Which of the following algae exhibits the life cycle as shown in the diagram below?
1. Fucus
2. Spirogyra
3. Ectocarpus
4. Polysiphonia
 77%
Level 2: 60%+
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Consider the following statements about the different classes of algae:
| I: | The members of Chlorophyceae have a rigid cell wall made of an inner layer of cellulose and an outer layer of pectose |
| II: | The members of Rhodophyceae do not have a flagellum |
| III: | Members of Phaeophyceae store food as floridean starch which is very similar to amylopectin and glycogen in structure |
| 1. | Only I and III are correct |
| 2. | Only I and II are correct |
| 3. | Only II and III are correct |
| 4. | All I, II and III are correct |
Subtopic: Â Chlorophyceae: Green Algae |
 66%
Level 2: 60%+
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Which of the following is true regarding the classes of Bryophytes?
1. The thallus of mosses is dorsiventral and closely appressed to the surface
2. In the life cycle of liverworts, the predominant gametophytic stage is divided into two stages - the protonema and the leafy stage
3. The sporophyte in liverworts is more elaborate than in mosses
4. Asexual reproduction in liverworts takes place by fragmentation of thalli, or by the formation of specialised structures called gemmae
1. The thallus of mosses is dorsiventral and closely appressed to the surface
2. In the life cycle of liverworts, the predominant gametophytic stage is divided into two stages - the protonema and the leafy stage
3. The sporophyte in liverworts is more elaborate than in mosses
4. Asexual reproduction in liverworts takes place by fragmentation of thalli, or by the formation of specialised structures called gemmae
Subtopic: Â Bryophytes |Â Bryophytes (Liverworts) |
 80%
Level 1: 80%+
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Match each item in Column I with one in Column II and choose the correct option from the codes given below:
| Column I | Column II | ||
| A. | Psilopsida | P. | Selanginella |
| B. | Lycopsida | Q. | Adiantum |
| C. | Sphenopsida | R. | Equisetum |
| D. | Pteropsida | S. | Psilotum |
| A | B | C | D | |
| 1. | R | Q | S | P |
| 2. | S | P | R | Q |
| 3. | P | S | Q | R |
| 4. | Q | R | P | S |
Subtopic: Â Pteridophytes |
 93%
Level 1: 80%+
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Which of the following algae is not haplo-diplontic?
| 1. | Kelps | 2. | Ectocarpus |
| 3. | Spirogyra | 4. | Polysiphonia |
Subtopic: Â Algae |
 59%
Level 3: 35%-60%
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Hydrocolloid carrageen is obtained from:
1. Phaeophyceae only
2. Chlorophyceae and Phaeophyceae
3. Phaeophyceae and Rhodophyceae
4. Rhodophyceae only
1. Phaeophyceae only
2. Chlorophyceae and Phaeophyceae
3. Phaeophyceae and Rhodophyceae
4. Rhodophyceae only
Subtopic: Â Algae |
 74%
Level 2: 60%+
NEET - 2022
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Which of the following is incorrectly matched?
1. Volvox - Starch
2. Ectocarpus - Fucoxanthin
3. Ulothrix - Mannitol
4. Porphyra - Floridian starch
1. Volvox - Starch
2. Ectocarpus - Fucoxanthin
3. Ulothrix - Mannitol
4. Porphyra - Floridian starch
Subtopic: Â Chlorophyceae: Green Algae: I |
 81%
Level 1: 80%+
NEET - 2022
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Match the plant with the kind of life cycle it exhibits:
Choose the correct answer from the options given below:
| List-I | List-II | ||
| (a) | Spirogyra | (i) | Dominant diploid sporophyte vascular plant, with highly reduced male or female gametophyte |
| (b) | Fern | (ii) | Dominant haploid free-living gametophyte |
| (c) | Funaria | (iii) | Dominant diploid sporophyte alternating with reduced gametophyte called prothallus |
| (d) | Cycas | (iv) | Dominant haploid leafy gametophyte alternating with partially dependent multicellular sporophyte |
Choose the correct answer from the options given below:
| (a) | (b) | (c) | (d) | |
| 1. | (ii) | (iv) | (i) | (iii) |
| 2. | (iv) | (i) | (ii) | (iii) |
| 3. | (ii) | (iii) | (iv) | (i) |
| 4. | (iii) | (iv) | (i) | (ii) |
Subtopic: Â Miscellaneous |
 69%
Level 2: 60%+
NEET - 2022
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Match List-I with List-II:
| List-I | List-II | ||
| a. | Cedrus | (i) | Pteridophyte |
| b. | Adiantum | (ii) | Gymnosperm |
| c. | Sphagnum | (iii) | Liverwort |
| d. | Marchantia | (iv) | Moss |
Choose the correct answer from the options given below:
| a | b | c | d | |
| 1. | (ii) | (iii) | (i) | (iv) |
| 2. | (iii) | (i) | (iv) | (ii) |
| 3. | (ii) | (i) | (iv) | (iii) |
| 4. | (iii) | (iv) | (ii) | (i) |
Subtopic: Â Miscellaneous |
 88%
Level 1: 80%+
NEET - 2022
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Which one of the following structures is haploid in its ploidy level?
1. Primary Endospore Nucleus
2. Microspore Mother cell
3. Protonemal cell of a moss
4. Primary endosperm nucleus in dicot
Subtopic: Â Miscellaneous |
 75%
Level 2: 60%+
NEET - 2022
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