The gemmae produced by some liverworts function as:
1. A water gathering structure
2. A light capturing structure
3. A sexual structure
4. An asexual structure
In mosses, the sex organs are seen in:
1. Protonema stage
2. Leafy stage
3. Capsule of the sporophyte
4. Seta of the sporophyte
Identify the statement that most accurately describes the plant shown in the given figure:
1. This the male prothallus of Marchantia; A is antheridiophore and B is Gemma cup
2. This the female prothallus of Marchantia; A is archegoniophore and B is Gemma cup
3. This the male prothallus of Sphagnum; A is antheridiophore and B is Gemma cup
4. This the female prothallus of spahgnum; A is archegoniphore and B is Gemma cup
Read the following statements (IV) and answer the question which follows them
| I. | In liverworts, mosses and ferns gametophytes are free living. |
| II. | Gymnosperms and some ferns are heterospores. |
| III. | Sexual reproduction in Fucus, Volvox and Albugo is oogamous. |
| IV. | The sporophyte in liverworts is more elaborate than that in mosses. |
How many of the above statements are correct?
1. One
2. Two
3. Three
4. Four
Spore dissemination in some liverworts is aided by:
| 1. | elaters | 2. | indusium |
| 3. | calyptra | 4. | peristome teeth |
Elater mechanism for seed dispersal is exhibited by
1. Riccia
2. Marchantia
3. Dryopteris
4. Funaria
Match the columns.
|
|
Column - I |
|
Column - II |
|
A. |
Hornwort |
1. |
Lycopodium |
|
B. |
Liverwort |
2. |
Ricciocarpus |
|
C. |
Stonewort |
3. |
Anthoceros |
|
D. |
Club moss |
4. |
Chara |
|
|
A |
B |
C |
D |
|
(1) |
2 |
3 |
4 |
1 |
|
(2) |
2 |
3 |
1 |
4 |
|
(3) |
3 |
2 |
1 |
4 |
|
(4) |
3 |
2 |
4 |
1 |
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