Q. No.Which, among the following, are the smallest living cells, known without a definite cell wall, pathogenic to plants as well as animals and can survive without oxygen?
1.
Pseudomonas
2.
Mycoplasma
3.
Nostoc
4.
Bacillus
Chrysophytes, euglenoids, dinoflagellates and slime moulds are included in the kingdom:
| 1. | Protista | 2. | Fungi |
| 3. | Animalia | 4. | Monera |
Which one of the following statements is wrong?
| 1. | Golden algae are also called desmids |
| 2. | Eubacteria are also called false bacteria. |
| 3. | Phycomycetes are also called algal fungi. |
| 4. | Cyanobacteria are also called blue-green algae. |
| 1. | peptidoglycan | 2. | cellulose |
| 3. | hemicelluloses | 4. | chitin |
Which of the following statements is wrong for viroids?
1. They are smaller than viruses
2. They cause infections
3. Their RNA is of high molecular weight
4. They lack a protein coat
The imperfect fungi which are decomposers of litter and help in mineral cycling belong to?
1. Deuteromycetes
2. Basidiomycetes
3. Phycomycetes
4. Ascomycetes
Select the wrong statement:
| 1. | The viroids were discovered by D.J lvanovsky. |
| 2. | W.M. Stanley showed that viruses could be crystallized. |
| 3. | The term 'contagium vivum fluidum' was coined by MW Beijerinck. |
| 4. | Mosaic disease in tobacco and AIDS in human beings are caused by viruses. |
Choose the wrong statement:
| 1. | Penicillium is multicellular and produces antibiotics. |
| 2. | Neurospora is used in the study of biochemical genetics. |
| 3. | Morels and truffles are poisonous mushrooms. |
| 4. | Yeast is unicellular and useful in fermentation. |
In which group of organisms the Cell walls form two thin overlapping shells which fit together?
| 1. | Chrysophytes | 2. | Euglenoids |
| 3. | Dinoflagellates | 4. | Slime moulds |
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