Read the following statements and identify the characters related to the alga shown in the diagram:
a.
It is a member of Chlorophyceae.
b.
Food is stored in the form of starch.
c.
It is a monoecious plant showing oogonium and antheridium.
d.
Food is stored in the form of laminarin or mannitol.
e.
It shows dominance of pigments chlorophyll a, c and Fucoxanthin.
Choose the correct answer from the options given below:
1. (a) and (b) only
2. (a), (b) and (c) only
3. (a), (c) and (d) only
4. (c), (d) and (e) only
Subtopic: Chlorophyceae: Green Algae: I |
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Level 3: 35%-60%
NEET - 2022
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Select the incorrect statement with respect to algae.
| 1. | The food stored in red algae is in the form of floridean starch |
| 2. | Pyrenoids in green algae contain protein besides starch |
| 3. | Asexual reproduction in most brown algae is by non-motile spores |
| 4. | Brown algae show great variation in size and form |
Subtopic: Algae |
82%
Level 1: 80%+
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In gymnosperms:
| 1. | The female gametophyte has independent free-living existence. |
| 2. | Two different types of spores are produced. |
| 3. | Ovules are enclosed by an ovary wall. |
| 4. | Pollen grains are carried to the ovule by water currents. |
Subtopic: Gymnosperms |
77%
Level 2: 60%+
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The given figure represents the life cycle of:
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| 1. | a homosporous plant with bisexual gametophytes |
| 2. | a heterosporous plant with bisexual gametophytes |
| 3. | a homosporous plant with unisexual gametophytes |
| 4. | a heterosporous plant with unisexual gametophytes |
Subtopic: Pteridophytes |
50%
Level 3: 35%-60%
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The given figure represents the life cycle of a typical:
| 1. Gymnosperm | 2. Angiosperm |
| 3. Bryophyte | 4. Pteridophyte |
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Level 1: 80%+
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The given figure represents:
| 1. | Equisetum, a horsetail where A is macrophyll and B is microphyll |
| 2. | Sphagnum, peat moss where A is microphyll and B is macrophyll |
| 3. | Equisetum, a horsetail where A is archegonial branch and B is antheridial branch |
| 4. | Sphagnum, peat moss where A is archegonial branch and B is antheridial branch |
Subtopic: Bryophytes |
71%
Level 2: 60%+
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The given structure belongs to:
| 1. | the gametophytic generation in the life cycle of a fern |
| 2. | the sporophytic generation in the life cycle of a fern |
| 3. | the gametophytic generation in the life cycle of a moss |
| 4. | the sporophytic generation in the life cycle of a moss |
Subtopic: Bryophytes |
Level 3: 35%-60%
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The given diagram shows:
1. The male thallus of Marchantia
2. The female thallus of Marchantia
3. The male thallus of Funaria
4.The female thallus of Funaria
1. The male thallus of Marchantia
2. The female thallus of Marchantia
3. The male thallus of Funaria
4.The female thallus of Funaria
Subtopic: Bryophytes |
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Level 1: 80%+
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Study the given two statements – an Assertion and Reason, and select the correct answer from the options given:
| Assertion(A): | Chlorella is used as a food source and food supplement. |
| Reason(R): | Chlorella is high in protein and other essential nutrients. |
| 1. | (A) is true but (R) is false |
| 2. | Both (A) and (R) are true and (R) correctly explains (A) |
| 3. | (A) is false but (R) is true. |
| 4. | Both (A) and (R) are true but (R) does not correctly explain (A). |
Subtopic: Algae | Chlorophyceae: Green Algae |
85%
Level 1: 80%+
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Regarding pteridophytes:
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
| I. | They are first terrestrial plants to produce seeds. |
| II. | The main plant body is a sporophyte. |
| III. | Prothallus is a thalloid gametophyte. |
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
Subtopic: Pteridophytes |
62%
Level 2: 60%+
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