Question

Some antibiotics come from bacteria of the genus ____ and others from molds, mostly from the genera _____ and _____.

A) Staphylococcus, Aspergillus, Penicillium.
B) Salmonella, Candida, Bacillus.
C) Lactobacillus, Saccharomyces, Streptomyces.
D) Clostridium, Rhizopus, Escherichia.

Answer 1

The bacteria genus that produces antibiotics is Streptomyces, while the mold genera known for antibiotics are Aspergillus and Penicillium.

Step-by-step explanation:

The correct answer to the question is C) Streptomyces, Aspergillus, and Penicillium. Antibiotics can be derived from various microorganisms, including bacteria and molds. For instance, the accidental discovery of penicillin was made by Sir Alexander Fleming, who noted that the mold Penicillium notatum could kill colonies of Staphylococcus aureus. This mold belongs to the genus Penicillium, which, along with Aspergillus, is known for producing antibiotic compounds. On the bacterial side, members of the genus Streptomyces are renowned for their ability to produce a wide array of antibiotics, such as streptomycin and tetracycline. These microbes are cultivated under specific fermentation conditions, and in many cases, genetically modified strains are developed to maximize antibiotic production.