Question

Match LIST-I with LIST-II

LIST-I (Commercial Production)		LIST-II (Microorganism)
A. Citric acid	I. Corynebacterium glutamicum
B. Ethanol	II. Aspergillus niger
C. Amino acids and nucleotides	III. Claviceps purpurea
D. Alkaloids	IV. Saccharomyces cerevisiae

Choose the correct answer from the options given below:

• A. A - II, B - III, C - IV, D - I
• B. A-I, B-III, C - II, D - IV
• C. A - II, B - IV, C - I, D - III
• D. A-III, B - IV, C - I, D - II

Hint:

Associate key products with their microbes: Ethanol $\rightarrow$ Yeast (Saccharomyces), Citric Acid $\rightarrow$ Aspergillus niger, Amino Acids (especially Glutamate) $\rightarrow$ Corynebacterium. These are classic examples in industrial microbiology.

Answer 1

The Correct Option is C

Step 1: Understanding the Concept:
This question tests knowledge of industrial microbiology, specifically which microorganisms are used for the large-scale commercial production of certain chemicals and compounds.
Step 2: Detailed Explanation:
Let's match each product in LIST-I with the correct microorganism from LIST-II:


A. Citric acid: The primary microorganism used for the industrial production of citric acid is the fungus Aspergillus niger. This matches II.

B. Ethanol: Ethanol fermentation for beverages and biofuel is famously carried out by the yeast Saccharomyces cerevisiae. This matches IV.

C. Amino acids and nucleotides: The bacterium Corynebacterium glutamicum is extensively used for the industrial production of amino acids, particularly L-glutamate and L-lysine. This matches I.

D. Alkaloids: Ergot alkaloids, which have various pharmaceutical applications, are produced by the fungus Claviceps purpurea. This matches III.

Step 3: Final Answer:
The correct set of matches is A-II, B-IV, C-I, D-III. This corresponds to option (C).