Q. No.Cycas and Adiantum resemble each other in having
1.
seeds
2.
motile sperms
3.
cambium
4.
vessels
Which one of the following is a correct statement?
| 1. | Pteridophyte gametophyte has a protonemal and leafy stage |
| 2. | In gymnosperms female gametophyte is free-living |
| 3. | Antheridiophores and archegoniophores are present in pteridophytes |
| 4. | Origin of seed habit can be traced in pteridophytes |
Which one of the following is common to multicellular fungi, filamentous algae and protonema of mosses?
(1) Diplontic life cycle
(2) Members of kingdom-Plantae
(3) Mode of nutrition
(4) Multiplication by fragmentation
Gymnosperms are also called soft wood spermatophytes because they lack
| 1. | cambium |
| 2. | phloem fibres |
| 3. | thick-walled tracheids |
| 4. | xylem fibres |
Compared with the gametophytes of the bryophytes, the gametophytes of vascular plants tends to be
| 1. | larger but to have smaller sex organs |
| 2. | larger and to have large sex organs |
| 3. | smaller and to have smaller sex organs |
| 4. | smaller but to have larger sex organs |
The gametophyte is not an independent, free living generation in
| 1. | Adiantum | 2. | Marchantia |
| 3. | Pinus | 4. | Polytrichum |
A prokaryotic autotrophic nitrogen fixing symbiont is found in
| 1. | Cycas | 2. | Cicer |
| 3. | Pisum | 4. | Alnus |
Male and female gametophytes are independent and free-living in
(1) mustard
(2) castor
(3) Pinus
(4) Sphagnum
Algae have cell wall made up of
1. cellulose, galactans and mannans
2. hemicellulose, pectins and proteins
3. pectins, cellulose and proteins
4. cellulose, hemicellulose and pectins
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