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Q. No.In Cycas:
I:
coralloid roots are associated with N2-fixing cyanobacteria
II:
the stems are unbranched
III:
the pinnate leaves persist for a few years
1.
Only I and II are correct
2.
Only I and III are correct
3.
Only II and III are correct
4.
I, II and III are correct
Subtopic: Gymnosperms |
78%
From NCERT
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Match each item in Column I with one in Column II and select the correct match from the codes given:
Codes:
| Column I [Algal class] |
Column II [Feature of flagella] |
||
| A | Chlorophyceae | P | 2, unequal, lateral |
| B | Phaeophyceae | Q | Absent |
| C | Rhodophyceae | R | 2-8, equal, apical |
| A | B | C | |
| 1. | R | P | Q |
| 2. | R | Q | P |
| 3. | P | R | Q |
| 4. | Q | R | P |
Subtopic: Pheophyceae: Brown Algae | Rhodophyceae: Red Algae and Importance of Algae | Chlorophyceae: Green Algae |
88%
From NCERT
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Match each item in Column I with one in Column II and select the correct match from the codes given:
| Column I [Pteridophyte class] |
Column II [Example] |
||
| A | Psilopsida | P | Psilotum |
| B | Lycopsida | Q | Adiantum |
| C | Sphenopsida | R | Selaginella |
| D | Pteropsida | S | Equisetum |
| A | B | C | D | |
| 1. | P | R | Q | S |
| 2. | P | R | S | Q |
| 3. | P | S | R | Q |
| 4. | Q | S | R | P |
Subtopic: Pteridophytes |
81%
From NCERT
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Evolutionarily, pteridophytes are the first:
| 1. | plants with haplontic life cycle |
| 2. | terrestrial plants with dominant gametophytic generation |
| 3. | plants to produce flowers pollinated by insects |
| 4. | terrestrial plants to possess vascular tissues |
Subtopic: Pteridophytes |
90%
From NCERT
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Match each item in Column I with one in Column II and select the correct match from the codes given:
Codes:
| Column I | Column II | ||
| A | Ulothrix | P | Brown algae with diplontic life cycle |
| B | Ectocarpus | Q | Major pigments are chlorophyll a and b |
| C | Fucus | R | Brown algae with haplo-diplontic life cycle |
| D | Polysiphonia | S | Lack flagella |
| A | B | C | D | |
| 1. | P | S | Q | R |
| 2. | Q | P | R | S |
| 3. | Q | R | P | S |
| 4. | R | Q | S | P |
Subtopic: Pheophyceae: Brown Algae | Life Cycle Patterns in Plants (OLD NCERT) | Chlorophyceae: Green Algae |
79%
From NCERT
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Floridean starch is a form of:
| 1. | stored food in red algae that resembles the structure of amylopectin and glycogen |
| 2. | stored food in brown algae that resembles the structure of agarose and agaropectin |
| 3. | carbohydrate found in cell wall of brown algae that resembles the structure of amylopectin and glycogen |
| 4. | carbohydrate found in cell wall of red algae that resembles the structure of agarose and agaropectin |
Subtopic: Rhodophyceae: Red Algae and Importance of Algae |
89%
From NCERT
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A and B in the given diagram respectively show:
| 1. | Male thallus of Marchantia and Female thallus of Marchantia |
| 2. | Female thallus of Marchantia and Male thallus of Marchantia |
| 3. | Male thallus of Funaria and Female thallus of Funaria |
| 4. | Female thallus of Funaria and Male thallus of Funaria |
Subtopic: Bryophytes |
88%
From NCERT
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In gymnosperms:
| 1. | gametophytes have an independent free-living existence |
| 2. | pollen grains are transported by water |
| 3. | pollen tubes are not seen |
| 4. | seeds are not covered |
Subtopic: Gymnosperms |
88%
From NCERT
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Asexual reproduction in brown algae is by:
| 1. | biflagellate biconcave disc shaped zoospores |
| 2. | non-motile spherical aplanogametes |
| 3. | biflagellate pear shaped zoospores |
| 4. | non-motile zoospores produced in zoosporangia |
Subtopic: Pheophyceae: Brown Algae |
89%
From NCERT
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Consider the two statements:
| Statement I: | Antheridium in bryophytes produces biflagellate antherozoids. |
| Statement II: | Archegonium in bryophytes produces a single egg. |
| 1. | Statement I is correct; Statement II is incorrect |
| 2. | Statement I is correct; Statement II is correct |
| 3. | Statement II is correct; Statement I is incorrect |
| 4. | Statement I is incorrect; Statement II is incorrect |
Subtopic: Bryophytes |
89%
From NCERT
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