Match the following list of microbes and what they are used for:

A.	Saccharomyces cerevisiae	1.	Production of immunosuppressive agents
B.	Monascus purpureus	2.	Ripening of Swiss cheese
C.	Trichoderma polysporum	3.	Commercial production of ethanol
D.	Propionibacterium shermanii	4.	Production of blood-cholesterol-lowering agents

1. A-3, B-4, C-1, D-2

2. A-4, B-3, C-2, D-1

3. A-4, B-2, C-1, D-3

4. A-3, B-1, C-4, D-2

Measuring Biochemical Oxygen Demand (BOD) is a method used for:

A nitrogen-fixing microbe associated with Azolla in rice fields is:

1. Spirulina

2. Anabaena

3. Frankia

4. Tolypothrix

The common nitrogen-fixer in paddy fields is:

1. Rhizobium

2. Azospirillum

3. Oscillatoria

4. Frankia

The bacteria and mould involved in the work of Alexander Fleming are :-

1. Staphylococci and Penicillium chrysogenum

2. Streptococci and Penicillium chrysogenum

3. Staphylococci and Penicillium notatum

4. Streptococci and Penicillium notatum

Name the product formed by Trichoderma polysporum and give its use.

1. Statins which are used as blood cholesterol lowering agent.

2. Cyclosporin A that is used as immunosuppressive agent.

3. Statins which are used as clot buster.

4. Cyclosporin A that is used to inhibit the enzyme responsible for cholesterol synthesis.

Which one of the following pairs is wrongly matched?

1. Detergents-Lipase

2. Alcohol-Nitrogenase

3. Fruit juice-Pectinase

4. Textile-Amylase