Q. No.Who, amongst the following, was the earliest to attempt a more scientific basis of classification?
1.
Aristotle
2.
John Ray
3.
Tournefort
4.
Linnaeus
Kingdom Monera in Whittaker’s Five Kingdom classification is not characterized by:
1. Prokaryote cell type
2. Cellulosic cell wall
3. Absence of nuclear membrane
4. Cellular body organization
Which of the following is not a feature of the members of the class Basidiomycetes?
1. Branched and septate mycelium
2. Asexual spores are generally not formed
3. Vegetative reproduction not seen
4. Dikaryon stage commonly seen
Phylogenetic classification is based on:
| 1. | Morphological similarities | 2. | Physiological similarities |
| 3. | Reproductive similarities | 4. | Evolutionary relationships |
The body of Euglenoids is flexible because of presence of:
| 1. | a cell wall made up of pseudopeptidoglycan |
| 2. | a protein rich pellicle and absence of cell wall |
| 3. | a phosphate ether bonding in phospholipids in cell membrane |
| 4. | lipopolysaccharide layer in the outer cell wall |
As a group the most extensive metabolic diversity is shown by:
| 1. | Bacteria | 2. | Protista |
| 3. | Fungi | 4. | Animals |
Halophiles are archaebacteria adapted to extreme:
| 1. | Hot habitats | 2. | Saline habitats |
| 3. | Marshy habitats | 4. | Cold habitats |
Chemosynthestic autotrophic bacteria:
| I. | Produce ATP by oxidizing inorganic substances |
| II. | Play a great role in recycling nutrients like nitrogen, phosphorus, iron and sulfur |
| 1. | Both I and II are correct | 2. | Only I is correct |
| 3. | Only II is correct | 4. | Both I and II are incorrect |
Identify the incorrect statement regarding true bacteria?
| 1. | As a group, they exhibit maximum metabolic diversity. |
| 2. | Chemosynthetic autotrophic bacteria play a great role in recycling nutrients like nitrogen, phosphorous, iron and sulphur. |
| 3. | Heterotrophic bacteria are the most abundant in nature. |
| 4. | Bacteria reproduce mainly by fission but sometimes under favourable conditions, they produce spores. |
In Whittaker’s Five Kingdom classification, heterotrophic mode of nutrition is present in members of:
| 1. | Two kingdoms | 2. | Three kingdoms |
| 3. | Four kingdoms | 4. | Five kingdoms |
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