1. Dialysis is used to complete the function of [D] Kidneys. It is a medical procedure employed when the kidneys are unable to adequately perform their vital roles of filtering waste products, excess salts, and fluids from the blood. By mimicking the natural filtration process of the kidneys, dialysisRead more

    Dialysis is used to complete the function of [D] Kidneys. It is a medical procedure employed when the kidneys are unable to adequately perform their vital roles of filtering waste products, excess salts, and fluids from the blood. By mimicking the natural filtration process of the kidneys, dialysis helps maintain the body’s balance of electrolytes and fluids. During dialysis, blood is circulated through a machine that contains a semi-permeable membrane. This membrane allows waste products and excess fluids to pass through, cleansing the blood. The purified blood is then returned to the body.
    While other organs like the lungs, heart, and liver play crucial roles in maintaining overall bodily functions, dialysis specifically addresses the impaired kidney function by providing artificial filtration. Therefore, dialysis completes the function of the kidneys, ensuring essential waste removal and maintaining proper fluid and electrolyte balance in the body.

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  2. The maximum amount of urea is found in [A] blood. Urea, a waste product resulting from the breakdown of proteins in the liver, is primarily transported in the bloodstream to the kidneys for filtration and eventual excretion in urine. Blood serves as the main carrier for urea, ensuring its delivery tRead more

    The maximum amount of urea is found in [A] blood. Urea, a waste product resulting from the breakdown of proteins in the liver, is primarily transported in the bloodstream to the kidneys for filtration and eventual excretion in urine. Blood serves as the main carrier for urea, ensuring its delivery to the kidneys for removal from the body. While urea may also be present in other bodily fluids such as sweat and saliva, the concentration is significantly lower compared to blood. The heart, on the other hand, is a muscular organ responsible for pumping blood throughout the body and does not store urea.
    Likewise, urine is the primary excretory product containing urea, but the amount found in urine is lower than what is present in the bloodstream. Therefore, blood contains the maximum amount of urea in the human body.

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  3. The artificial kidney functions primarily on the principle of [C] Dialysis. Dialysis is a process that replicates the natural function of the kidneys, which involves removing waste products and excess fluids from the blood. It operates by utilizing diffusion, a process where solutes move from an areRead more

    The artificial kidney functions primarily on the principle of [C] Dialysis. Dialysis is a process that replicates the natural function of the kidneys, which involves removing waste products and excess fluids from the blood. It operates by utilizing diffusion, a process where solutes move from an area of high concentration to an area of low concentration across a semi-permeable membrane. In hemodialysis, blood flows through one side of the semi-permeable membrane while a dialysis solution flows on the other side.

    This allows waste products and excess fluids in the blood to pass through the membrane and be removed by the dialysis solution. Osmosis also plays a role in dialysis by facilitating the movement of water across the membrane to maintain proper fluid balance. Active circulation, however, is not a primary principle of artificial kidney function.

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  4. The functional unit of the kidney is [C] Nephron. Nephrons are complex microscopic structures responsible for the filtration of blood and the formation of urine in the kidneys. Each kidney contains millions of nephrons. Each nephron consists of a renal corpuscle, comprising the glomerulus and BowmanRead more

    The functional unit of the kidney is [C] Nephron. Nephrons are complex microscopic structures responsible for the filtration of blood and the formation of urine in the kidneys. Each kidney contains millions of nephrons. Each nephron consists of a renal corpuscle, comprising the glomerulus and Bowman’s capsule, and a renal tubule. The renal tubule further includes the proximal convoluted tubule, loop of Henle, distal convoluted tubule, and collecting duct. Blood is filtered in the renal corpuscle, where waste products and excess substances are removed from the blood and converted into urine.
    The renal tubule then processes this filtrate, reabsorbing essential substances such as water, glucose, and electrolytes, and secreting waste products into the urine. The nephron’s intricate structure and physiological functions play a crucial role in maintaining electrolyte balance, regulating blood pressure, and eliminating waste products from the body.

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  5. The yellow color of urine is due to the presence of [D] Urochrome. Urochrome, also known as urobilin, is a pigment resulting from the breakdown of hemoglobin during the normal metabolic processes in the liver. After hemoglobin is broken down, bilirubin is produced, which is further processed and excRead more

    The yellow color of urine is due to the presence of [D] Urochrome. Urochrome, also known as urobilin, is a pigment resulting from the breakdown of hemoglobin during the normal metabolic processes in the liver. After hemoglobin is broken down, bilirubin is produced, which is further processed and excreted in bile. Some of the bilirubin is converted into urobilinogen in the intestines, which is then oxidized by intestinal bacteria to form urochrome.
    Urochrome is filtered from the blood by the kidneys and excreted in urine, giving it a yellow color. The intensity of the yellow color can vary depending on factors such as hydration levels, diet, and certain medications. Therefore, the presence of urochrome is responsible for the typical yellow hue observed in urine.

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