Which of the following is not a green alga?

1. Ulothrix 2. Chara
3. Volvox 4. Ectocarpus
Subtopic:  Algae | Pteridophytes |
 92%
From NCERT
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A prothallus is

1. A structure in pteridophytes formed before the thallus develops
2. A sporophytic free living structure formed in pteridophytes
3. A gametophyte free living structure formed in pteridophytes
4. A primitive structure formed after fertilization in pteriodophytes
Subtopic:  Pteridophytes |
 67%
From NCERT
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Evolutionarily, the first terrestrial plants to possess vascular tissues are:

1. Bryophytes 2. Pteridophytes
3. Gnetales 4. Cycads
Subtopic:  Pteridophytes |
 93%
From NCERT
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Consider the following two statements:

I: The spread of living pteridophytes is restricted to narrow geographical regions
II: They are the first terrestrial plants to possess vascular tissues

1. Both I and II are correct and II explains I
2. Both I and II are correct but II does not explain I
3. I is true but II is false
4. I is false but II is true

Subtopic:  Pteridophytes |
 74%
From NCERT
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Which of the following does not belong to the class Pteropsida?

1. Dryopteris 2. Adiantum
3. Pteris 4. Lycopodium
Subtopic:  Pteridophytes |
 88%
From NCERT
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Identify the incorrect statement:

1. As compared to the bryophytes, pteridophytes have sporophyte as the main plant body
2. Pteridophyte sporophyte has well differentiated true roots, stem and leaves
3. Selaginella has macrophylls like ferns
4. In sporophyte of ferns, leaf-like appendages called sporophylls subtend sporangia
Subtopic:  Pteridophytes |
 75%
From NCERT
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Consider the following statements:

I: Pteridophytes are the first terrestrial plants to possess vascular bundles.
II: Main plant body in pteridophytes is sporophyte which is differentiated into true stem and leaves.
III: Genera like Selaginella and Salvinia are heterosporous.

Which of the above statements are true?

1. I and II only 2. I and III only
3. II and III only 4. I, II and III
Subtopic:  Pteridophytes |
 89%
From NCERT
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The given diagram shows :

1. An alga that lacks flagellated cells
2. A liverwort
3. A heterosporous pteridophyte
4. A gymnosperm with non motile sperms
Subtopic:  Pteridophytes |
 92%
From NCERT
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Given are the following five statements (I - V) for your consideration:

I: In Equisetum, the female gametophyte is retained on the parent sporophyte
II: In Ginkgo, male gametophyte is not independent
III: The sporophyte in Marchantia is more developed than that in Polytrichum
IV: Sexual reproduction in Volvox is isogamous
V: The spores of slime moulds lack cell walls


How many of the above statements is/are correct?

1. Three 2. Four
3. One 4. Two
Subtopic:  Algae | Pteridophytes | Gymnosperms |
From NCERT
AIPMT - 2012
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Examine the figures A, B, C and D. In which one of the four options all the items, A, B, C and D are correct?

Options : 

A B C D
1. Equisetum Ginkgo Selaginella Lycopodium
2. Selaginella Equisetum Salvinia Ginkgo
3. Funaria Adiantum Salvinia Riccia
4. Chara Marchantia Fucus Pinus
Subtopic:  Pteridophytes | Gymnosperms |
 91%
From NCERT
AIPMT - 2010
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