, long lived and highly
branched. Their life cycle is dominated by sporophyte. They also produce haploid spores by
meiosis. |
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