1. cortex
2. medulla
3. pelvis
4. hilus
medulla
1. absorption of water
2. absorption of sugar
3. absorption of sodium
4. secretion of ions
absorption of water
1. Atmospheric pressure
2. Osmotic pressure
3. Suction pull
4. Root pressure
Suction pull
1. gravitational water
2. hygroscopic water
3. capillary water
4. chemically bound water
capillary water
1. lack urease
2. do not excrete urea
3. cannot form uric acid
4. live in water
lack urease
1. Gravitational water
2. Capillary water
3. Hygroscopic water
4. Bound water
Capillary water
1. Melvin cycle
2. F F Blackman
3. T W Englemann
4. Henry Dixon
5. Hans A Krebs
Henry Dixon
1. duodenum
2. jejunum
3. ileum
4. All of these
jejunum
1. osmosis
2. imbibition
3. guttation
4. adhesion-cohesion forces
adhesion-cohesion forces
1. uric acid
2. carbon dioxide
3. ammonia
4. urea
urea