Biological Classification

Q1. Interferons are:

1. Antiviral protein.
2. Antibacterial proteins.
3. Anticancer proteins.
4. Complex proteins.

Q2. Plasmodium, the malarial parasite, belongs to class:

1. Sarcodina.
2. Ciliata.
3. Sporozoa.
4. Dinophyceae.

Q3. Phenetic classification is based on:

1. Sexual characteristics.
2. The ancestral lineage of existing organisms
3. Dendograms based on DNA characteristics.
4. Observable characteristics of existing organisms.

Q4. An association between roots of higher plants and fungi is called.

1. Lichen.
2. Fern.
3. Mycorrhiza.
4. BGA.

Q5. What may be a ‘photosynthetic protistian’ to one biologist may be ‘a plant’ to another? Which of the given below
features of slime moulds shows linkage with plant?

1. Formation of fruiting bodies.
2. Slime moulds have cellulosic spore wall.
3. Presence of holozoic nutrition.
4. Presence of diverse sexual reproduction.

Q6. Decomposers are organisms that:

1. Elaborate chemical substances, causing death of tissues.
2. Operate in living body and simplifying organic substances of cells step by step.
3. Attack and kill plants as well as animals.
4. Operate in relay terms, simplifying step by step the organic constituents of dead body

Q7. Who was the first scientist to classify living beings?

1. Aristotle Hac.
2. Linnaeus.
3. Whittaker.
4. Robert Hook.

Q8. If a scientist has to names a similar species, he should study the:

1. Holotype.
2. Syntype.
3. Mesotype.
4. Isotype.

Q9. The main difference in Gram (+) ve and Gram (-) ve bacteria resides in their:

1. Cell wall.
2. Cell membrane.
3. Cytoplasm.
4. Flagella.

Q10. Bacteria is a group of prokaryotic organisms which is characterized by:

1. Simple structure and complex behavior.
2. 70 S ribosomes.
3. Peptidoglycan cell wall.
4. All of the above.

Q11. Choose the correct match.

1. Photosynthetic autotrophs – Nutrient recycling.
2. Chemosynthetic autotrophs – Nitrogen fixation.
3. Heterotrophic bacteria – Production of antibiotics.
4. Mycoplasma – Production of curd.

Q12. Which of the following statement about Mycoplasma is true:

1. They differ from viruses in being cellular in organisation.
2. Insensitive to several antibiotics as they have 70S ribosomes.
3. They can survive without photosynthetic pigments and genetic material.
4. They are smallest, disease causing thin walled organisms

Q13. Which of the following is the correct sequence in the order of increasing complexity?

1. Molecules Tissues Community Population
2. Cells Tissues Community Population
3. Tissues Organisms Population Community
4. Molecules Tissues Community Cells.

Q14. The term antibiotic was first used by:

1. Fleming.
2. Pasteur.
3. Waksman.
4. Lister.

Q15. Genophore bacterial genome or nucleoid is made of:

1. Histones and nonhistones.
2. RNA and histones.
3. A single double stranded DNA.
4. A single stranded DNA.

Q16. According to five-kingdom classification, which of the following does not contain nuclear membrane?

1. Protista.
2. Monera.
3. Fungi.
4. Animalia.

Q17. Non-symbiotic nitrogen fixers are:

1. Azotobacter.
2. Pseudomonas.
3. Soil fungi.
4. Blue-green algae.

Q18. In which one of the following pairs of diseases both are caused by viruses?

1. Tetanus and typhoid.
2. Whooping cough and sleeping sickness.
3. Syphilis and AIDS.
4. Measles and rabies.

Q19. Which of the following organisms is a good indicator of pollution in an environment?

1. Bacteria.
2. Fungus.
3. Algae.
4. Lichens.

Q20. Most common type of genetic material present in bacteriophages is:

1. DS DNA.
2. DS RNA
3. SS RNA.
4. SS DNA.

Q21. Binomial nomenclature means:

1. One name given by two scientists.
2. One scientific name consisting of a generic and a specific name.
3. Two names, one Latinised, other of a person.
4. None of the above.

Q22. Species is:

1. Basic unit of classification.
2. Unit in the evolutionary history of a tree.
3. Specific class of evolution.
4. Not related to evolution.

Q23. Claviceps purpurea is causal organism of:

1. Smut of barley.
2. Rust of wheat.
3. Ergot of rye.
4. Powdery mildew of pea.

Q24. In five kingdom system, the main basis of classification is:

1. Structure of nucleus.
2. Asexual reproduction.
3. Mode of nutrition.
4. Structure of cell wall.

Q25. Escherichia coli is used extensively in biological research as it is:

1. Easily cultured.
2. Easily available.
3. Easy to handle.
4. Easily multiplied in host.

Q26. Human Immunodeficiency Virus (HIV) has a protein coat and a genetic material which is:

1. Single-stranded DN.
2. Single-stranded RNA.
3. Double-stranded RNA.
4. Double-stranded DNA.

Q27. Viruses are no more “alive” than isolated chromosomes because?

1. Both require the environment of a cell to replicate.
2. They require both RNA and DNA.
3. They both need food molecules.
4. They both require oxygen for respiration.

Q28. The term “Phylum” was given by:

1. Cuvier.
2. Haeckel.
3. Theophrastus.
4. Linnaeus.

Q29. In which kingdom would you classify the archaebecteria and nitrogen-fixing organisms. If the five-kingdom system
of classification is used?

1. Monera.
2. Fungi.
3. Plantae.
4. Protista.

Q30. Naked cytoplasm, multinucleated and saprophytic are the characteristics of:

1. Monera.
2. . Protista.
3. Fungi.
4. Slime moulds.

Q31. Nitrogen fixer soil organisms belong to:

1. Mosses.
2. Bacteria.
3. Green algae.
4. Soil fungi

Q32. Entamoeba coli causes:

1. pyorrhoea.
2. diarrhoea.
3. dysentery.
4. None of these.

Q33. Tobacco Mosaic Virus (TMV) genes are.

1. Double-stranded RNA.
2. Single-stranded RNA.
3. Polyribonucleotides.
4. Proteinaceous.

Q34. Which of the following is not a viral disease?

1. AIDS.
2. Herpes.
3. Tuberculosis.
4. Smallpox

Q35. The part of the life cycle of the malarial parasite Plasmodium vivax, that is passed in female Anopheles is:

1. Sexual cycle.
2. Pre-erythrocytic schizogony.
3. Exo-erythrocytic schizogony.
4. Post-erythrocytic schizogony

Q36. Interferons are synthesized in response to:

1. Mycoplasma.
2. Bacteria.
3. Viruses.
4. Fungi

Q37. Which is the most acceptable system of biological classification?

1. Two Kingdom Classification.
2. Three Kingdom Classification.
3. Five Kingdom Classification.
4. Six Kingdom Classification.

Q38. Eubacteria can be differentiated from archaebacteria on the basis of:

1. Nutrition.
2. Ribosomes.
3. Gene of tRNA.
4. Cell wall.

Q39. The practical purpose of classification of living organisms is to:

1. Facilitate identification of unknown organisms.
2. Name the living organisms.
3. Trace the evolution of living organisms.
4. Explain the origin of living organisms.

Q40. In Amoeba and Paramecium osmoregulation occurs through:

1. Pseudopodia.
2. Nucleus.
3. Contractile vacuole.
4. General surface.