Q. No.Five kingdom system of classification suggested by R.H. Whittaker is based on:
1. Complexity of body organisation
2. Mode of reproduction
3. Mode of nutrition
4. All of the above
Which one of the following living organisms completely lacks a cell wall?
1. Cyanobacteria
2. Sea- fan (Gorgonia)
3. Saccharomyces
4. Coelenterata algae
In the five-kingdom classification, Chlamydomonas and Chlorella have been included in:
| 1. | Algae | 2. | Plantae |
| 3. | Monera | 4. | Protista |
Which of the following is a correct statement?
| 1. | Mycoplasma have DNA, Ribosome and cell wall. |
| 2. | Cyanobacteria are a group of autotrophic organisms classified under Kingdom Monera. |
| 3. | Bacteria are exclusively heterotrophic organisms. |
| 4. | Slime moulds are saprophytic organisms classified under Kingdom Monera. |
Which of the following is incorrect about Cyanobacteria?
1. They are photoautotrophs.
2. They lack heterocysts.
3. They often form blooms in polluted water bodies.
4. They have chlorophyll similar to green plants.
Match the organisms in Column-I with habitats in Column-II.
| Column-I | Column-II | ||
| (a) | Halophiles | (i) | Hot springs |
| (b) | Thermoacidophiles | (ii) | Aquatic environment |
| (c) | Methanogens | (iii) | Guts of ruminants |
| (d) | Cyanobacteria | (iv) | Salty areas |
Select the correct answer from the options given below:
| Options: | (a) | (b) | (c) | (d) |
| 1. | (iv) | (i) | (iii) | (ii) |
| 2. | (i) | (ii) | (iii) | (iv) |
| 3. | (iii) | (iv) | (i) | (i) |
| 4. | (ii) | (iv) | (iii) | (i) |
Which of the following are found in extreme saline conditions?
| 1. | Archaebacteria | 2. | Eubacteria |
| 3. | Cyanobacteria | 4. | Mycobacteria |
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 |
1. thermoacidophiles
2. methanogens
3. eubacteria
4. halophiles
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