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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
251. |
Many bacteria possess hairy appendages on their cell walls. They areA. HairsB. FlagellaC. CiliaD. Fimbriae. |
Answer» Correct Answer - D | |
252. |
Pili are appendages ofA. MycoplasmaB. BacteriaC. VirusesD. Algae. |
Answer» Correct Answer - B | |
253. |
Basteria and other monerans do not prossessA. RibosomesB. MitochondriaC. Plasma membraneD. Nucleoid. |
Answer» Correct Answer - B | |
254. |
Monerans bearing conidia for reproduction belong toA. EubacteriaB. ArchaebacteriaC. ActinomycetesD. Mycoplasma. |
Answer» Correct Answer - C | |
255. |
Bacterial reproduction isA. Only asexualB. Only sexualC. Mostly asexualD. Mostly sexual. |
Answer» Correct Answer - C | |
256. |
It is important to boil surgical instruments before using them in an operation . It is doneA. To kill all the pathogen which may be infecting the instrumentsB. To facilitate the handling of the instruments by the doctorC. To enable the patient feel warm and comfortable at the time of oprationD. To kill all the pathogens present at the place of operation of the patient. |
Answer» Correct Answer - A | |
257. |
Which statement is correct ?A. All bacteria are autotrophicB. All bacteria are heterotrophicC. All bacteria are photosyntheticD. Mostly bacteria are heterotrophic but some are autotrophic. |
Answer» Correct Answer - D | |
258. |
The most primitive of monerans areA. RickettsiaeB. ActinomycetesC. ProgenoteD. Archaebacteria. |
Answer» Correct Answer - D | |
259. |
Bacteria are considered primitive organisms because theyA. Are small, microscopic plants, which cannot be seen by naked eyeB. Cause serious diseases in human beings, domesticated animals and crop plantsC. Produce endospores which are very resistant to adverse conditionsD. |
Answer» Correct Answer - D | |
260. |
Bacteria were regarded to be plants becauseA. Some of them are greenB. They are present every whereC. Some of them cannot moveD. They have a rigid cell wall. |
Answer» Correct Answer - D | |
261. |
Bacteria are considered as plants, becauseA. Are green in colourB. Have rigid cell wallC. Have chlorophyllD. Have stomata. |
Answer» Correct Answer - B | |
262. |
Disease associated with secretion of toxin isA. TetanusB. T.B.C. Food poisoningD. AIDS. |
Answer» Correct Answer - A | |
263. |
Which is source of Vitamin `B_(12)`A. PseudomonasB. SpirulinaC. NostocD. Oscillatoria |
Answer» Correct Answer - B | |
264. |
Which of the following amino acid is present only in bacteria and BGAA. Muramic acidB. MethionineC. Glutamic acidD. Diaminopimelic acid |
Answer» Correct Answer - D | |
265. |
Which of the following amino acid is present only in bacteria and BGAA. GlycineB. TyrosineC. Glutamic acidD. Diaminopimelic acid |
Answer» Correct Answer - D | |
266. |
Cyanobacteri areA. SaprotrophsB. PhotoautophsC. PhotoautotrophsD. Chemoautotrophs |
Answer» Correct Answer - c | |
267. |
Terramycin is obtained fromA. Streptomyces rimosusB. Streptomyces griseusC. Streptomyces venezuelaeD. Streptomyces aureofaciens. |
Answer» Correct Answer - A | |
268. |
Little leaf of brinjal is caused byA. AlgaB. FungusC. MycoplasmaD. Bacterium. |
Answer» Correct Answer - C | |
269. |
Gram positive bacteria differ from Gram negative bacteria in the structure of theirA. Nucleoid// genophoreB. CytoplasmC. Cell wallD. Ribosomes. |
Answer» Correct Answer - C | |
270. |
Bacteria differ from plants in that they do not haveA. DNAB. RNAC. Cell wallD. A well defined nucleus. |
Answer» Correct Answer - D | |
271. |
Milk is spoiled//fermented//curdled byA. RhizobiumB. LactobacillusC. AzotobacterD. Clostridium. |
Answer» Correct Answer - B | |
272. |
Mycoplasma differs from becteria in the absence ofA. DNAB. RibosomeC. Cell membraneD. Cell wall. |
Answer» Correct Answer - D | |
273. |
Bacteria differ from viruses inA. Pathogenic natureB. Genetic materialC. Having well defined cytoplasmD. Lacking proper nucleus. |
Answer» Correct Answer - C | |
274. |
Genes for antibiotic resistance as found in bacteria are located onA. NucleiodB. PlasmidC. ChondrioidD. Plastid. |
Answer» Correct Answer - B | |
275. |
Broad spectrum antibiotic is that whichA. Acts on a variety of pathogenic microbesB. Is effective in very small amountC. Acts on both pathogen and hostD. Is effective against all bacteria and viruses. |
Answer» Correct Answer - A | |
276. |
An antibiotic isA. ChloramphenicolB. EthephonC. Phosphon-DD. AMO-1618. |
Answer» Correct Answer - A | |
277. |
In cyanobacteria, reproduction isA. VegetativeB. Asexual and vegetativeC. Asexual and sexualD. Sexual. |
Answer» Correct Answer - B | |
278. |
The nitrifying bacteria areA. PhotoautotrophicB. ChemosyntheticC. SaprpphyticD. Parasitic. |
Answer» Correct Answer - B | |
279. |
Which of the following is not an antibioticA. Citric acidB. StreptomycinC. CephalosporinD. Griseofulvin. |
Answer» Correct Answer - A | |
280. |
During rainy seasons, the ground becomes slippery due to dense growth ofA. MossB. Brown AlgaeC. Green AlgaeD. Blue- Green Algae |
Answer» Correct Answer - D | |
281. |
Cyanobacteria are// Nostoc isA. Oxygenic with nitrogenaseB. Oxygenic without nitrogenaseC. Non- oxygenic with nitrogenaseD. Non-oxygenic without nitrogenase |
Answer» Correct Answer - A | |
282. |
Nitrogenase enzyme is found in Nostoc in the cell ofA. Vegetative cellsB. HeterocystsC. Both A and BD. Only in hormogones. |
Answer» Correct Answer - B | |
283. |
Transfer od DNA from one bacterium to another through cell contact isA. TransformationB. TransductionC. ConjugationD. Transcription. |
Answer» Correct Answer - C | |
284. |
Cyanobacteria of great nutritive value isA. GloeocapsaB. ScytonemaC. StigonemaD. Spirulina |
Answer» Correct Answer - D | |
285. |
How many basal body rings are present in gram (+)ve cellsA. `3`B. `2`C. `4`D. `5`. |
Answer» Correct Answer - B | |
286. |
Which part of the cell can contain N- acetylglucosamineA. Cell envelopeB. Cell wallC. NucleusD. Ribosomes. |
Answer» Correct Answer - B | |
287. |
They can be surrounded by single layer membraneA. Sulphur granulesB. Glycogen granulesC. Phosphate granulesD. Cyanophycean granules. |
Answer» Correct Answer - A | |
288. |
They help in respiration , They help in cell wall formation They help in DNA replication , They increase surface area of plasma membrane. They are prokaryotic structures.A. ChromosomesB. RibosomesC. MesosomesD. Lysosomes. |
Answer» Correct Answer - C | |
289. |
Bacteria have cell membrane made ofA. ChitinB. CelluloseC. Proteins and phospholipdsD. Fats. |
Answer» Correct Answer - C | |
290. |
Streptococcus is used in preparation ofA. WineB. IdliC. CheeseD. Bread. |
Answer» Correct Answer - C | |
291. |
Which one is not matchedA. Streptomyces- AntibioticB. Serratia- Drug addictionC. Rhizobium -BiofertilizerD. Spirulina-Single cell protein. |
Answer» Correct Answer - B | |
292. |
Azolla has a symbiotic relationship withA. ChlorellaB. AnabaenaC. NostocD. Tolypotheix |
Answer» Correct Answer - B | |
293. |
The most well studied bacterial- plant relationship is that ofA. Cyanobacterial symbiosis with some aquatic fernsB. Nodulation in Sesbania stemC. Gall formation by AgrobacteriumD. Growth stimulation by Phosphate bacteria. |
Answer» Correct Answer - C | |
294. |
A membranous coiled semicircular structure attached to plasma membrane and found in blue -green algae is calledA. LamellasomeB. LomasomeC. MesosomeD. Microsome. |
Answer» Correct Answer - A | |
295. |
The fixation of free nitrogen by bacteria in the soil is done byA. AzotobacterB. NitrosomonasC. NitrobacterD. Thiobacillus. |
Answer» Correct Answer - A | |
296. |
Genophore// bacterial genome or nucleoid is made ofA. Histones and non -histinesB. RNA and histonesC. A single double stranded DNAD. A single stranded DNA. |
Answer» Correct Answer - C | |
297. |
Multicellular fragment of a blue green alga capable of growth into new plant isA. HormocystB. TrichomeC. TrichogyneD. Hormogonium. |
Answer» Correct Answer - D | |
298. |
Blue-green alga that causes red bloom isA. AnabaenaB. GleocapsaC. TrichodesmiumD. Nostoc. |
Answer» Correct Answer - C | |
299. |
Chain of rod shaped bacteria isA. StreptococcusB. StreptobacillusC. StaphylococcusD. Staphylobacillus |
Answer» Correct Answer - B | |
300. |
Rod- shaped bacteria are calledA. CoccusB. SpirillumC. BacillusD. Actinomycetes. |
Answer» Correct Answer - C | |