Target Exam

CUET

Subject

Biology

Chapter

Microbes in Human Welfare

Question:

Match List-I with List-II:

List-I Microbes

List-II Acid Produced

(A) Aspergillus

(I) Lactic acid

(B) Acetobacter

(II) Butyric acid

(C) Clostridium

(III) Acetic acid

(D) Lactobacillus

(IV) Citric acid

Choose the correct answer from the options given below:

Options:

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

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

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

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

Correct Answer:

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

Explanation:

The correct answer is Option (1) → (A)-(IV), (B)-(III), (C)-(II), (D)-(I)

List-I Microbes

List-II Acid Produced

(A) Aspergillus

(IV) Citric acid

(B) Acetobacter

(III) Acetic acid

(C) Clostridium

(II) Butyric acid

(D) Lactobacillus

(I) Lactic 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.