Q. No.The first group of terrestrial plants to get rid of the swimming sperm was the:
1.
Club mosses
2.
Ferns
3.
Gymnosperms
4.
Angiosperms
The life cycle pattern shown in the given diagram is not seen in:
1. Chlamydomanas
2. Spirogyra
3. Volvox
4. Ectocarpus
The given diagram shows :
| 1. | An alga that lacks flagellated cells |
| 2. | A liverwort |
| 3. | A heterosporous pteridophyte |
| 4. | A gymnosperm with non-motile sperms |
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
Which one is a wrong statement?
| 1. | Archegonia are found in Bryophyta, Pteridophyta and Gymnosperms. |
| 2. | Mucor has biflagellate zoospores. |
| 3. | Haploid endosperm is typical feature of gymnosperm. |
| 4. | Brown algae have chlorophyll-a and c, and fucoxanthin. |
Read the following five statements (I to V) and select the option with all correct statements.
| I. | Mosses and lichens are the first organisms to colonise a bare rock. |
| II. | Selaginella is a homosporous pteridophyte. |
| III. | Coralloid roots in Cycas have VAM. |
| IV. | main plant body in bryophytes is gametophytic, whereas in pteridophytes it is sporophytic. |
| V. | In gymnosperms, male and female gametophytes are present within sporangia located on sporophyte. |
1. I, III and IV
2. II, III and IV
3. I, IV and V
4. II, III and V
Select the mismatch
|
(1) |
Pinus |
Dioecious |
|
(2) |
Cycas |
Dioecious |
|
(3) |
Salvinia |
Heterosporous |
|
(4) |
Equisetum |
Homosporous |
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