| 1. | Afferent arteriole | 2. | Efferent arteriole | 
| 3. | Vasa recta | 4. | Peri tubular capillary | 
| Statement I: | Glomerulus along with Bowman’s capsule, is called the malpighian body or renal corpuscle. | 
| Statement II: | The DCTs of many nephrons open into a straight tube called collecting duct. | 
| I: | is a fine capillary network around the renal tubule formed by efferent arteriole. | 
| II: | runs parallel to the Henle’s loop in juxtamedullary nephrons. | 
| III: | is absent or highly reduced in cortical nephrons. | 
| 1. | 10% of the blood pumped out by each ventricle of the heart in a minute. | 
| 2. | 20% of the blood pumped out by each ventricle of the heart in a minute. | 
| 3. | 30% of the blood pumped out by each ventricle of the heart in a minute. | 
| 4. | 40% of the blood pumped out by each ventricle of the heart in a minute. | 
| 1. | Macula densa | 2. | Juxtaglomerular cells | 
| 3. | Podocytes | 4. | Mesangial cells | 
| Statement I: | JGA is a special sensitive region formed by cellular modifications in the proximal convoluted tubule and the efferent arteriole at the location of their contact. | 
| Statement II: | A fall in GFR can activate the JG cells to release renin which can stimulate the glomerular blood flow and thereby the GFR back to normal. | 
| Assertion (A): | Tubular secretion helps in the maintenance of ionic and acid-base balance of body fluids. | 
| Reason (R): | During urine formation, the tubular cells secrete substances like H+, K+ and ammonia into the filtrate. | 
| 1. | (A) is True but (R) is False. | 
| 2. | Both (A) and (R) are True and (R) correctly explains (A). | 
| 3. | (A) is False but (R) is True. | 
| 4. | Both (A) and (R) are True but (R) does not correctly explain (A). |