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 |
In ferns, Meiosis takes place at the time of:
1. Spore formation
2. Spore germination
3. Gamete formation
4. Antheridia and archegonia formation
A student observed algae with chlorophyll 'a', 'd', and phycoerythrin. It should belong to:
1. | Phaeophyta | 2. | Rhodophyta |
3. | Chlorophyta | 4. | Bacillariophyta |
Which one of the following pairs of plants are not seed producers:
1. Fern and Funaria
2. Funaria and Ficus
3. Ficus and Chlamydomonas
4. Punica and Pinus
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 |
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 |
Selaginella and Salvinia are considered to represent a significant step towards the evolution of seed habit because:
1. | Embryo develops in female gametophyte which is retained on parent sporophyte. |
2. | Female gametophyte is free and gets dispersed like seeds. |
3. | Female gametophyte lacks archegonia. |
4. | Megaspores possess endosperm and embryo surrounded by a seed coat. |
Examine the figure given below and select the right option giving all the four parts (A, B, C and D) correctly identified:
A | B | C | D | |
1. | Antheridiophore | Male thallus | Globule | Roots |
2. | Archegoniophore | Female thallus | Gemma cup | Rhizoids |
3. | Archegoniophore | Female thallus | Bud | Foot |
4. | Seta | Sporophyte | Protonema | Rhizoids |
Examine the figures A, B, C and D. In which one of the four options all the items, A, B, C and D are correct?
Options :
A | B | C | D | |
1. | Equisetum | Ginkgo | Selaginella | Lycopodium |
2. | Selaginella | Equisetum | Salvinia | Ginkgo |
3. | Funaria | Adiantum | Salvinia | Riccia |
4. | Chara | Marchantia | Fucus | Pinus |
Which one of the following pairs is wrongly matched?
1. Salvinia - Prothallus
2. Viroids – RNA
3. Mustard-Synergids
4. Ginkgo-Archegonia