The imperfect fungi which are decomposer of litter and help in mineral cycling belong to:
1. | Basidiomycetes | 2. | Phycomycetes |
3. | Ascomycetes | 4. | Deuteromycetes |
Choose the wrong statement:
1. | Neurospora is used in the study of biochemical genetics |
2. | Morels and truffles are poisonous mushrooms |
3. | Yeast is unicellular and useful in fermentation |
4. | Penicillium is multicellular and produces antibiotics |
Which one of the following statements is wrong?
1. Phycomycetes are also called algal fungi.
2. Cyanobacteria are also called blue-green algae.
3. Golden algae are also called desmids.
4. Eubacteria are also called false bacteria.
Chrysophytes, Euglenoids, Dinoflagellates and slime moulds are included in the kingdom:
1. Animalia
2. Monera
3. Protista
4. Fungi
One of the major components of cell wall of most fungi is :
1. Hemicelluloses
2. Chitin
3. Peptidoglycan
4. Cellulose
The primitive prokaryotes responsible for the production of biogas from the dung of ruminant animals, include the:
1. Eubacteria
2. Halophiles
3. Thermoacidophiles
4. Methanogens
Which of the following statements is wrong for viroids?
1. Their RNA is of high molecular weight
2. They lack a protein coat
3. They are smaller than viruses
4. They cause infections
Methanogens belong to
1. Slime moulds
2. Eubacteria
3. Archaebacteria
4. Dinoflagellates
Select the wrong statement.
1. | Diatoms are microscopic and float passively in water. |
2. | The walls of diatoms are easily destructible. |
3. | ‘Diatomaceous earth’ is formed by the cell walls of diatoms. |
4. | Diatoms are chief producers in the oceans. |
Select the mismatch.
1. Methanogens-Prokaryotes
2. Gas vacuoles-Green bacteria
3. Large central vacuoles-Animal cells
4. Protists-Eukaryotes