Which bacteria usually lack flagella?
Correct answer B. Cocci
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Biology MCQs
Page 41 of Biology multiple-choice questions with answers. Tap an option to check yourself.
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Which structure carries genes for drug and disease resistance in bacteria?
Correct answer A. Plasmid
What is a common waste product of bacteria?
Correct answer A. Lactic acid
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Which of these bacteria needs only a low concentration of oxygen?
Correct answer D. Campylobacter
Purple non-sulphur bacteria are an example of which type of bacteria?
Correct answer C. Photosynthetic bacteria
What are bacteria that depend entirely on their host for nutrition called?
Correct answer B. Parasitic bacteria
Nitrifying bacteria are examples of which type of bacteria?
Correct answer A. Chemosynthetic bacteria
E. coli is an example of which type of bacterium?
Correct answer A. Facultative bacteria
What kind of bacterium is a spirochete?
Correct answer B. Anaerobic bacteria
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In which phase of bacterial growth does rapid, exponential growth occur?
Correct answer A. Log phase
What are chemical substances applied to living tissue to inhibit microbial growth called?
Correct answer D. Antiseptics
Who developed a vaccine against anthrax?
Correct answer A. Louis Pasteur
What type of cell wall do cyanobacteria have?
Correct answer B. Gram-negative
What helps cyanobacteria move?
Correct answer A. Gas vesicles
How do cyanobacteria reproduce?
Correct answer A. Binary fission
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Approximately how many species of bacteria are known to cause disease in humans?
Correct answer B. 200
What is a cubical group of eight cocci called?
Correct answer C. Sarcina
Which bacteria are thick, rigid and spiral in shape?
Correct answer D. Spirillum
Which was the first bacterium to be isolated?
Correct answer B. Bacillus
What is the shape of a coccobacillus similar to?
Correct answer A. Egg