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कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

How was penicillin discovered? - Biology

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प्रश्न

How was penicillin discovered?

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उत्तर

Penicillin was an accidental discovery. Sir Alexander Fleming observed that in unwashed culture plates of Staphylococcus, a mould Penicillium was growing This mould inhibited the growth of Staphylococcus. Latre the antibiotic Penicillin was isolated from this fungus.

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अध्याय 10: Microbes in Human Welfare - SHORT ANSWER [पृष्ठ ७३]

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एनसीईआरटी एक्झांप्लर Biology [English] Class 12
अध्याय 10 Microbes in Human Welfare
SHORT ANSWER | Q 5. | पृष्ठ ७३

वीडियो ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्न

Sketch and label 'tubular tower fermenter'.


Name the source of streptokinase. How does this bioreactor molecule function in our body?


The antibiotic chloromycetin is obtained from ______.


From which microbial sources can pectinase be obtained?


State the medicinal value and the bioactive molecules produced by Monascus purpureus.


Aspergillus niger is used to prepare vit ______.


Define the following term

Antibiotics


When does antibiotic resistance develop?


Which of the following is/are used for production of beverages like wine, beer, whiskey, brandy or rum?


Which one of the following processes involved in alcohol production is NOT involved in wine production?


Match the following list of bioactive substances and their roles:

Bioactive Substance Role
A. Statin I. Removal of oil stains
B. Cyclosporin A II. Removal of clots from blood vessels
C. Streptokinase iii. Lowering of blood cholesterol
D. Lipase iv. Immuno-suppressive agent

Choose the correct match:


What are fermentors?


Give any two microbes that are useful in biotechnology.


Name any two industrially important enzymes.


State the most important contribution of the following microbes for human welfare:

Monascus purpureus


State the most important contribution of the following microbes for human welfare:

Trichoderma Polysporum


Identify the enzyme ‘A’ in a given reaction.

\[\ce{Fumaric acid + H2O ->['A']Malate}\]


Write the microbial source of following organic acid:

Fumaric acid


Give the name of microbial source of antibiotic chloromycetin.


Mention the respective source and state the specific use of any two bioactive molecules.


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