The term antibiotics was coined by Waksman but the first known antibiotic, penicillin was extracted from fungi Penicillium notatum by Alexander Flemming in 1944. Antibiotics are the chemicals that are produced from the living organisms, used to kill another living organisms. About 2300 antibiotics discovered so far e.g. Streptomycin, Tetracycline etc.

Correct Option: C

The term antibiotics was coined by Waksman but the first known antibiotic, penicillin was extracted from fungi Penicillium notatum by Alexander Flemming in 1944. Antibiotics are the chemicals that are produced from the living organisms, used to kill another living organisms. About 2300 antibiotics discovered so far e.g. Streptomycin, Tetracycline etc.

Yeast carry out fermentation, releasing CO₂ making bread soft and porous. Hence, Saccharomyces is referred to as baker’s yeast.

Correct Option: A

Yeast carry out fermentation, releasing CO₂ making bread soft and porous. Hence, Saccharomyces is referred to as baker’s yeast.

Yeast helps in ethyl alcohol formation. Lactobacillus is the milk bacteria while is the free living nitrogen fixing bacteria and Penicillium is the source of Penicillin.

Correct Option: A

Yeast helps in ethyl alcohol formation. Lactobacillus is the milk bacteria while is the free living nitrogen fixing bacteria and Penicillium is the source of Penicillin.

Aspergillus niger is known as guinea pig of kingdom fungi. The main source of commercial preparation of citric acid is the fermentation of sugar with Aspergillus niger.

Correct Option: B

Aspergillus niger is known as guinea pig of kingdom fungi. The main source of commercial preparation of citric acid is the fermentation of sugar with Aspergillus niger.

Yeast performs alcoholic fermentation because of enzyme ‘zymase’. It is used in the production of ethyl alcohol or ethanol.

Correct Option: C

Yeast performs alcoholic fermentation because of enzyme ‘zymase’. It is used in the production of ethyl alcohol or ethanol.