Question

Choose the odd one out in the following series:
(i) Proximal convoluted duct, loop of Henle, vein.
(ii) Kidney, ureter, heart.
(iii) Urea, uric acid, haemoglobin.
(iv) Glomerulus alveoli, bronchi.
(v) Renal fat, renal capsule, nerve.
(vi) Column of Bertini, minora calyces, brain.

Answer 1

(i) Vein
Loop of Henle and proximal convoluted duct are parts of a nephron, whereas vein is not.

(ii) Heart
Kidney and ureter are parts of the excretory system, whereas heart is a part of the circulatory system.

(iii) Haemoglobin
Urea and uric acid are waste products, whereas haemoglobin is a pigment present in the RBCs.

(iv) Glomerulus
Bronchi and alveoli are parts of the lungs, whereas glomerulus is located in the malphigian tubules in the kidneys.

(v) Nerve
Renal fat and renal capsule are associated with the kidney, whereas nerve is associated with the nervous system.

(vi) Brain
Column of Bertini and minora calyces are located in the kidneys, whereas brain is located in the skull.