481 Cyanobacteria have ________ cell wall? Biology Medium Full question → A Gram +ve. B Gram – ve. C Acid fast D Cellulose rich
482 Which of the following help cyanobacteria to locomote? Biology Medium Full question → A Flagella B Gas vesicles C Both of these D None of these
483 Cyanobacteria reproduce by____________? Biology Medium Full question → A Binary fission B Mitosis C Meiosis D Conjugation
484 Approximately _____ species of bacteria are known to cause diseases in humans. Biology Medium Full question → A 100 B 200 C 300 D 400
485 A group of 8 cocci is called______________? Biology Medium Full question → A Diplococci B Octococci C Tetrad D Sarcina
486 Which of the following bacteria are thick rigid and spiral______________? Biology Medium Full question → A Vibrio B Spirillum C Spirochete D Coccus
487 The first bacterium isolated was_________________? Biology Medium Full question → A Coccus B Bacillus C Vibrio D Spirochete
488 Coccobacillus has a shape similar to________________? Biology Medium Full question → A Diplobacillus B Sarcina C Egg D None of these
489 Some bacteria ranging occasionally a size of 500 ?m in length are___________________? Biology Medium Full question → A Escherichia coli B Spirochetes C Mycoplasma D Epulopiscuim
490 Germ theory of disease has________________postulates? Biology Medium Full question → A 3 B 5 C 4 D 6
491 In bacterial categories the bacteria smaller in number are_______________? Biology Medium Full question → A Gram-ive bacteria B Eubacteria C Ancient bacteria D Gram +ive bacteria
492 E. coli and example of entrobacteriace is important for causing diarrheal diseases its size is____________? Biology Medium Full question → A 0.1-600 um B 100-200 nm C 1.1-1.5 um (width) 2.0-6.0 um (length) D 0.75-1.25 um
493 The size of Spirochete is_____________? Biology Medium Full question → A 0.1 -600 um B 100-200 nm C 500 um D 0.75-1.25 um
494 Which of the following structure is not present in all the bacteria_____________? Biology Medium Full question → A Cell membrane B Chromatin bodies C Ribosomes D Capsule
495 Which of the following statement is incorrect regarding germ theory of diseases postulated by Robert Koch_____________? Biology Medium Full question → A A specific organism can always be found in association with a given disease B The organism can be isolated and grown in pure culture in the laboratories C The pure culture cannot produce the disease when inoculated into susceptible animal however the causative organism isolated from pure culture can do so. D It is possible to recover the organism in pure culture from the experimentally infected animals
496 Who discovered the bacteria causing tuberculosis and also developed various techniques of media preparation and maintenance of pure culture_____________? Biology Medium Full question → A Robert Koch B Louis Pasteur C Alexander Fleming D Leeuwenhoek
497 Who coined the term Animalcules for microorganisms like Bacteria and protozoa______________? Biology Medium Full question → A Robert Koch B Louis Pasteur C Alexander Fleming D Leeuwenhoek
498 The word Archaeobacteria (a division of bacteria) derived from Greek means___________? Biology Medium Full question → A True bacteria B False bacteria C Recent bacteria D Ancient bacteria
499 In which of the following pigments major energy reserves and cell wall are like plants? Biology Medium Full question → A Rhodophyta B Chlorophyta C Phaeophyta D Chrysophyta
500 Which of the following statement is incorrect about algae______________? Biology Medium Full question → A Their zygote unlike plants is protected by parental tissue B Their classification is based on pigment composition C Most of them have different morphological forms in-different stages of their life cycle D Almost all of them are aquatic