Water is essential for Bryophyta:
1. | For fertilization and homosporous nature |
2. | Water should be filled in the archegonium for fertilization |
3. | Water is necessary for the movement of sperm |
4. | For the dissemination of spores |
A true statement for Ulothrix:
1. | Filamentous thallus and flagellated reproductive structures |
2. | Branched thallus |
3. | Flagellated cells absent |
4. | None of the above |
Which statement is wrong for Cycas:
1. Xylem have vessels
2. Female flowers well developed
3. It has coralloid roots
4. Circinate ptyxis
Largest sperm is of:
1. Pinus
2. Cycas
3. Ephedra
4. Sequoia
Walking fern, a name of Adiantum is due to:
1. Dispersal by animals
2. Reproduction by spores
3. Vegetative reproduction
4. Power of locomotion
Transfusion tissue is present in the leaves of:
1. Pinus
2. Dryopteris
3. Cycas
4. Both (1) and (3)
In oogamy, fertilization involves:
1. | A large non-motile female gamete and a small motile male gamete |
2. | A large non-motile female gamete and a small non-motile male gamete |
3. | A large motile female gamete and a small non-motile male gamete |
4. | A small non-motile female gamete and a large motile male gamete |
Which one of the following is a living fossil:
1. Moss
2. Saccharomyces
3. Spirogyra
4. Cycas
Which of the following statement is true for bryophyta:
1. | Along with water absorption roots also provide anchorment to plants |
2. | Sporophyte is dominant |
3. | Gametophyte is dominant and sporophyte is mostly parasitic |
4. | Gametophyte is parasitic |
Which of the following propagates through the leaf tip:
1. Sprout-leaf plant
2. Marchantia
3. Moss
4. Walking fern