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प्रश्न
What is the microbial source of vitamin B12?
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उत्तर
The microbial source of Vitamin B12 is Pseudomonas denitrificans.
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संबंधित प्रश्न
Sketch and label 'tubular tower fermenter'.
In which way have microbes played a major role in controlling diseases caused by harmful bacteria?
Name the microbes that help the production of the following product commercially:
Penicillin
Identify the diagram given below.

Match List - I with List - II.
| List I | List II | ||
| (a) | Aspergillus niger | (i) | Acetic Acid |
| (b) | Acetobacter aceti | (ii) | Lactic Acid |
| (c) | Clostridium butylicum | (iii) | Citric Acid |
| (d) | Lactobacillus | (iv) | Butyric Acid |
Choose the correct answer from the options given below.
What are fermentors?
How has the discovery of antibiotics helped mankind in the field of medicine?
Match the following products with their microbial sources:
| Products | Microbial Sources | ||
| (a) | Vitamin B2 | (1) | Rhizopus arrhizus |
| (b) | Fumaric acid | (2) | Candida lipolytica |
| (c) | Vitamin B12 | (3) | Trichoderma konigii |
| (d) | Lipase | (4) | Neurospora gossypii |
| (e) | Cellulase | (5) | Pseudomonas denitrificans |
| (f) | Citric Acid | (6) | Aspergillus niger |
______ is used for the production of beverages like wine, beer whiskey, brandy or rum.
Why are some molecules called bioactive molecules?
