Consider the two statements:
| I: | The process of filtration at Malpighian body is regarded as ultrafiltration. |
| II: | Blood is filtered so finely that all constituents of plasma pass into the lumen of Bowman’s capsule. |
| 1. | Both I and II are correct and II explains I |
| 2. | Both I and II are correct but II does not explain I |
| 3. | I is correct but II is incorrect |
| 4. | I is incorrect but II is correct |
Filtration slits in the glomerular membrane are formed by:
1. The capillary endothelial cells
2. The basement membrane
3. The podocyte cells
4. Mesangial cells
All the following are secreted by the tubules of nephrons except:
| 1. Sodium ions | 2. Potassium ions |
| 3. Uric acid | 4. Hydrogen ions |
The vascular endothelium of glomerular capillaries, basement membrane, and podocytes in the inner lining of Bowman’s capsule form:
| 1. | filtration membrane | 2. | juxtaglomerular apparatus |
| 3. | Malpighian corpuscle | 4. | nephron |
About what percent of the glomerular ultrafiltrate is reabsorbed by the tubules during urine formation?
| 1. 99% | 2. 70% |
| 3. 50% | 4. 20% |
Glomerular ultrafiltrate normally does not contain:
| 1. formed elements of the blood | 2. glucose |
| 3. amino acids | 4. electrolytes |
The part of the nephron where both hydrogen and potassium ions are secreted into the tubular fluid is the
| 1. | Malpighian body | 2. | proximal convoluted tubule |
| 3. | loop of Henle | 4. | distal convoluted tubule |