Which of the following statement is correct for Deuteromycetes?
1. | A large number of them are decomposers of litter, but do not help in mineral cycling |
2. | Mycelium is septate and branched |
3. | They may have three names, one for vegetative stage and two for asexual stage |
4. | Common asexual spore is oidia |
Choose the correct option for the given below figures.
1. Peritrichous bacteria
2. They do not contain both RNA and DNA
3. Presence of non-cellulosic cell wall
4. Presence of cyclosis
In five-kingdom classification, unicellular green algae are included in the kingdom
(1) Metaphyta
(2) Protista
(3) Monera
(4) Metazoa
Cells in some filamentous cynobacteria that are speciallized for nitrogen fixation are called:
1. Phycobilisomes
2. Chromatophores
3. Grana
4. Heterocysts
Select the incorrect statement with respect to fungi
1. | Mycelium is consist of long slender thread like structures called hyphae |
2. | Aseptate and multinucleate hyphae is called coenocytic hyphae |
3. | Dolipore septum is characteristic of class ascomycetes. |
4. | The cell wall is composed of chitin and polysaccharides |
In fungi, asexual reproduction takes place by
1. Fission, conidia and ascospores
2. Conidia, hypnospores and zoospores
3. Conidia, sporangiospores and zoospores
4. Sporangiospores, conidia and basidiospores
Heterocyst in blue-green algae
1. Lacks photosystem- I
2. Are specialised cells for photosynthesis
3. May perform reproduction
4. Performs nitrogen fixation in anaerobic condition
Members of the chrysophytes
1. Are macroscopic planktons
2. Are present in freshwater as well as in marine water
3. Have stiff cellulose plates on the outer surface
4. Cause PSP in human beings
Chemosynthetic autotrophic bacteria
1. Play a great role in recycling nutrients
2. Oxidises various organic substance
3. Release due to involvement of OEC
4. Are most abundant in nature
Neurospora, Ustilago and Agaricus are similar in presence of ____________ during sexual life cycle
1. Endogenous megaspore
2. Dikaryophase
3. Esogenous meiospore
4. Basidiocarp