|I.||Mosses and lichens are the first organisms to colonise 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 sporophytes.
|1.||I, III and IV||2.||II, III and IV|
|3.||I, IV and V||4.||II, III and V|
Which one of the following statements is wrong?
1. Algin and carrageenan are products of algae
2. Agar-agar is obtained from Gelidium and Gracilaria
3. Chlorella and Spirulina are used as space food
4. Mannitol is stored food in Rhodophyceae
Male gametes are flagellated in:
Which one of the following shows isogamy with non-flagellated gametes?
Which of the following is responsible for peat formation?
An alga which can be employed as food for human beings:
Monoecious plant of Chara shows the occurrence of:
|1.||Stamen and carpel of the same plant|
|2.||upper antheridium and lower oogonium on the same plant|
|3.||upper ooganium and lower antheridium on the same plant|
|4.||antheridiophore and archegoniophore on the same plant|
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 hetero-sperms|
|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?