Biology MCQs

Biology

Prokaryotes


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#25 The pneumococcus strain used by Griffith in his experiments was;

A) Lophotrichous B) Amphitrichous C) Atrichous D) Monotrichous

Answer:   C
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#26 Salmonella typhi is a;

A) Coccus bacterium B) Bacllius bacterium C) Spirillus bacterium D) Nitrobacterium

Answer:   B
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#27 Which of the following diseases is NOT caused by bacteria?

A) Tetanus B) Small pox C) Tuberculosis D) Diphtheria

Answer:   B
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#28 All of the following are bacterial diseases except;

A) Cholera B) Tuberculosis C) Typhoid D) Poliomyelitis

Answer:   D
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#29 Milk sugar is pasteurized by heating for 15 seconds at the temperature of:

A) 60 °C B) 71 °C C) 50 °C D) 80 °C

Answer:   B
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#30 Milk is a pasteurized by heating at;

A) 100°C B) 100°C for 30 min C) 71°C for 15min and 62°C for 32 min D) 71°C for 32 m in and 62°C for 15 sec

Answer:   C
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