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Q. No.
Mannitol is a sugar alcohol. It is stored as food in
| 1. | Fucus | 2. | Gracillaria |
| 3. | Chara | 4. | Porphyra |
85%
From NCERT
In bryophytes and pteridophytes, transport of male gametes requires
| 1. | insects | 2. | birds |
| 3. | water | 4. | wind |
94%
From NCERT
Which of the following statement is correct?
1. Ovules are not enclosed by ovary wall in gymnosperms
2. Selaginella is heterosporous, while Salvinia is homosporous
3. Horsetails are gymnosperms
4. Stems are usually unbranched in both Cycas and Cedrus
88%
From NCERT
A plant has a diploid sporophyte as the dominant, independent, photosynthetic, vascular body. It alternates with multicellular, saprophytic/autotrophic, independent but short-lived haploid gametophyte. This plant most likely belongs to:
| 1. | Red algae | 2. | Bryophytes |
| 3. | Pteridophytes | 4. | Gymnosperms |
Subtopic: Pteridophytes |
79%
From NCERT
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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: Pteridophytes |
92%
From NCERT
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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: Chlorophyceae: Green Algae |
61%
From NCERT
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Which of the following statement is true about the difference between Cycas and Pinus?
| 1. | Pinus has coralloid roots associated with N2-fixing cyanobacteria, whereas Cycas has roots with fungal association in the form of mycorrhiza |
| 2. | Cycas is heterosporous, whereas Pinus is homosporous |
| 3. | Male cones and female megasporophylls are borne on different trees in Cycas, whereas they are borne on the same tree in Pinus |
| 4. | Stems of Cycas are branched, whereas Pinus has unbranched stems |
Subtopic: Gymnosperms |
61%
From NCERT
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Given below are two statements:
| Statement I: | Chlorella is used as food supplement by space travellers |
| Statement II: | Chlorella is a unicellular algae |
| 1. | Both I and II are true and II correctly explains I |
| 2. | I is true and II is false |
| 3. | Both I and II are true but II does not explain I |
| 4. | Both I and II are false |
Subtopic: Algae |
74%
From NCERT
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The algae shown in the diagram below belongs to the class which has:
1. 2-8 equal and apical flagella
2. 2 unequal and lateral flagella
3. 2 unequal and apical flagella
4. 2-8 equal and lateral flagella
1. 2-8 equal and apical flagella
2. 2 unequal and lateral flagella
3. 2 unequal and apical flagella
4. 2-8 equal and lateral flagella
Subtopic: Algae |
80%
From NCERT
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