Question

Match List-I with List-II
\includegraphics[width=0.6\linewidth]{67.png Choose the correct answer from the options given below:

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

Hint:

Dipicolinic acid is a unique biomarker for bacterial endospores (C - I), and zygospores are sexual structures in fungi (A - III).
This helps isolate the correct option.

Answer 1

The Correct Option is A

Step 1: Understanding the Concept:
Many biological structures, metabolic enzymes, and chemical toxins have specific structural properties and occur in distinct groups of organisms.

Step 2: Detailed Explanation:
Let us match each term from List-I with its corresponding description in List-II:
(A) Zygospores are thick-walled sexual spores (III) formed by the fusion of gametangia in fungi belonging to the phylum Zygomycota.
(B) Endotoxins (specifically lipopolysaccharides) are structural components found in the outer membrane of Gram-negative bacteria (V) that are released upon cell lysis.
(C) Dipicolinic acid is a chemical compound found in high concentrations within the core of bacterial endospores (I), where it complexes with calcium ions to provide heat and environmental resistance.
(D) Nitrogenase (specifically Component I) is a multi-subunit metalloenzyme composed of a molybdenum-iron protein, also called the MoFe-protein (II), which catalyzes the reduction of dinitrogen to ammonia.
(E) Dinitrogenase reductase (specifically Component II of the nitrogenase complex) is an iron-only protein, also called the Fe-protein (IV), which acts as an electron donor to dinitrogenase.
Combining these matches, we get: (A)-(III), (B)-(V), (C)-(I), (D)-(II), (E)-(IV).

Step 3: Final Answer:
This matching sequence is represented by option (A).