Streptokinase enzyme is used for:

removing clot from blood vessels

The correct answer is Option (1) → removing clot from blood vessels

Streptokinase produced by the bacterium Streptococcus and modified by genetic engineering is used as a ‘clot buster’ for removing clots from the blood vessels of patients who have undergone myocardial infarction leading to heart attack.

The bottled fruit juices bought from the market are clearer as compared to those made at home. This is because the bottled juices are clarified by the use of pectinases and proteases.

Statins produced by the yeast Monascus purpureus have been commercialised as blood-cholesterol lowering agents. It acts by competitively inhibiting the enzyme responsible for synthesis of cholesterol.

Lipases are enzymes that break down fats and oils. They are effective in removing oily stains from laundry. Lipases are often added to laundry detergents as an ingredient to enhance the cleaning power for oil-based stains.