An alga which can be employed as food for human beings:
1. Ulothrix
2. Chlorella
3. Spirogyra
4. Polysiphonia
1. | Cycas | 2. | Equisetum |
3. | Psilotum | 4. | Pinus |
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
Which one of the following is the correct statement?
1. | Pteridophyte gametophyte has a protonemal and leafy stage |
2. | In gymnosperms, female gametophyte is free-living |
3. | Antheridiophores and protonema are present in pteridophytes |
4. | Origin of seed habit can be traced in pteridophytes |
Mannitol is a sugar alcohol. It is as stored food in:
1. Fucus
2. Gracillaria
3. Chara
4. Porphyra
Male and female gametophytes are independent and free-living in:
1. Mustard
2. Castor
3. Pinus
4. Sphagnum
Mannitol is the stored food in:
1. Chara
2. Porphyra
3. Fucus
4. Gracillaria