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. |
A | B | C | D | |
1. | P | Q | R | S |
2. | Q | P | R | S |
3. | P | Q | S | R |
4. | Q | P | S | R |
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 |
Consider the following four statements whether they are correct or wrong,
(A) The sporophyte in liverworts is more elaborate than that in mosses.
(B) Salvinia is heterosporous.
(C) The life-cycle in all seed-bearing plants is diplontic.
(D) In Pinus, male and female cones are borne on different trees.
The two wrong statements together are
1. (A) and (C) | 2. (A) and (D) |
3. (B) and (C) | 4. (A) and (B) |
I: | They are the first terrestrial plants to possess true vascular tissue |
II: | Main plant is sporophyte |
III: | Water is required for transfer of antherozoids |
I: | Evolutionarily, they are the first terrestrial plants to possess flowers. |
II: | The dominant phase in the life cycle is the gametophytic plant body. |
Column I | Column II | ||
A. | Psilopsida | P. | Selanginella |
B. | Lycopsida | Q. | Adiantum |
C. | Sphenopsida | R. | Equisetum |
D. | Pteropsida | S. | Psilotum |
A | B | C | D | |
1. | R | Q | S | P |
2. | S | P | R | Q |
3. | P | S | Q | R |
4. | Q | R | P | S |