- 1(current)
Q. No.Examine the figure given below and select the right option giving all the four parts (a, b, c and d) correctly identified.
| (a) | (b) | (c) | (d) | |
| 1. | Archegoniophore | Female thallus | Gemma cup | Rhizoids |
| 2. | Archegoniophore | Female thallus | Bud | Foot |
| 3. | Seta | Sporophyte | Protonema | Rhizoids |
| 4. | Antheridiophore | Male thallus | Globule | Roots |
In a moss, the sporophyte
1. Manufactures food for itself, as well as for the gametophyte
2. Arises from a spore produced from gametophyte
3. Is partially parasitic on the gametophyte
4. Produces gametes that give rise to the gametophyte
Read the following statements (A-E) and answer the question which follows them.
| (A) | In liverworts, mosses, and ferns gametophytes are free-living |
| (B) | Gymnosperms and some ferns are heterosporous |
| (C) | Sexual reproduction in Fucus, Volvox and Albugo is oogamous |
| (D) | The sporophyte in liverworts is more elaborate than that in mosses |
| (E) | Both, Pinus and Marchantia, are dioecious |
How many of the above statements are correct?
| 1. Two | 2. Three |
| 3. Four | 4. One |
Examine the figure given below and select the right option giving all the four parts (A, B, C and D) correctly identified:
| A | B | C | D | |
| 1. | Antheridiophore | Male thallus | Globule | Roots |
| 2. | Archegoniophore | Female thallus | Gemma cup | Rhizoids |
| 3. | Archegoniophore | Female thallus | Bud | Foot |
| 4. | Seta | Sporophyte | Protonema | Rhizoids |
Moss peat is used as a packing material for sending flowers and live plants to distant places because:
1. it is easily available
2. it is hygroscopic
3. it reduces transpiration
4. it serves as a disinfectant
- 1(current)
Q. No.
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