Step 1: Understanding the Concept:
Nutritional deficiency disorders arise when the body receives insufficient quantities of essential macronutrients (proteins) or micronutrients (vitamins and minerals).
Step 2: Detailed Explanation:
Let us match each disease in List-I with its respective deficient nutrient in List-II:
• (A) Kwashiorkor: A severe form of malnutrition caused by insufficient protein intake despite adequate caloric intake. Pairs with (V) Protein.
• (B) Blood clotting (impaired): Vitamin K is essential for the post-translational modification of coagulation factors (like prothrombin). Pairs with (III) Vitamin K.
• (C) Anaemia: Microcytic anemia is commonly caused by a lack of dietary iron needed for hemoglobin synthesis. Pairs with (II) Iron.
• (D) Beriberi: A neurological and cardiovascular disease resulting from Thiamine (Vitamin B1) deficiency. Pairs with (I) Thiamine.
• (E) Scurvy: Characterized by weak collagen synthesis and bleeding gums due to ascorbic acid deficiency. Pairs with (IV) Vitamin C.
This mapping gives: (A)-(V), (B)-(III), (C)-(II), (D)-(I), (E)-(IV).
Step 3: Final Answer
The correct matching sequence is (A)-(V), (B)-(III), (C)-(II), (D)-(I), (E)-(IV).