- 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 |
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Match the terms in Column I with their correct description in Column II and select the correct match from the codes given:
| COLUMN I | COLUMN II | ||
| A | Protonema | P | The first stage in development of the gametophyte in mosses. |
| B. | Prothallus | Q | The photosynthetic gametophyte in ferns. |
| C. | Seta | R | In bryophytes, the stalk that supports the capsule, if present. |
| D. | Stipe | S | The stem-like part of the thallus of brown algae such as kelp |
Codes
| A | B | C | D | |
| 1. | P | Q | R | S |
| 2. | Q | P | R | S |
| 3. | P | Q | S | R |
| 4. | Q | P | S | R |
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
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 |
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
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 |
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Q. No.
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