Target Exam

CUET

Subject

Biology

Chapter

Microbes in Human Welfare

Question:

Match List - I with List - II.

List – I

List – II

(A) Aspergillus niger

(I) Butyric acid

(B) Saccharomyces cerevisiae

(II) Citric acid

(C) Clostridium butylicum

(III) Lactic acid

(D) Lactobacillus

(IV) Ethanol

Choose the correct answer from the options given below:

Options:

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

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

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

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

Correct Answer:

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

Explanation:

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

List – I

List – II

(A) Aspergillus niger

(II) Citric acid

(B) Saccharomyces cerevisiae

(IV) Ethanol

(C) Clostridium butylicum

(I) Butyric acid

(D) Lactobacillus

(III) 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.