Antibody Structure Function And Diversity

In this question, we need to match the functions of the parts of the excretory system mentioned in Column I with the correct part in Column II.

Let's evaluate each pair from Column I:

1. Ultrafiltration occurs in the Malpighian corpuscle. This structure includes the glomerulus and Bowman’s capsule, where the filtration of blood occurs. Therefore, a-iv is correct.
2. Concentration of urine primarily takes place in the Henle’s loop and Proximal convoluted tubule. However, for this particular setup, it's crucial to note that the proximal convoluted tubule reabsorbs ions and water effectively contributing to the concentration process. Therefore, b-v is correct.
3. Transport of urine is the function of the Ureter, which carries urine from the kidneys to the urinary bladder. Therefore, c-ii is correct.
4. Storage of urine is managed by the Urinary bladder, which holds urine until it is expelled from the body. Therefore, d-iii is correct.

Thus, the correct matching of Column I with Column II is a-iv, b-v, c-ii, d-iii. This matches the expression of functions according to the involved parts of the excretory system.