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What indicates the amount of dissolved substance in the urine?
The specific gravity of urine indicates the amount of dissolved substances in urine. It is a measure of the density of urine compared to water. A higher specific gravity indicates a higher concentration of dissolved substances, while a lower specific gravity indicates a lower concentration.
What are the four main physiological processes that contribute to urine formation?
Filtration of blood, re-absorption, secretion of substances, concentration of urine
Will warming up urine dilute it?
No, warming up urine will not dilute it. Dilution occurs when more liquid is added to the urine, decreasing the concentration of substances present. Heating urine does not change its chemical composition.
Why is there trash in your urine?
Urine is one of the products of the body's excretory system. It is produced when blood filters through the kidneys. It is composed of dissolved wastes and excess water or chemical substances from the body.
Why the concentration of urea in urine is higher than the concentration of urea in the filtrate?
The concentration of urea in urine is higher than in the filtrate due to the processes of reabsorption and secretion that occur during kidney function. As the filtrate passes through the renal tubules, water and various solutes are reabsorbed back into the bloodstream, concentrating the remaining substances, including urea. Additionally, urea can be secreted into the tubules from the blood, further increasing its concentration in the urine. This selective reabsorption and secretion ensure that waste products are efficiently excreted while conserving necessary substances.
Is urine homogenous mixture?
Urine is not considered to be a mixture, it is actually a solution. However, it is, indeed, a homogenous solution.
Would protein concentration increase if glomerulus becomes constricted?
No, protein concentration in the blood would not increase if the glomerulus becomes constricted. The glomerulus is responsible for filtering the blood to form urine, and a constriction would reduce the filtration rate. This might lead to decreased urine output and retention of substances normally excreted in urine, but it would not directly affect the protein concentration in the blood.
What is the most abundant substance in urine?
Water is the most abundant substance in urine, typically making up about 95% of urine volume. The other 5% consists of waste products such as urea, creatinine, uric acid, and other dissolved ions and substances.
When does glucose concentration in urine become zero?
The normal glucose concentration in urine ranges from 0 to 15 mg/dL. The glucose concentration in urine becomes zero when no glucose has spilled over into the urine.
How does ADH affect the concentration of potassium in urine?
ADH, or antidiuretic hormone, increases water reabsorption in the kidneys, leading to more concentrated urine. As water is reabsorbed, the concentration of solutes in the urine, including potassium, increases. Therefore, ADH indirectly affects the concentration of potassium in urine by influencing the overall concentration of solutes.
What waste removal is the urinary system is responsible for?
Urine, which is composed of dissolved wastes and excess water or chemical substances from the body and is produced when blood filters through the kidneys.
Why do you have urine?
Urine is the bodies method of excreting excesswater and dissolved wastes.
