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 |
Sphagnum can be distinguished from mosses by all the following characteristics except:
1. | The stem has no rhizoids |
2. | Leaves have green and hyaline cells |
3. | The sex organs do not limit the indefinite growth of the main axis |
4. | The capsule is borne on seta |
An important feature of bryophytes is that the embryonic development of the zygote takes place in the:
1. Sporangium | 2. Archegonium |
3. Protonema | 4. Antheridium |