biological classification neet questions

BIOLOGICAL CLASSIFICATION TRUE OR FALSE (T or F)

1. Three domain system divides the Kingdom Monera into two domains, leaving the remaining eukaryotic kingdoms in the third domain and thereby a six kingdom classification. ___________
2. In biological classification- R.H Whittaker (1969) proposed a five kingdom classification on the basis of criteria including cell wall composition , mode of nutrition , reproduction body organisation and phylogenetic. _____________
3. Bacteria as a group show the most extensive metabolic diversity.____________
4. Bacterial structure is very complex but they are very simple in behaviour. ___________
5. Two kingdom system did not distinguish between the eukaryotes and prokaryotes, unicellular and multicellular organisms and photosynthetic and non-photosynthesis organisms.__________
6. Heterotrophic bacteria are are helpful in making curd from milk, production of antibiotics, fixing nitrogen in legume roots, etc. _________
7. Halophiles are present in the gut of several ruminant animlas such as cows and buffaloes.________
8. Archaebacteria differ from other bacteria in having different cell wall structure and this featureis responsible for their survival in extreme condition.__________
9. Cyanobacteria are photosynthetic autotrophs. They often from blooms in fresh water bodies._______
10. Cyanobacteria have chlorophyll a similar to green plants._______
11. Mycoplasma are smallest living cells known and cannot live without oxygen.________
12. Diatoms are the “chief producers” in the oceans.__________
13. Nastoc and Anabaena play a great role in recycling nurients as they can oxidies nitrate and ammonia._______
14. Chrysophytes are planktons and float passively in water current._________
15. Euglenoids may behave a heterotroph by predating on other small organisms._______
16. Spores of slime moulds posses true walls, they are extremely resistant and are disperesed by air currents._________
17. The pigments of Euglenoids are identical to those present in higher plants._________
18. Ciliated protozoans have a cavity that opens to the outside of cell surface.__________
19. During unfavourable conditions, slims moulds from an aggregation called plasmodium._________
20. The morphology and mode of formation of spores and fruiting bodies from the basis for the division of the kingdom in various classes.________
21. Marine forms of amoeboid protozoans have silica shells on their surface._______
22. Sexual spores, ascospores are exogenously produced and are arranged in fruiting bodies called ascocarps.__________
23. Fungi may live as saprophyte, parasite or symbiont._________
24. In basidiomycetes, asexual spores are generally not found, but vegetable reproduction by fragmentation is common.___________
25. Fungi reproduce asexually by spores called conidia, zoospores or sporangiosproes produced in distinct structures called fruiting bodies.__________
26. Some members of deuteromycetes are decomposers while large number of them are parasites.________
27. In phycomycetes, asexual reproduction takes place by motile zoospores._________
28. Claviceps is used extensively in biochemical and genetic work.__________
29. Viruses are cellular organisms and are considered as truly living._________
30. Morels and truffles are edible and are considered delicacies.________
31. In basidiomycetes, sex organs are absent but plasmogamy is brought about by fusion of two vegetative cells or somatic cells of different strains or genotype.________
32. Deuteromycetes are commonly known as imperfect fungi because only the asexual or vegetative phases of these fungi are known.________
33. A few members of Kingdom Plantae are partially hetrotrophic, such as venus fly trap and Cuscuta._________
34. A single virus contains proteins and genetic materials i.e both DNA and RNA._________
35. Diseases like mumps, small pox, herpes and influenza are bacterial diseases._________
36. Bacterial viruses or bacteriophages are usually double stranded DNA viruses.________
37. Lichens are symbiotic association between algae and fungi. The algal component is known as phycobiont and fungal component as mycobiont.__________
38. Viroids are smaller than viruses and are infectious proteinaceous agents._________
39. Prions are similar in size to viruses and are abnormally folded proteins._________
40. Algae prepare food for fungi and fungi fix atmospheric nitrogen in lichens.__________

ANSWER

1.T, 2.T, 3.T, 4.F, 5.T, 6.T, 7.F, 8.T, 9.F, 10.T, 11.F, 12.T, 13.F, 14.T, 15.T, 16.T, 17.T, 18.T, 19.F, 20.T, 21.T, 22.F, 23.T, 24.T, 25.F, 26.F, 27.T, 28.F, 29.F, 30.T, 31.T, 32.T, 33.F, 34.F, 35.F, 36.T, 37.T, 38.F, 39.T, 40.F

QUOTE:- “ I HAVE FAILED. I’VE JUST FOUND 10,000 WAYS THAT WON’T WORK.”- THOMAS EDISON.