Q. No.Female sex organs of gymnosperms are called:
1.
Archegonia
2.
Female strobili
3.
Megasporangium
4.
Megasporophyll
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The microstrobilus in gymnosperms represents the:
| 1. | "female" cone | 2. | megasporangium-bearing cone |
| 3. | pollen-bearing cone | 4. | none of these |
In angiosperms, one of the male gametes fuses with the secondary nucleus to produce:
1. Endosperm
2. Zygote
3. Embryo
4. Primary endosperm nucleus
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Identify the incorrect statement regarding algae:
| 1. | Algae contain chlorophyll |
| 2. | Algae are autotrophic |
| 3. | Body of an alga is composed of pseudoparenchyma and hyphae |
| 4. | Cell wall of an alga is composed of true cellulose. |
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A difference between a gymnosperm and an angiosperm would be:
1. Lack of a flower
2. Undeveloped vascular tissue
3. Xylem is mainly composed of vessels and phloem contains companion cell in angiosperms
4. Microspore grows into a pollen tube
Which of the following is not seen in red algae?
| 1. | 2 unequal flagella | 2. | Cellulose cell wall |
| 3. | Phycoerythrin | 4. | Floridean starch |
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The bryophytes are also called as the amphibians of plants kingdom mainly because:
1. they respire through the moist epidermis
2. they depend on water for sexual reproduction
3. they require more water than most plants
4. they lack true roots
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What is incorrect regarding bryophytes in general?
1. Sex organs are multicellular
2. Main plant body is haploid
3. Sporophyte is free living and photosynthetic
4. Zygotes do not undergo reduction division immediately
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Identify the incorrectly matched pair:
|
1. |
Numerical taxonomy |
Based on all observable characteristics |
|
2. |
Cytotaxonomy |
Based on chromosome number, structure and behavior |
|
3. |
Chemotaxonomy |
Based on chemotrophic mode of nutrition |
|
4. |
Phylogenetic system |
Based on evolutionary relationships |
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