Target Exam

CUET

Subject

Biology

Chapter

Microbes in Human Welfare

Question:

Match List - I with List - II. Match the following list of bioactive substances and their role.

List – I (Bioactive Substance)

List – II (Role)

(A) Statin

(I) Removal of oil stains

(B) Cyclosporin A

(II) Removal of clots from blood vessels

(C) Streptokinase

(III) Lowering of blood cholesterol

(D) Lipase

(IV) Immuno-suppressive agent

Choose the correct answer from the options given below:

Options:

(A)-(III), (B)-(II), (C)-(IV), (D)-(I)

(A)-(IV), (B)-(I), (C)-(III), (D)-(II)

(A)-(II), (B)-(IV), (C)-(I), (D)-(III)

(A)-(III), (B)-(IV), (C)-(II), (D)-(I)

Correct Answer:

(A)-(III), (B)-(IV), (C)-(II), (D)-(I)

Explanation:

The correct answer is Option (4) → (A)-(III), (B)-(IV), (C)-(II), (D)-(I)

List – I (Bioactive Substance)

List – II (Role)

(A) Statin

(III) Lowering of blood cholesterol

(B) Cyclosporin A

(IV) Immuno-suppressive agent

(C) Streptokinase

(II) Removal of clots from blood vessels

(D) Lipase

(I) Removal of oil stains

A. 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.

B. Cyclosporin A is a bioactive molecule that is widely used as an immunosuppressive agent in organ transplant patients. It plays a crucial role in preventing organ rejection by suppressing the immune system's response to the transplanted organ. This important medication is derived from the fungus Trichoderma polysporum.

C. Streptokinase, produced by the bacterium Streptococcus and genetically modified, serves as a "clot buster" in the removal of blood clots from the vessels of individuals who have experienced a heart attack.

D. Microbes are also used for commercial and industrial production of certain chemicals like organic acids, alcohols and enzymes. Lipases are used in detergent formulations and are helpful in removing oily stains from the laundry.