Which term refers to chemicals produced by microorganisms that kill or inhibit other microorganisms?

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Study for the Leaving Certificate Biology Test. Prepare with flashcards and multiple-choice questions. Each question includes hints and explanations to enhance learning. Get ready to excel in your exam!

Multiple Choice

Which term refers to chemicals produced by microorganisms that kill or inhibit other microorganisms?

Explanation:
Antibiotics are chemicals produced by microorganisms that kill or inhibit other microorganisms. They come from bacteria or fungi and work by interrupting essential processes in competing microbes, such as building their cell walls or making proteins, which prevents growth or causes death. A well-known example is penicillin, produced by a mold, which blocks the construction of bacterial cell walls. This idea differs from vaccines (which train the immune system using antigens), antibodies (immune proteins that target specific pathogens), and antigens (substances that provoke an immune response). Antibiotics act directly on microbes to reduce their numbers, not by stimulating the immune system.

Antibiotics are chemicals produced by microorganisms that kill or inhibit other microorganisms. They come from bacteria or fungi and work by interrupting essential processes in competing microbes, such as building their cell walls or making proteins, which prevents growth or causes death. A well-known example is penicillin, produced by a mold, which blocks the construction of bacterial cell walls. This idea differs from vaccines (which train the immune system using antigens), antibodies (immune proteins that target specific pathogens), and antigens (substances that provoke an immune response). Antibiotics act directly on microbes to reduce their numbers, not by stimulating the immune system.

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