$A$ - Scientist Alexander Fleming discovered the first antibiotic.
$R$ - Methanogens are used for fermenting malted cereals and fruit juices to produce ethanol.

Consider the following statements:
$I.$ Yeast used in making bread and beverages is a prokaryotic fungus.
$II.$ Streptokinase is produced by $Streptococcus$ and modified by genetic engineering is used as a clot buster.
$III.$ Lipases are added in detergent for removing only stains from laundry.
$IV.$ Pectinases are used in clearing fruit juices.
Which of the statements given above are correct?

Arrange the following in the decreasing order (most important first) of their importance,for the welfare of human society. Give reasons for your answer.
Biogas,Citric acid,Penicillin and Curd

Match the following columns:

Column-$I$	Column-$II$
$(a)$ Distillation	$(1)$ Rhizobium
$(b)$ Non-distillation	$(2)$ Azotobacter
$(c)$ Symbiotic	$(3)$ Beer and Wine
$(d)$ Free-living	$(4)$ Whisky,Brandy,Rum

Choose the correct combination:

Column-$I$	Column-$II$
$A$. Escherichia coli	$I$. Nif gene
$B$. Rhizobium melilotae	$II$. Digestive hydrocarbon of crude oil
$C$. Bacillus thuringiensis	$III$. Production of human insulin
$D$. Pseudomonas putida	$IV$. Biological control of fungal disease
	$V$. Biodecomposed insecticide

Which of the following pairs is not correctly matched?