#1-2 Quiz: Viruses, Bacteria, Protists, and Fungi

What role do fungi play in the ecosystem?

• Fungi produce oxygen through photosynthesis.

• Fungi decompose organic matter, recycling nutrients back into the soil.

• Fungi are primary producers in the food chain.

• Fungi cause diseases in plants and animals.

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What is the structure of a virus?

• A virus consists of genetic material (DNA or RNA) surrounded by a protein coat.

• A virus is made up of only proteins without any genetic material.

• A virus contains a cell wall and a nucleus like bacteria.

• A virus is a single-celled organism that can reproduce independently.

What type of organisms are bacteria?

• Multi-celled organisms

• Single-celled organisms

• Viruses

• Fungi

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How do most bacteria reproduce?

• Asexually, by dividing into identical cells.

• Sexually, by exchanging genetic material.

• By forming spores that can survive extreme conditions.

• Through binary fission followed by conjugation.

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What are the three basic shapes of bacteria?

• Ball, rod, or spiral.

• Square, triangular, or oval.

• Flat, round, or hexagonal.

• Long, short, or thick.

What is the main difference between bacteria and viruses?

• Bacteria are larger than viruses.

• Bacteria can reproduce on their own, while viruses need a host to replicate.

• Bacteria are always harmful, while viruses are not.

• Bacteria can be seen with the naked eye, while viruses cannot.

What is the function of bacteria in the nitrogen cycle?

• Bacteria convert nitrogen gas from the atmosphere into forms usable by plants.

• Bacteria decompose organic matter into carbon dioxide and water.

• Bacteria fix carbon dioxide into organic compounds for energy.

• Bacteria absorb nutrients directly from the soil.

What is a protist?

• A type of bacteria that can photosynthesize.

• A diverse group of single-celled organisms that can be plant-like, animal-like, or fungus-like.

• A multicellular organism that lives in water.

• A virus that infects plants.

What is the difference between fungi and plants?

• Fungi perform photosynthesis and have cell walls made of cellulose.

• Fungi do not perform photosynthesis and have cell walls made of chitin.

• Plants do not perform photosynthesis and have cell walls made of chitin.

• Plants perform photosynthesis and have cell walls made of chitin.

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What causes Athlete's Foot and Ringworm?

• Bacteria

• Viruses

• Fungi

• Parasites