Which of the following statement is correct?
1.
Ovules are not enclosed by the 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.
| 1. | Uniflagellate gametes - Polysiphonia |
| 2. | Biflagellate zoospores - Brown algae |
| 3. | Gemma cups - Marchantia |
| 4. | Unicellular organism - Chlorella |
In bryophytes and pteridophytes, transport of male gametes requires?
| 1. | insects | 2. | birds |
| 3. | water | 4. | wind |
In which of the following gametophyte is not independent free-living?
| 1. | Funaria | 2. | Marchantia |
| 3. | Pteris | 4. | Pinus |
An alga which can be employed as food for human beings:
1. Ulothrix
2. Chlorella
3. Spirogyra
4. Polysiphonia
Gametophyte in the pteridophytes is
(i) Small, inconspicuous.
(ii) Long lived, unicellular.
(iii) Mostly photosynthetic thalloid or saprophytic.
(iv) Short lived, haploid.
How many statements are correct with respect to gametophyte?
1. Two
2.Three
3. Four
4. One
Development of the zygotes into young embryo takes within the female gametophytes in
1. Adiantum.
2. Selaginella.
3. Riccia.
4. Batrachospermum.
Select the wrong statement:
| 1. | Anisogametes differ either in structure, function or behaviour |
| 2. | In Oomycetes, the female gamete is smaller and motile, while the male gamete is larger and non-motile |
| 3. | Chlamydomonas exhibits both isogamy and anisogamy and Fucus shows oogamy |
| 4. | Isogametes are similar in structure, function and behaviour |
Mannitol is a sugar alcohol. It is as stored food in:
1. Fucus
2. Gracillaria
3. Chara
4. Porphyra
© 2025 GoodEd Technologies Pvt. Ltd.