Everyday Science MCQs

5120 MCQs  (Page 114 of 512)

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Which of the following bacteria are thick rigid and spiral______________?
A. Vibrio
B. Spirillum
C. Spirochete
D. Coccus
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A group of 8 cocci is called______________?
A. Diplococci
B. Octococci
C. Tetrad
D. Sarcina
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Approximately _____ species of bacteria are known to cause diseases in humans.
A. 100
B. 200
C. 300
D. 400
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Cyanobacteria reproduce by____________?
A. Binary fission
B. Mitosis
C. Meiosis
D. Conjugation
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Which of the following help cyanobacteria to locomote?
A. Flagella
B. Gas vesicles
C. Both of these
D. None of these
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Cyanobacteria have ________ cell wall?
A. Gram +ve.
B. Gram – ve.
C. Acid fast
D. Cellulose rich
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Who developed the vaccine against anthrax?
A. Louis pasteur
B. Edward jennar
C. Leuvenhoek
D. Alexander fleming
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Chemical substances used on living tissues that inhibit the growth of micro organism are called___________?
A. Antiseptics
B. Disinfectants
C. Antibiotics
D. Vaccines
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Rapid growth at exponential ration occurs in which phase of bacterial growth:
A. Lag phase
B. Log phase
C. Stationary phase
D. Death / decline phase
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Spirochete is an example of___________?
A. Aerobic bacteria
B. Anaerobic bacteria
C. Facultative bacteria
D. Microaerophilic
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Word of the Day
22 Jul
Combative
ready or eager to fight or argue.
لڑاکا، متنازع، جھگڑالو

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