Bacteria MCQs with Answers

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Yeast is essential in bread-making because it produces carbon dioxide, which causes the dough to rise and become soft and fluffy.

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Viruses are non-cellular entities that lack a cell structure and cannot carry out life processes on their own.

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The genetic material in a virus is DNA or RNA — viruses may contain either, but never both.

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The organisms commonly used for making antibiotics in biotechnology are bacteria.

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A phage virus (bacteriophage) is a virus that infects bacteria.

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Rabies disease is caused by a virus (Rhabdovirus).

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The containers used to grow bacteria on a large scale are called fermenters.

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The infective stage of Plasmodium is the Sporozoite, which is injected into the human bloodstream by the bite of an infected female Anopheles mosquito.

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9.4% of total known species are Prokaryotes.

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The penetration of a virus into the host cell is facilitated by the release of sugars (specifically, viral enzymes like neuraminidase that break down sugar residues on the host cell surface).