The Effect Of Different Fluids On Urine Volume, Concentration, And Ph

The independent variable was the concentration of sucrose in the dialysis tubing we used as a simulated membrane.

Mr. K. B’s kidneys should be compensating for his fluid losses and electrolytes by excreting more acids and

i. why there is a delay in the onset of the diuresis after water loading in the control subject (A);

The functions of the renal system, which are performed by the kidneys, are to regulate and maintain the balance of electrolytes and the pH of the fluid that has been processed. It assists in the production of new red blood cells and it also involved in the maintenance of blood pressure.

Consequently, the efferent arteriole, which filters blood away from the glomerulus, is tinier in diameter than the afferent arteriole, which carries blood into each glomerulus. This puts blood under high pressure in the glomerulus; thus it forces tiny molecules and liquid out of the capillary and into the Bowman’s capsule. Soon afterwards, the tiny and liquid molecules cross the epithelium of the Bowman’s capsule, the basement membrane and capillary wall in order to get into the Bowman’s capsule and to arrive in the nephron tubules. The consequence of this is that the filtrate (the tiny and liquid molecules) pass along the remainder of the nephron and helpful substances are reabsorbed along the route. Last of all, “the filtrate flows through the collecting duct and passes out of the kidney along the ureter” as mentioned by (Parson’s, R: p128).

3. What would happen to the amount of H+ secreted into the renal tubule if the activity of the Na+ /K+

What happens to the urea concentration in the left beaker (the patient)? It mixes with the water to balance out the structure.

The Congo red solution is used to mimic blood and the yellow food color mimics the excretory product of the kidney. When a mixture of Congo red, yellow food color and water were mixed and taken in a dialysis bag, the yellow food color diffuses out into the surrounding water in which the dialysis bag is suspended. At the end of the experiment, the contents in the dialysis bag represent the blood; the contents of the beaker represent the urine formed. The beaker has a slight yellow tinge that results from the yellow food color.

distal tubule adjusts the ionic balance of the body by changing the amount of sodium

In the human body, there are systems that provide different functions and help the body to operate more efficiently. The urinary system is one in particular designed to help the body remain free of excess that we no longer need. “The urinary tract is the drainage system used for removing wastes and extra water. The urinary tract includes two kidneys, two ureters, a bladder, and a urethra. The kidneys are a pair of “bean-shaped” organs, each about the size of a fist. The kidneys are located below the ribs, one on each side of the spine, towards the middle of the back.” (NIDDK, 2013) Every several minutes, your kidneys filter around three ounces of blood, also then removing wastes and extra water. That extra water and

In Kidney failure cases urea, creatine, uric acids and electrolytes move from the blood to the dialysate with the net effect of lowering their concentration in the blood. RBC s WBC s and plasma proteins are too large to diffuse through the pores of the membrane. Hemodialysis patient are exposed to 120 to 130 L of water during each dialysis treatment. Small molecular weight substances can pass from the dialysate in to patient’s blood. So the purity of water used for dialysis is monitored and controlled.

Perform a urinalysis when possible to find levels of Specific Gravity (how concentrated the urine is), pH, Protein, Blood, Nitrites, Leukocytes, Ketones, Glucose and Bilirubin. The results of this test can help identify any possible impairment in renal function and identify the presence of an infection (Vera, 2011).

The proximal convoluted tubule acts as a selective reabsorption which are valuable substances that are taken back into the blood and are not lost in the urine. Selective reabsorption takes place by the active transport, which needs energy provided by ATP. Proximal convoluted tubule cells have many mitochondria to generate ATP by aerobic respiration. Normally, the glucose is reabsorbed from the proximal convoluted tubule. However, even though the high capacity of tubule cells to generate ATP, there is a limit to the amount of glucose that can be reabsorbed. If the blood glucose concentration is higher than a critical level called the renal threshold, glucose appears in the urine.

There is a pair of kidneys in the human body. They are situated towards the back of the body under the ribs, just at the level of the waist where one on either side of the body. Each kidney is composed of about one million units which are called nephrons and each nephron consists of two parts: a filter which is called the glomerulus and a tubule leading out from the nephron (Cameron 1999). According to Marshall and Bangert (2008) the kidneys have three major functions. Firstly, the kidneys are excretion of waste from plasma in the blood. The second function is that, they maintain of extracellular fluid volume and composition. Lastly, the kidneys have a role in hormone synthesis.

This experiment was used to examine the hypothesis that: Osmosis is dependent on the concentrations of the substances involved.