Target Exam

CUET

Subject

Biology

Chapter

Microbes in Human Welfare

Question:

Match List - I with List - II.

List – I (Organism)

List – II (Product)

(A) Aspergillus niger

(I) Lactic Acid

(B) Acetobacter aceti

(II) Citric Acid

(C) Lactobacillus

(III) Butyric Acid

(D) Clostridium butylicum

(IV) Acetic Acid

Choose the correct answer from the options given below:

Options:

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

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

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

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

Correct Answer:

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

Explanation:

The correct answer is Option (3) → (A)-(II), (B)-(IV), (C)-(I), (D)-(III)

List – I (Organism)

List – II (Product)

(A) Aspergillus niger

(II) Citric Acid

(B) Acetobacter aceti

(IV) Acetic Acid

(C) Lactobacillus

(I) Lactic Acid

(D) Clostridium butylicum

(III) Butyric Acid

Microbes are used for commercial and industrial production of certain chemicals like organic acids, alcohols and enzymes. Examples of acid producers are Aspergillus niger (a fungus) of citric acid, Acetobacter aceti (a bacterium) of acetic acid; Clostridium butylicum (a bacterium) of butyric acid and Lactobacillus (a bacterium) of lactic acid. Yeast (Saccharomyces cerevisiae) is used for commercial production of ethanol.